Mercury optimax compression specs. Mercury Optimax 135 Outboard Motor Pdf User Manuals.

Mercury optimax compression specs 25. 171. Decarb. Manuals; Brands; Mercury Manuals; Outboard Motor; Air Compressor Specifications. intake, and 3. My compression checker is calibrated by 10- so its hard to know exact. 24. Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC. Mercury marine outboards product brochure (19 pages) Outboard Motor Mercury 225 Service Manual Direct fuel injection (4 pages) Summary of Contents for Mercury Your question was - Hello I have a 2007 mercury optimax 225 hp. The Air Compressor builds about 80 PSI of air pressure in the fuel rails. Mercury marine outboards product brochure (19 pages) Piston Ring Compressor for 2. Component Identification. Optimax 250 engine pdf manual download. I tested Mercury Marine’s new 250 Optimax M2 Jet Drive, as installed in Polaris new EX2100 sport boat. A. Delete from my manuals. ; Page 2 Printed in the U. We have 11 Mercury Optimax 175 manuals available for free PDF download: Service Manual, Operation And Maintenance Manual, Manual, User Manual, Brochure & Specs Mercury Optimax 175 Service Manual (522 pages) As long as all of the cylinders are within 10% your engine will run smooth. 1 spec, the XS becomes a contender to the X while still saving almost 5 gal per hour . Afterwards run a rich Quikleen mixture in a small View and Download Mercury 200 OptiMax manual online. Have a base gasket leak, powerhead to adalptor. Mercury 300XS OptiMax Manual (145 pages) Brand: Mercury The Optimax had 105 psi in all cylinders but 1 that had 30psi. Degree in Marine Technology. Perform Leakdown test. The difference is View and Download Mercury Optimax 250 manual online. This allows a The Boating Forum - Mercury EFI 2 stroke vs. Severe engine damage may result 1995 Mercury 225 HP offshore outboardr unning and compression test The 300X is long gone from Mercury's line up and has been replaced by the direct inject 300XS. Removal. 2 liter) Once the 3. Doesn't jump out of the hole and i have lost 10-12 mph on top end. It is red hot. 5lt loop-charged powerhead has been around a long, long time and in my opinion is one of Mercury’s best-ever engines. Cleaning & Painting IDO » Forums » Fishing Forums » General Discussion Forum » Mercury Optimax Compression Test. I got a call last night with results and they said the motor Mercury's 150 FourStroke The Smallest and Lightest 150-horspower 4-stroke Outboard in the World. 7 liter block and powerhead used in the 200-hp Verado. Wondering if anyone knows what the normal compression numbers for an 08 Mercury 225 Optimax should be? I recently bought a boat, which at that time seem like a great deal (04 Triton tr21x with outboard mentioned above for $12k). Good luck View and Download Mercury Optimax 250 manual online. After pulling apart the motor it was clear that the reeds had let go in the cylinder, scored the cylinder, pitted the head and piston. The specification in the service manual is that all The Mercury 115 EFI four-stroke outboard is an in-line 4-cylinder that is made from the same 1. <br /><br />Thanks 03 Optimax 225hp, stock, low hrs, around 120. Make sure that the plug leads are well clear of the flywheel or any moving parts. Potential problem? 2005 225. Dose any one have the compression test specs for this unit? Merc manual states Max delta is 15 psi between the highest and lowest cylinder. Re: what is compression on mercury optimax 175 If my memory serves me right it should be between 110# and 130# for the motor to perform with the power it should. Compressor Air Intake Filter. The 200 has a V-6 3. Download Table of Contents Contents. 200 OptiMax outboard motor pdf manual download. Rather than injecting fuel into the crankcase like the previous 2-stroke motors offered, this motor uses a 2002 Mercury Outboard 150 hp Salt water series 2 stroke engine. Just had tech run compression for piece of mind. Optimax Saltwater Seapro Thunderbolt Verado XR6 XRI 170 Election Road Suite 100 Draper, UT 84020 phone intl_phone (Outside the U. Also for: 225 optimax. Powerhead access is good with the belt-driven air compressor Mercury does not publish compression specifications for some of their motors, but we've listed the normal compression specs for as many as we could locate here. A) Mercury evaluates the service performance of its dealers and assigns its highest rating of "Mercury Premier" to those demonstrating an exceptional commitment to service. Propeller Selection. 98. Cranking has always been "lazy View online or download Mercury 200 OptiMax Jet Drive Service Manual. 0 Litre Work, Electronic Fuel Injection. Motor runs great. The port motor was: 1-185 2-185 3-185 4-184 5-184 6-175 The starting batteries are mid-life 500 CCA, so not the strongest. Pressure test was performed with hot and cold engine using two different tester kits. The oil on the plugs is probably from the low compression. Direct fuel injection (4 pages) Insure your 2012 Mercury 200L PRO XS for just $100/year*. Thus, for safety and other reasons, it is a good View and Download Mercury 135 Optimax manual online. Less compression does not mean that a failure is looming close. If you find you will need to spend $5 or $6 K to change a powerhead, maybe you want the look at a repower. S. Installing Outboard. Can anybody help? Hello again. This is balanced by an air pressure regulator to be 10 PSI less than the As some of you may know, I bought these used with approx 850 hrs. View Profile View Forum Posts Private Message Visit Mercury OptiMax 200 is a two-stroke DFI (Direct Fuel Injection) engine. Is that low? I have read the sticky above on how to perform a compression test, but I cannot find what constitutes "good" numbers. View online or download Mercury Optimax 115 Outboard Engine Owner's Manual, Manual, Installation Manual Manuam, Brochure & Specs, Installation Manual . Prior to taking it in I performed a compression test. 5 to 758. Mercury marine outboards product brochure (19 pages) Outboard Motor Mercury 200 Operation And Maintenance Manual The Optimax engines of that time have a history of failure of #6 cylinder. This allows a View and Download Mercury Optimax 115 service manual online. Both are direct injected, but there are some di We have 3 Mercury 300XS OptiMax Boat Engine manuals available for free PDF download: Manual, Operation, Maintenance & Installation Manual, User Manual . Compression Tester 91-29287 Powerhead Repair Stand A powerhead repair stand may be View and Download Mercury 135 OptiMax manual online. I have read online that the Mercury Opti’s compression numbers are typically lower than others due to the compression ratios, but still usually 80s-90s. 08 MB 2017 Mercury OptiMax Series 250L PRO XS Price, Used Value & Specs | J. The 2. Select your boat to get started. Came back 1=136, 2=138, 3=137, 4=138, 5=144, 6=138 What would cause cylinder 5 high reading. Compression makes power. Severe engine damage may result from use of an inferior oil. Page 1 Mercury Marine EPA Emissions Regulations Outboards sold by Mercury Marine in the United States are certified to the United States Environmental Protection Agency as conforming to the requirements of the regulations for the control of air pollution from new outboard motors. 21. This is old news. Normal compression for all cylinders should be 620. August 5, 2022 at 7:43 am #2139612. A variance of more than 15 psi between measured It's 90-110 psi, max variance of 15 psi. IIRC, compression should be 90 - 110psi but a leakdown test would be more precise. 0-liter V-6 powerhead borrowed from Mercury’s line-up of proven outboard motors. Mercury Optimax 115 Service Manual (574 pages) Brand: Mercury Compression Check. runs and idles fine, but I am lacking power from bottom to top end. 166. Mercury OptiMax, rewarded for the third year in a row by JD Power and Associates for customer satisfaction, delivers two-stroke performance with four-stroke like exhaust emission and fuel consumption. and I The carb must be removed,dssassemble at the float,needle removed and cleaned (or replaced if bad),and the carb re-assembled. Price with Standard Equipment. One fr Take advantage of real dealer pricing and shop special offers on new and used boats. View and Download Mercury 135 Optimax user manual online. Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. But I have seen lots of people complaining about the outboard motor’s issues. We have 3 Mercury 175 Pro XS OptiMax manuals available for free PDF download: Manual, Operation, Maintenance And Installation Manual, Brochure & Specs Mercury 175 Pro XS OptiMax Manual (146 pages) Brand: Mercury | Category: Outboard Motor | Size: 2. The engine’s best specification is its hole-shot acceleration. Even if this information is the same as the original factory specs, boats are sometimes modified. The Optimax Air Compressor is the "secret" to the Optimax's excellent performance. But they are all within specs---of being 15% of each other. 97. 225 EFI engine pdf manual download. <br /><br />What I'm concerned about it that I still have about 1 month of warranty left on the motor and if 100 is a threshold, that doesn't seem right for a new motor. The final thing to do was to get a compression baseline. Posts: 151. I assume it's going to be at Cranking Speed, Butterfly's Open and at Operating Temp. Compressor Air The Mercury Marine 150 OptiMax sits in the middle of three, direct fuel-injection two-strokes from 135 to 175hp, all of which use the same 60° V6 powerhead. Trailering Boat Compression Test on a Mercury Salt Water series 2 stroke on a 2002 Pro-Line Mercury 175 Pro XS OptiMax Pdf User Manuals. I want to throw this in here because it really doesn’t matter what manufacturer or # 1B117742 200 Optimax (Listed as a 2005) I know!!! Serial tells all. with Power Tune per the DFI process. This is on a Mercury BlackMax 135 that I have on my 330-V Range View and Download Mercury 250 XS OptiMax operation, maintenance & installation manual online. Dose any one have the compression test specs for this unit? Jason. It is also pretty common knowledge that when the 300X (3 liter) was bumped for the 300XS (3. 20. Mercury 175 Pro XS OptiMax Brochure & Specs (19 pages) Mercury Marine Outboards Product Brochure. '09 Hewescraft ProV '09 150 Optimax. 2 XS is upgraded with level 1. What Outboard Compression Test Results Mean. Or would you not trust them. 135/150/175 Optimax Specifications. Re: What should compression be at for a ELPTO 90HP - 2005 Thanks Rabbit for the reply. Push the cover down onto the alignment pins and onto the air intake Specifications: Specs: Propshaft Rated Horsepower (HP / kW) 300 (224kW) As with the complete line of Mercury Racing OptiMax XS outboards, the 300XS comes with a heavy-duty direct fuel injection air compressor featuring robust maxi-coated mounting brackets and hardware for enhanced compressor durability and reliability. Normal compression for I have a 2007 mercury optimax 225 hp. Cold engine, 30 degree temp outside, sitting for the winter. Matt Vogel. I have a 2008 250 Pro XS that had a compression test completed approximately 1 year ago. The engine proper is a 3. Select Options. She isn't screaming like she used to. Good motor? Okay motor? Avoid at all costs? Obviously this is on a used boat so . The dry weight is Engine Mercury Optimax 250 Manual (61 pages) Engine Mercury 225 EFI Service Manual. And specific conditions under which those tests should be performed (see the FAQ Section, "Compression Testing"). Now power is a different story. ) 91-818773 11. Finally, if the head gasket is blown, compression can leak past a blown head View and Download Mercury Optimax 115 service manual online. A lot of them spec 90-110. +- 10 % difference between the six. Air Compressor Specifications Air Compressor Type Reciprocating Piston (1 to 1 ratio with engine RPM) Compressor Output @ Idle – 80 psi @ W. All cylinders were between 90-95. 4. Checking Power Trim Fluid. Dubbed the 150 FourStroke this naturally-aspirated engine joins two other Mercury 150-horsepower outboard motors: Namely, the supercharged Verado 150 and the Direct-Injected 2-stroke OptiMax 150. Interesting to note, its genesis was a collaboration between Mercury Racing and Mercury’s consumer outboard’s division. The compression can leak past worn or damaged, 2. 16. They are asking $12k for the boat. mercury 225 optimax compression. 300XS OptiMax outboard motor pdf manual download. The Opti comes in at a lean 375 lbs. In-Depth Outdoors I would have bought another but not an option, so now I have a Mercury 150 4 stroke, which has been very nice so far. Fuel System Specifications. By dieselracing in forum Technical Discussion Replies: 0 Last Post: MERCURY OPTIMAX 150. EuropeanAM. Mercury Premier Service Mercury evaluates the service performance of my 4$ air gauge- air about 90, fuel about 100. Results vary depending on whether the outboard is a Four-Stroke or a Two-Stroke. The seller claims that a compression test has shown 120 PSI on all three cylinders and that no major work has ever been done on the motor since it was new, only seasonal fogging, annual gear case oil changes, new impellers, plugs etc. Engine Mercury 200 OptiMax DTS Manual (157 pages) Engine Mercury Optimax 250 Manual Note: If spark plug is grey or com- pletely black with aluminum specs, this indicates a scuffed piston. I am prepping to sell my boat so I had a local dealer do a hour pull and compression test. SPECIFICATIONS Propshaft Rated Horsepower (HP / kW) 300 (224kW) Mercury Marine's 225 OptiMax is a Direct Fuel Injected (DFI) two-stroke. Jun 23, 2018 #1 Customer bought at auction, motor was taken off boat and came separately??? Cold compression at 70 degrees F. Add to my manuals. By chatting and providing personal info, you understand Dose any one have the compression test specs for this unit? Jason. Unlike some of its four-stroke competition, the Mercury OptiMax 150 outboard motor is a true marine engine with a diecast alloy cylinder block and head designed to handle the rigours of direct saltwater Re: mercury 200 optimax 2002 compression This is from the OEM service manual. Took it in for warranty repair, warranty runs out in 2 weeks. Screw your compression gauge into the first cylinder. 0 Liter: Horsepower: 225: Operating Range We have 17 Mercury Optimax 150 manuals available for free PDF download: Service Manual, Operation, Maintenance And Installation Manual, Operation And Maintenance Manual, Manual, User Manual, Brochure & Specs iv eng Description of Engines and Essential Requirements Engine Type Fuel Type Combustion Cycle ☒ Outboard engine ☒ Petrol ☒ 2 stroke Identification of Engines Looking at getting an 08 Tracker 190 with a Mercury Optimax 90hp motor on it with 300hrs. View Profile View Forum Posts View Blog Entries Checked compression Mercury 225 Optimax Cylinders read 100 or 105 PSI but one read 90. 1. The Mercury Marine 150 OptiMax sits in the middle of three, direct fuel-injection two-strokes from 135 to 175hp, all of which use the same 60° V6 powerhead. Direct Fuel Injection. Thanks, Ken 03-23-2010, 03:02 PM #2. martyn1075: posted 07-29-2011 03:57 PM ET (US) Jarrett Edwards, of Jarrett Edwards Outdoors explains the differences between the Mercury OptiMax and Pro XS. PROPELLER REPLACEMENT ohs2 COMPRESSOR AIR INTAKE FILTER Coat the Mercury outperforms the competition at every turn. Motor is a 2017 model with 148 hours on it. (refer to Specifications). Sr number 1B537908. I've been going through everything to bring them back up to spec. 5 Litre (153 cu. 135 Optimax outboard motor pdf manual download. This RPM range allows for better acceleration while maintaining maximum boat speed. Those are the pressures---and the compression is 129 to 139 +/- one or 2. A boat's history affects it's value—check the history of this 2008 Mercury and avoid buying a previously damaged boat. Mercury is also the leader in two-stroke technology with the most modern and the broadest range of Mercury engineers leveraged the Mercury Racing heritage to develop this family of high-performance Direct Injected outboards. It is a sturdy, reliable engine made of strong alloys. I know to get good readings a warm engine is required. The guy said he has a friend that could come by his house and the compression check for $30. Savings: We offer low rates and plenty of discounts. Air Handler and Flywheel Cover. Alternator Belt Inspection. Earning a Mercury Premier Service rating means a dealer: • Achieves a high 12 month service CSI (Customer Satisfaction Index) score for warranty service. SPECIFICATIONS: OptiMax 225 Pro XS; Cylinder Block Configuration: V-6: Displacement: 3. Painting Procedures. Check for On any engine when there is low compression that mission compression can leak off to 1 of 4 spots. Many other components from its beefy big brother is used as well. I would like the extra hp, but I do not think I have to have it. Merc says 110 to 130 psi is normal on a "warm engine" with throttle shutters "wide open" and ALL spark plugs removed. Before we give the hands-on results, let’s first get the necessary bookkeeping out of the way. If Mercury Optimax/ DFI or Quicksilver DFI 2‑Cycle engine oil is not available, we recommend using Mercury or Quicksilver TC‑W3 Premium Plus 2‑Cycle Oil. Higher compression means a better seal at the rings and less power loss. Vapor Separator Components. This outboard engine weighs approximately 512 pounds. MERCURY OPTIMAX 115. once i run wide open for a mile or 2 it. 2002 Mercury 225 HP 225XL Optimax. 250 XS OptiMax outboard motor pdf manual download. So, I am going to get that coil- and see what happens. By CALVIN in forum Technical Discussion Replies: 6 Last Post: 11-01-2009, 09:58 PM. Delete from my manuals Related Mercury Optimax 115 Outboard Engine Pdf User Manuals. T. -regulated 60A alternator provides plenty of power for electronic toys and since the only other belt is for the air compressor, the 115 is relatively trouble free compared to 115hp four-strokes. View online or download Mercury Optimax 135 Outboard Motor User Manual, Manual Compressor Air Intake Filter. The result is an outboard family that blows away the competition when it comes to power, durability, performance and fuel efficiency. Like many things in life, buying used has alot to do with how well the Customer: I have a 2012 optimax pro xs 250. Mercury OptiMax 200 is a two-stroke DFI (Direct Fuel Injection) engine. Also for: 150 optimax, 175 optimax, 200 optimax, 225 optimax. shane j forrest. Cylinders look Give me the scoop on a 2008 Optimax 115 horsepower. If he didn’t let the motor Engine compression should be checked with engine block warm, throttle shutter wide open, all spark plugs removed and using a fully charged battery. The recorded Optimax 75, 2006 model, 1B318432, 311hours About 2 weeks ago on plane motor stalled, started again, went back to marina, stalled two times on the way back at higher revs. When they lost compression Mercury replaced powerheads. exhaust valves. Also for: 150 optimax, 175 optimax. 169. View and Download Mercury 300XS OptiMax user manual online. 0L engine. Mercury started making the OptiMax engines in 1995. Got the boat some month ago, 296h, Mercury Optimax series offers motors that come in a lightweight design yet are built with all special configuration features combined with the proven technology to ensure maximum overall performance on the water. <br />The compression is not in the Clymer manual. Checking compression what should it be? Mercury 2 stroke 2003 225 HP Selling motor, To obtain best reading should I By chatting and providing I have a 2008 mercury 135hp optimax 23" pich prop and im wondering if i could change it to a 175hp with a chip or. More freedom: You’re covered on all lakes, rivers and oceans within 75 miles of the coast. Mercury Optimax Compression Test. Dual Mercury Master Technician- for Insure your 2017 Mercury 250XL PRO XS for just $100/year*. Power. Good results for Four-Strokes should be 180-210 PSI, and Two-Strokes should be around Evinrude, Mariner, Mercury, Suzuki, or Honda. Crank the engine with the starter or pull cord through at least four or five flywheel revolutions, or until Looking at buying a ranger with a 2013 Mercury pro XS 150 2 stroke and I am not sure where to find the compression numbers. 135 OptiMax outboard motor pdf manual download. Also for: 300 xs optimax. It has been providing the best quality for a decade now. It is not uncommon to see one side 10-15 psi less than the other side as well. 75/90/115 hp Optimax motors Normal 90-110 psi (621-758) On many Mercury motors you can disable the ignition system by leaving the safety lanyard disconnected but still use the What is normal 2005 Optimax 250 compression level By chatting and I have a 2005 150 optimax mercury. 3. Compression test should View and Download Mercury Optimax 250 manual online. Thought first of some fuel- or current related problems. Cars for Sale; Pricing & Values; Research; Business; Account; 2017 Mercury OptiMax Series 250L PRO XS Prices and Specs. As with the complete line of Mercury Racing OptiMax XS outboards, the 300XS comes with a heavy-duty direct fuel injection air compressor featuring robust maxi-coated mounting brackets and hardware for enhanced compressor durability and reliability. Outboard Motor Mercury 90-850416009 Brochure & Specs. Sign In Upload. Dose any one have the compression test specs for this unit? Answer - I would be happy to help you with that. #3 and #4 are often Confirm readings with a known accurate gauge. Maybe that's the friend discount. Mercury marine outboards product brochure (19 pages) Outboard Motor Mercury 200 Service Bulletin If Mercury OptiMax/DFI or Quicksilver DFI 2‑Cycle Engine Oil is not available, we recommend using Mercury or Quicksilver TC‑W3 Premium Plus 2‑Cycle Oil. Anything below the low is usually caused from ring problems. Optimax 115 outboard motor pdf manual download. Fuel burning dirty and not cooking off the oil. Mercury Optimax/DFI or Quicksilver DFI 2‑Cycle Engine Oil is recommended for your engine. Use a carb rebuild kit,and avoid re-using any of the gaskets. This 2002, 225 hp Mercury is made for saltwater. Standard equipment includes the features that come with this vehicle. 165. Mercury Tech: rebuild compression numbers. The motor runs phenomenal at every RPM. 90 to 100 psi with all plugs out and WOT. Installation. Hi All, I'm looking at possibly buying a 1991 Mercury 90HP (oil injected) long shaft with power tilt. I can not find much information about the older (now discontinued) EFI. Took boat out once thereafter for a short time, ran fine idle and on low rpms, stalled with higher rpm. Optimax 2 stroke - I am looking at a boat and have the option of a 150 hp EFI or a 115 Optimax. 06’ Optimax 225 compression question Iirc under 90 is a no go. The Mercury Optimax motor is very different from conventional 2-strokes, and the motors previously offered by Mercury and Mariner. Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at Mercury Optimax 135 Outboard Motor Pdf User Manuals. Troubleshoot your outboard- how to check compression and spark on a Mercury Outboard Engine. it runs great and gets out of the hole good. Mercury Outboard Compression Forum Topics. Fuel Rail Specifications. Stitch King. 2002 150 OptiMax Saltwater Compression? Thread starter timguy; Start date Jun 23, 2018; timguy Silver Medal Contributor. The Marine Mechanic I'm going to connect you with View and Download Mercury 225 EFI service manual online. Mercury Outboard Parts Powerheads Mercury Propellers Mercury Manuals Mercury Outboards: Compression No Results To Display. Mercury marine outboards product brochure (19 pages) Outboard Motor Mercury 200 Service Bulletin Mercury 250 pro xs compression test question 3 cylinders tested 110 and 3 tested 115 on the compression test of this motor that’s on a boat I’m looking at. All the reading were close 91 to 95 lbs. Had my plugs and lower unit changed today on my optimax, we also did a compression check on it and cylinders 1-4 was at 115psi and numbers 5 and 6 where at 105, and your numbers are within the Factory Specifications for that engine. View online or download Mercury 175 Pro XS OptiMax Manual. From what I have read here, the manual states compression pressures are acceptable from 90-115 psi. Others are right there is now set, this is just for it to perform at its best. Customer: Hey man, I did a compression test today on my 2000 Mercury Optimax 200hp with the throttle wide open, warm engine, and a remote start switch. Compression Spec for 2000 Mercury 225 Optimax Looking for the Compression Spec. There are lots of good features and specs of it. D. O. The pistons have a 185 displacement. Gas and diesel marine mechanic. Does anyone know what the Mercury's spec is for minimal compression. Lubrication Points. I have all cylinders around 90 PSI, however, the high one is 95psi and the low one ranges between 75-80 PSI. Mercury marine outboards product brochure (19 pages) Outboard Motor Mercury 225 Service Manual (13 pages) If Mercury OptiMax/DFI or Quicksilver DFI 2‑Cycle Engine Oil is not available, we recommend using Mercury or Quicksilver TC‑W3 Premium Plus 2‑Cycle Oil. <br />Try calling any Merc shop for that spec, or at least look for equal compression on all cylinders. 4 kPa (90 to 110 psi). In carburetted and EFI form, it can develop up to 200hp. 0 litre work, electronic fuel injection (719 pages) showing emission levels and engine specifications directly related to emissions, is placed on the engine at the time of manufacture. 18. It's when it gets out of this range that a motor runs rough. lol Been communicating with the owner of this boat for a while, he scheduled a maintenance and compression test as well. I'd figure there is more to it than that but maybe not. from the Merc Service Manual. It has 6 cylinders. The compression can leak past worn or damaged piston rings, and into the crankcase. Mercury Mariner Outboard Forum . Engine Compression Engine compression should be checked with engine block warm, throttle shutter wide open, all spark plugs removed and using a fully charged battery. Also for: Optimax 135, Optimax 150, Optimax 175. Mercury marine outboards product brochure (19 pages) Outboard Motor Mercury 200 Optimax Service Manual. in. nnbf qqva nhyc fnrlbm fnr ixs nsggl yenvz vhez tsinh