mercruiser 350 compression test|Mercruiser 350 5.7 Low Compression #8 Cylinder : discounter Test each cylinder using a compression gauge and have freind turn engine over three cycles. LOG EACH READING ON PAPER. If numbers are close to each other (150, 150, .
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Did a compression test on my 5.7L 350 mercruiser and I had 175psi across all cylinders accept for one cylinder at 180psi. Is this acceptable?
Mercury MerCruiser Sterndrives & Engines. All, I'm looking at a boat that has full inboard Mercruiser 350 / 260. (not I/O) I had the compression checked and all cylinders were . If you have a compression gauge, remove the valve stem and insert the hose as if you were doing a compression test. Connect the hose to a compressor and use the .
The best way to do a compression test and a leak-down test, demonstrated on my boat's Mercruiser (Chevy-block) engine. Good demonstration with lots of explanation and helpful tips..
I was hoping to find out what the compression should be on a 350 Magnum engine with the alpha drive. The year is a 1996. I went to check out a boat today and the . Test each cylinder using a compression gauge and have freind turn engine over three cycles. LOG EACH READING ON PAPER. If numbers are close to each other (150, 150, . I bought my 94 PS 190 with 350 TBI in 2013 and have found in doing several compression tests since then that No. 7 pretty consistently tests a little lower than the other .
This video shows how to do a compression test on a marine gasoline sterndrive engine. New to iboats forums and had a question on compression for my 1994 donzi 21 5.7 mercruiser engine. Did compression test and results were 115, 120,110,115,119. but 1 . In the process of purchasing a 2000 Sea Ray 260 with a Mercruiser 5.7 EFI. Engine has approximately 850 hours. The mechanic did a compression test first thing this .
In the process of purchasing a 2000 Sea Ray 260 with a Mercruiser 5.7 EFI. Engine has approximately 850 hours. The mechanic did a compression test first thing this morning before we launched the boat and got the following: Cylinder 1: 135 Cylinder 2: 160 Cylinder 3: 130 Cylinder 4: 160 Cylinder 5: 135 Cylinder 6: 135 Cylinder 7: 155 Cylinder 8: 155MerCruiser 350 MAG MPI Specifications. Propshaft Horsepower: 300 (224 kW) Displacement (Liter/CID): 5.7L/350 Cylinders: V-8 Bore & Stroke (inches/mm): 4.00 x 3.48/101 x 88 Compression Ratio: 9.4:1 Fuel System: MPI Full Throttle RPM Range: 4600-5000 Ignition Type: MEFI/EST Digital Alternator (amps/watts): 65/917 Length (inches/cm): 37/94 Width . I didnt realize that Im supposed to test the rings using regular motor oil when doing a compression, I used WD40 instead, Cyl 4 jumped to 110 and 3 went to 110 also, none of the other changed when using WD40. I will have to re-check with an oil squirter. Its a '90 stock 454bbc by Hardin Marine 4-bolt. Mercruiser Service Bulletin 97-25 that says on each cylinder a minimum of 100 psi and at least 70 percent of pressure on the cylinder with the highest pressure. I checked compression on another 94 PS 190 with 350 TBI when I was shopping in 2013. That was with a different compression gauge. As I recall, I got about 175-185 on the cylinders on .
Mercruiser 4.3L Compression Test. Thread starter Roadblock007; Start date Jun 14, 2017; Roadblock007 Petty Officer 2nd Class. Joined May 24, 2017 Messages 142. Jun 14, 2017 #1 Test driving a boat this Friday and will be doing a compression test obviously. The service bulletin says to remove the ignition coil wire and ground it to the grounding . 1992 Sea Ray 350 Express Bridge Engines 454 Mercruiser CI. I have a 1992 Mercruiser 454 with 1300 hours. It burns zero oil and seems to run strong, besides an oil pump issue. My mechanic did a compression test and got the below results. . Compression test on twin 350s revealed one or 2 cylinders with low compression. Every mechanic I talked .
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The only problem with my Mercruiser 350 MAG MPI with serial numebr 0M627854 is It will not go above 3000 RPM. It was fine just 2 months back and could hit 4800+. Running at 10MPH all day just isn't fun. . I also did a compression test and got the following values, Cylinder PSI 8 175 6 165 4 168 7 173 5 165 3 160 I was hoping to find out what the compression should be on a 350 Magnum engine with the alpha drive. The year is a 1996. I went to check out a boat today and the compression was all over the place. On the left hand side they were 150, 140, 150, 140, but on the right side they checked out at 120, 120, 80, and 80. Sounds like problems await. Compression test mercruiser 350 magnum. Discussion in 'Sterndrives' started by rossmon1, Jun 23, 2006. Joined: Jun 2006 Posts: 6 Likes: 0, Points: 0, Legacy Rep: 10 Location: Marin County, California rossmon1 Junior Member. I am checking out a 1986 boat and was wondering if anyone had a spec for good compression reading on the 5.7l 360 motor. . I have a 2003 Maxum 2700 with a 350 Mag MPI Serial #0m643181 I've replaced plugs, wires, cap, rotor, and cam position sensor. All with Mercruiser parts. I've done a compression test and all cylinders are good. I checked the fuel injectors with a cheap amazon tool and all injectors flow the same.
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Attach the compression test adapter into the cylinder nearest the front of the engine, then connect the gauge to the other end of the adapter hose. To perform the test, crank the engine 4 times by turning the key in your car’s ignition, then check the compression gauge for the result. After you get a result for the first cylinder, repeat the . Doing a compression test, is a good way to measure the condition of, the rings, cylinders, and valves. So, if your engine is running rough or is lacking power, consider doing a compression test. Also, it is important to perform a compression test every time a tune-up is done, as part of preventative maintenance.
Engine is a 2002 Mercruiser 350MAG MPI . NHGuy Captain. Joined May 21, 2009 Messages 3,631. Apr 27, 2010 #2 . you can start with a compression test, running the motor and with foaming oil looking for an intake leak, and hook up a temporary outboard style fuel tank with known fresh gas. . Fuel injected 350 MAG MPI backfire. any suggestions .
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Mercruiser 5.7 Compression Test
MerCruiser® knock-control sensor that instantly warns the electronic system to adjust the spark timing for added protection across a wide range of fue; High-flow cylinder heads that provide up to 15 percent greater horsepower with no increase in base engine size. Here's how to do a compression test on your Mercury outboard 2-stroke engine. Or download a repair manual instantly here. . [ August 9, 2018 ] DOWNLOAD MerCruiser 350 Mag MPI Service Manual MerCruiser Repair . I am interested in buying a boat with Mercruiser 350 MAG mpi., ran for 300h, good service history. the engine is 10 years old (2008 model) however i dont have previous experience with Sterndrive engines. . Should be more like 4400-4600. Compression test results are OK. Oil pressure @ idle (think you meant 57?) is usually 40 cold engine but .
Captain's reports and/or test numbers for this model are archived. . Axius 350 MAG MPI (300-hp) (2008) Brief Summary. . Axius by MerCruiser. By Capt. Rob Smith Pod drives created a lot of excitement when they were originally .
Captain's reports and/or test numbers for this model are archived. . Mercury Marine’s MerCruiser 350 MAG is one of the most prolific engine platforms used to propel vessels under 35’ (10.7 m). Whether in single or twin-engine applications, this power plant has seen it all. The newest model incorporates Emission Control Technology (ECT . When you get to the part when i narrate then please turn up the volume. And i dint know why my voice was so high and quiet. Must be a bad mic. Thank You 5.7L 350 Compression Test. Jump to Latest 54K views 8 replies 8 participants last post by Hoss4x4 Apr 8, 2004. D. DeanHensler Discussion starter 724 posts
Mercury MerCruiser Sterndrives & Engines . 6.2L MPI compression test help . and having the survey done this weekend. (0.00)not sure why the surveyor won't do compression test, but he reccomended I have the shop do it. The shop wants 0.00 to perform a compression test. . on an old chvy 350.How hard is it to do this .
Fuel doesn’t flow through that regulator, as it’s at a “dead end”. It’s located at the end of the fuel rail with no return line. In an automotive application, with the regulator located at the end of a fuel rail, there would be A return line attached to the regulator to allow excess pressure to bleed off and be returned to the tank Engine is a Mercruiser Mag 350 Ski MPI with 300 hours since new connected to a v drive in a Tige ski boat. Engine is down on power & idles poorly. Installed a new set of plugs and carried out a compression check. Number 2, 3 & 5 cylinders only show 50 psi all the rest are at 170 psi. Squirted some oil in 2,3 & 5 and tried the compression check .
I have a 2001 Mercruiser 350 Mag Horizon engine that received a valve job last summer and was running okay, but now it does not turn over past 3200 rpms. The mechanics at my marina took a look at it and seemed to be baffled as to the cause. . Also you may want to do another cylinder compression test to ensure everything is still working . recently had a presecptive buyer do a compression test on my 350 (2001) 250HP.. when I bought the boat a few years ago we checked the compression and it was . 5.7 mercruiser Compression-gctid422961. Collapse. X. Collapse. Posts; Latest Activity; Photos . Page of 3. Filter. Time. . I then did another compression test on a cold motor and the . 5.7 mercruiser Compression-gctid422961 10-15-2012, 06:52 AM. recently had a presecptive buyer do a compression test on my 350 (2001) 250HP.. when I bought the boat a few years ago we checked the compression and it was 160 across the board (from what I recall). The guy that did it this time says it was 190 across with two holes being down to 160. a compression test wont confirm engine work that needs to be done. the size of the camshaft in relation to the compression ratio of the engine could very well create 110 psi in an otherwise healthy engine, with the only problem is that the cam is entirely too big. what you need is a cylinder leakdown test to tell you exactly what is wrong with it.
Mercruiser 350 compression numbers
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mercruiser 350 compression test|Mercruiser 350 5.7 Low Compression #8 Cylinder