mercruiser 165 compression test|Engine compression test : dealer #1. "These are the results of the compression test of the 1987 Mercruiser 140 that I am buying for my boat, are they acceptable? cyl.1 dry 165 wet 180. cyl.2 dry 165 wet 180. . webConheça a Wild Thermas Club, clube e sauna gay SP. Localizada no bairro de Higienópolis. Casa com cabines privativas, dark room, sala de massagem e bar. Eventos exclusivos .
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21 de fev. de 2023 · When x is -0, or -0.5 ≤ x < 0, Math.round (x) returns -0, while Math.floor (x + 0.5) returns 0. However, neglecting that difference and potential precision errors, Math.round (x) and Math.floor (x + 0.5) are generally equivalent. Because round () is a static method of Math, you always use it as Math.round (), rather than as a method of a Math .
Re: Mercruiser 165 L6 Compression Test results if your manifold is 23 years old , when do you know when to change it . ie if it suddenly lets go, will you know , before it has let .
Compression Testing a Mercruiser 3.7 165 Hp. Engine 2-5-14 - YouTube. This is a motor that has been parted out. We decided to run this compression before a part-out just to get a.
i bought this boat that had been sitting for over a year in the weather. i sanded the points and it fired right up runs perfectly smooth but i noticed the oil looked milky after running .
#1. "These are the results of the compression test of the 1987 Mercruiser 140 that I am buying for my boat, are they acceptable? cyl.1 dry 165 wet 180. cyl.2 dry 165 wet 180. . '78 cobia open bow, mercruiser 165hp L6 motor had a severe oil leak but was otherwise performing well. I had it on the lake and everything was fine except it sputtered a . I just purchased a used 250ci 165hp mercruiser inline six. I intend to put my OMC components on the engine. I heard the engine start and run and it ran great. I then did a . 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..
A leakdown test is a FAR better indicator of the CYLINDER'S health (cylinder, piston, and rings). Just to clarify, it gives very little information on the condition of bearings. Dual Mercury Master Technician - for Mercury . I am looking to purchase and older boat that has a Mercruiser 165 6cyl. engine. Are these generally good engines? Any particular strengths and weaknesses.
Mercruiser 470 compression test. Thread starter Kauaiboy206; Start date Mar 23, 2017; 1; 2; Next. 1 of 2 Go to page. Go. Next Last. Kauaiboy206 Petty Officer 2nd Class. Joined Mar 9, 2017 . As long as its running at 165 or below on your gauge (and the gauge is correct) you should be fine. Kauaiboy206 Petty Officer 2nd Class. Joined Mar 9 . I'm looking at buying a 24 foot 2004 deckboat with a Mercruiser 5.0 Bravo 3 (260 HP) that has 715 hours on it. The compression test results were as follows: 141, 149, 131, 135, 127, 149, 133, 137. The percentage difference is 15% between the highest (149) and the lowest (127). The engine starts. MerCruiser 165 Engine Motor For sale. MerCruiser 165HP In Line 6 Cylinder 250 CID Chevy GM Motor Engines For Sale. All Are With a YouTube Video of Compression Test and Running. Speaks For Itself. Used
I did a compression test on my engine after I replaced the cyl heads back in 2017, this was done in Sept of that year. 1 160 2 160 3 175 4 165 5 160 6 165 Here are results from 8/5/2013, I had a bad overheat a few weeks before this: 1 170 2 160 3 180 4 180 5 165 6 165 and from about 10 years back, 10/30/2010: 1 165 2 170 3 180 4 185 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? Reactions: javierlopez123. Reply. Upvote 0. split172 Member. Aug 3, 2015 531 712 Orange County Name One More Boat Name Steiger Craft 25 Jun 4, 2022 #2 MerCruiser Compression Test Results. Thread starter . 0M047305. This boat is a project and I don't want to go any further if the engine is toast. I ran a compression test today and this is what I observed. Starboard side: 1. 175 PSI (dry) 175 psi (wet) 2. 115 PSI (dry) 125 PSI (wet). 3. 165 PSI (dry) 165 PSI (wet) Port Side: Exactly the same . Re: Mercruiser 165 rough idle If you overheated it there is a good chance that you have a leaking head gasket and are doing damage to the valves. The compression test (easy, if you can the change plugs you can do the test) should tell you. Autozone will let you use a compression gauge for free. Good luck.
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Low compression test on one cylinder of 4.3 L TBI I boat in saltwater and after replacement the spark plugs we verify a little water infiltration on the left side of the engine. We made a cold compression test as show below: Cylinder 1 - 165 PSI Cylinder 2 - 165 PSI Cylinder 3 - 150 PSI Cylinder 4 - 145 PSI Cylinder 5 - 220 PSI Cylinder 6 - 45 PSI Re: 5.0 Mercruiser compression readings If you haven't already done so, replace the oil and filter, next I would proceed with the carb work and any other needed tune-up items, then run the boat under load for a few hours. Keep an ear out for any unusual noises or smoking. Then repeat the compression test.
This video shows how to do a compression test on a marine gasoline sterndrive engine.
Dry/wet compression test results: Dry Wet cyl 1: 180 180 cyl 2: 162 177 cyl 3: 155 162 . MCM 165 leak down and comp. test results Just went through that! I would not wait, you probably have coolant leaking into #4 cylinder. . I haven't been able to locate any online sources for OEM Mercruiser, just Sierra on this website and another called .
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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 expla. I need some help; I have a 1981 Glastron with a Mercruiser 470, 3.7 (224ci) liters 4 cylinder. My boat has a bad misfire any time I put the boat under a moderate to heavy load. If I slowly give the boat gas it is possible to get the boat on plain but if . MerCruiser 165 In Line 6 Cylinder Engine Motor For sale. MerCruiser 165HP In Line 6 Cylinder 250 CID Chevy GM Motor Engines For Sale. All Are With A YouTube Video of Compression Test and Running. Speaks For Itself. 1993 Mercruiser 7.4L with 135hrs on it. Did a compression test to see what was what, and was surprised to find lowest at 110psi and the highest at 125psi with most at 115-120. These seem pretty low to me, but maybe that is normal for this engine. I was expecting to see around 150 or so.
Re: Mercruiser 5.0L EFI Compression Test Pistons and rings are fine. The valve seats are rusted and not seating well. Do a leak down test and listen out the exhaust make sure the cylinder is at TDC or pull the valve lash back when you do the leak down test..Stratos 3 7 Comp Check 5 15 15Compression test 140, 110, 140, 112Water also noted in cylinders.Please check with us for your used parts needs, as we part ou. I drained the oil and put fresh in. when i did a compression test all the cylinders were 120-130psi. The boat sat for two weeks but when i started it up again, it fired right up. i let it idle for a couple of minutes and everything seemed fine. the oil looked ok. revved it to 3000 rpm for a minute and the oil started looking milky.then the . Mercruiser 165 Inline 6 timing/carb adjustment? Thread starter auscarter12; Start date Sep 17, 2015; auscarter12 Seaman. Joined Jun 19, 2015 Messages 59. . Once you have the timing set properly (assuming the engine is otherwise healthy [compression etc]) you still likely have a carburetor adjustment problem.
water in oil, good compression 1978 165
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 . Re: MerCruiser 165 Starting Problems Well some good news and some bad news with the motor problem. I got the new stuff in the dist cap including the new dist. cap. The point was set to .016 inches, and the dwell meter read 32. I also did a compression test on each cylinder and they all read right at 140psi on the compression gauge.
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 between 145 and 150. I know the consistency is good just don't know how "good" the numbers are. What does a marine 350 start our life with? The motor is a 1987 with about 890 hours on the clock. Re: Mercruiser 165 straight 6 head gasket The hissing noise was heard when running the compression test on # 4, 5 and slightly on 6. It is the dead head gasket. We will pull the head tonight and see how bad the gasket is. I have already orderd the marine gasket set so no more problems with an auto gasket if that is causing the problems. Re: Mercruiser 165hp has milky oil Any compression tester I've owned has a check valve so it does not leak after the test, your only testing your static comp. A leak down test will give you a % of pressure lost over a given time (rings do not give a 100% seal, that,s why you have breathers from the rocker coves to the air filter/arrester. 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 cyclinder tested at only 90. Do i need to have my engine rebuilt? Seems like the engine runs fine but just worried because thought all cylinders should be +/- 10.
Re: OMC 165 (GM L6 250 cid) backfiring on test. i think ya can be a little off on the dist. make sure that the rotor points to #1 on a compression stroke, timing mark would be lined up and at 0, rotor pointing to #1 sparkplug. i think yer mateing a gear, not a slot. the slot would be the oil pump. 4 stoke engine:stroke 1: intake, 180*stroke 2: .This motor is a MerCruiser 165 hp, but will also replace the MerCruiser 160 hp, and 150 hp model applications. Motor has been checked out by a journeyman Mar.
mercruiser 165 compression test questions
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mercruiser 165 compression test|Engine compression test