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#1
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use no sealer on the head gaskets
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#2
07-15-2008, 05:59 PM
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Quote:
I have always used a brush on type sealer around the outer edge to reduce salt creep. I like the black PERMATEX aviation grade brush on sealer myself. Silicone would be a no no on a regular head gasket. As for the original problem, it sounds like an odd one to me. I thought I remember you saying you had good compression that was even across the board. Normally major engine problems would show some wide variances across the board unless all of your rings collapsed at the same time(not very likely). I think a leakdown test is in order for your engine to make sure what the problem is.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD  AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664 
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#3
07-15-2008, 06:48 PM
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use another compresion tester. I had a guy call back after I did a buyers check on a pair of 225 Yamahas. The guy said all the cylinders on both engines only checked at 55 lbs, i told him to go biuy a new compresion guage, teh odds of 12 cylinders on two different engines all being the same amount low is pretty rare. He called back later and said his gauge was bad, he rechecked them and they were all at 125. make sure the tools you use don't lead you astray
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#5
07-18-2008, 09:39 PM
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That's with 2 different gauges? . . . sorry to ask stupid questions. It's just unusual that there's no scoring at all and your getting those readings. They must be out of round, but all 6???? I'm really curious.
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#6
07-19-2008, 06:41 AM
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Bigshrimpin, you're curious and I'm dumbfounded. I'm going to go at it again later on today and hopefully take some pictures to post. Again, overheated at high RPMs and I stopped because I saw smoke coming out of the motor. Took the covers off and the temp. sensor (the rubber part) was melting. Motor never started again. Also it will help you guys tell me if it's a 2.4 or 2.5. By the way, are they interchangeable?
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#7
07-19-2008, 07:24 AM
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2.5 weren't around until 1992 and they replaced the 2.4L motors. You've got an vertical reed old chrome bore 2.4L 200hp with the headbolts on the cylinder walls. Many parts are interchangeable on the motors. You can put a 2.5L or a 2.0L powerhead on a 2.4L midsection. The one exception is the early 175 2.0L . . . which has huge open exhaust ports.
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