The part that scares me-"I'm told I need a valve job"
With just a compression test. Was that dry or wet test?

I'd do a leak down on the suspect cylinders.
If it is just a couple of leaky valves, I'd just hand lap them in.

A pair of head gaskets and an intake set (summit 91 bux) valve grinding compound (summit $4.99, lol) and a weekend, Bam done.

Dan'l

I should've been more descriptive sorry lol my buddy is a car mechanic for years we just did a dry test and now the shop I go to wants to do a wet test and leak down, and another test to isolate the problem before jumping into it. I guess I just figure it needs a valve job considering it's 27 years old and never been opened up? Is that not accurate statement?


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Those will help isolate whether it is leaking from top or bottom end. If you decide to do a valve job... while the heads are off, you can visually inspect the cylinders for wear beyond what the leak down and wet compression test shows... also can take a peek at cam and lifter wear... that way when you bolt the heads on, you know if there is anything else thatneedz to be addressed. As for a valve job... we get 240.00 for a complete valve job both heads (disassemble, clean, buff, magnaflux, check guides, check valve stems wear, grind valves, 3 angle grind seats, check and set valve stem heights, check valve springs pressures open and closed height, set valve spring install heights, and reassemble)... Plus 90.00 to surface and cc match both heads.


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Well it's bad news, all bad news... took it to mechanic today did another compression test same #5 was low, so go to pull the valve cover off, then notice a crack going all the way thru the indomar exhaust manifold, after getting the valve cover off and he determined it does need a valve job, we find metal shavings in the oil... so it looks like bearings and all that goes with it will be getting done as well.. good news I'll have a like new motor lol. My question is do u guys think I'm not smart for telling them just leave it stock just make it like new again or should I add some mild things since they're in there? TBH I'm happy doing 55-60 top speed and cruising at 45-50 and knowing it starts every time and doesn't give me problems, it's my first boat and I got 2 young kids so not gonna have much opportunities to go much faster anyway... also anyone know where I can get a nice used set of water cooled exhaust manifolds? Also u guys would agree it's not good idea to weld n fix the cracked manifold right? Thanks in advance everyone!


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