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top end refresh
I have approx 400 hours on my 525 s, time for refresh ,how much should it cost and whats the best components to use?Also reccomendations on someone to do it in the upstate NY region , thanks in advance for any input
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What year motors? That will determine if the heads need to be pulled or not. |
At 400hrs, the heads need pulled. New head gaskets springs, locks, retainers and valve job.
A lot of good info here https://www.offshoreonly.com/forums/...y-hours-9.html |
I agree with griff. At a minimum heads need to be pulled. Head gaskets are notorious for leaking. On top of that valves should be inspected (reversion) and valve job. Springs need to be replaced and for the cost of lifters and rockers, I’d just replace them now. It’s cheap insurance and piece of mind. Cost really depends on who you use and how much of the work you plan to do yourself. If you plan to pull engines and dis-assemble and re-assemble you can save quite a bit of money. Engine pull and re-install is $1000-1200 alone. Parts for both engines will be around 3-4k (assuming you opt for new lifters $600-800 per engine). Labor for motor work is kind of a crap shoot. I’d figure $1200-2000 per motor if they are doing tear down and setup (I.e valve train, valve job, etc.). |
I agree with the above post, do it all. Engines will run top notch and at full rpm you wont be wondering if rocker bearings are going to explode. Also pressure check the headers, flow test/rebuild injectors and change spark plug wires.
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Saris' are in Lake George, NY. They are longtime OSO members and offshore racers too.
Performance Marine » About Us https://www.facebook.com/TeamSaris
Originally Posted by TeamSaris
(Post 4591982)
We'd be happy to talk to you as well. Tyler is a personal friend a great guy, Eddie does great work too. No reason to bash anyone. We're certainly less of a hike though...
Saris Racing Engines/Performance Marine 518-644-3080 500-1500hp with warranties. One of Whipple's original 3 dealers, in business since 1987, Mercury Racing Dealer and Premier Service Center. Good luck with whatever you do! |
Originally Posted by VoodooRob
(Post 4648343)
I agree with the above post, do it all. Engines will run top notch and at full rpm you wont be wondering if rocker bearings are going to explode. Also pressure check the headers, flow test/rebuild injectors and change spark plug wires.
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I just posted on my rebuild experience in the General Discussion section, did full rebuilds at 470 hrs one Piston had a broken ring when we did the tear down so not sure if that would have been discovered if just doing the heads??? you can PM me for pricing I was quoted but that was 2015 |
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