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Originally Posted by DollaBill
(Post 2792891)
525's = Great engines
Dealer who says they are cantankerous = DUMBAZZ Is it a Bayliner dealer that has one performace boat to sell? |
I'd love to know who it is "off the record" of course. PM me. Hope it all works out
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Had a pair of 525's in last boat and rebuilt both one 200 hrs, the other 300 hrs, Every problem I had with these motors were related to water from the headers leaking. CMI headers leak, you have to drain them every time out and test at least once a season. Other than that they are awesome motors!
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Alot of consumers are probably going to be happier w/ the 8.1's (not on this site though:cool-smiley-011:) The 525's idle isn't going to be as sweet as even a carb motor with the same cam because of the reversion into the intake at idle upsets the MAP sensors ability to read a coherant signal. The bigger problem for most that just want to enjoy a boat is the high spring pressures........200hrs between top end overhauls for a motor that $$$$ is pure enthusiasts territory. I think merc missed an easy chance to make the 525's a 500hr motor(and more reliable)...their propriatory heads should have had a 280-290cc higher velocity intake port, a cam profile that required maybe 370# of spring over the nose instead of 450# that has been tearing everything up (valvetrain wise) in the blue motors. A simple, cheap fix for now would be to adapt some PAC beehives to your heads; I would bet anyone that you would add 100-200 hrs. between top end overhauls. Take Care, Dave
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Originally Posted by liquidlounge
(Post 2793041)
Alot of consumers are probably going to be happier w/ the 8.1's (not on this site though:cool-smiley-011:) The 525's idle isn't going to be as sweet as even a carb motor with the same cam because of the reversion into the intake at idle upsets the MAP sensors ability to read a coherant signal. The bigger problem for most that just want to enjoy a boat is the high spring pressures........200hrs between top end overhauls for a motor that $$$$ is pure enthusiasts territory. I think merc missed an easy chance to make the 525's a 500hr motor(and more reliable)...their propriatory heads should have had a 280-290cc higher velocity intake port, a cam profile that required maybe 370# of spring over the nose instead of 450# that has been tearing everything up (valvetrain wise) in the blue motors. A simple, cheap fix for now would be to adapt some PAC beehives to your heads; I would bet anyone that you would add 100-200 hrs. between top end overhauls. Take Care, Dave
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Originally Posted by DollaBill
(Post 2792927)
I'd love to know who it is "off the record" of course. PM me. Hope it all works out
Yeah me too. Baton Rouge area dealer? |
LAriverratt:
Question? Are you pricing a new boat with various power packages or are you lookin at particular boats from dealer inventory or used boats with existing power? With this input I will be happy to give you some price levels based on what your plans are. Best Regards, Ray @ Raylar |
Pac Beehives
I have twin 525's with 130 hrs ..what should i be listening / looking for ?? and what are PAC Beehives ??
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PAC Beehives are valvesprings. See www.racingsprings.com Part#1520 would probably be a good spec for the Crane HR lobes. The 525 heads will probably have a 1.55" spring pocket (NEED to VERIFY this!!) so you will need to use an appropriate spring locator or spring cup. PAC will get you set up. Good Luck, Dave
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Thanks liquid ...got any input on what to look for in a 525 ?? I recall being told not to run high octane in my 525"S just 89 ..am i dilusional ??
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