Tired motor ?
06-17-2008, 08:38 AM
#11
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last year I had to tune turn the idle up because it would barely run at 650 rpms. Then it would not shift out of drive being that I had it to high, I turned it down. Now it has a harder time starting at such a low RPM. This motor is a 1986 in a older 23 Powerplay. I am thinking that the motor may be getting tired... or really just the cam ? it does not burn any oil and a few years back it had some oil pressure issues and I thougth it might be the gauge and got it back to the marina and it was the oil filter. That was 2002 ?
any ideas ?
Thanks,
Steve
any ideas ?
Thanks,
Steve
thats my 2 cents
Larrry
06-17-2008, 09:00 AM
#12
Registered User
Compression test gives you a quick snapshot of whether it's a cylinder or top-end wear issue. Leakdown is a better diagnostic tool for determining where the problem lies. I always put a dial indiicator on the rockers to see if I have cam wear- it's not uncommon at all to see worn lobes on these engines.
I would not suggest a big block on an Alpha. Merc tried it and smoked alot of drives. Much over 300 horse is going to shorten the life of a fresh one. If yours hasn't been open in a while, it's safe to assume the clearances are widened- adding power is the last thing it needs.
I would not suggest a big block on an Alpha. Merc tried it and smoked alot of drives. Much over 300 horse is going to shorten the life of a fresh one. If yours hasn't been open in a while, it's safe to assume the clearances are widened- adding power is the last thing it needs.
06-17-2008, 06:47 PM
#13
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Join Date: Mar 2001
Location: BIrmingham, MI, USA
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Yes, it does have a rebuilt carb like 6 seasons ago. But I do have a Performer RPM with a adapter plate ...could that be a issue ?
Yea it may be time...to bite the bullet.
Yea it may be time...to bite the bullet.
