502 Mpi
06-14-2004 | 09:24 PM
#1
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Joined: Jun 2004
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From: NORWAY
502 Mpi
I am going to buy a used engine. It`s a 1996 502 MPI (Gen VI) 390 hours, it`s only been run in fresh water. Any thought on this engine? Good/bad, look out for, differences from the next model? When did Mercruiser change this model? 
06-14-2004 | 11:39 PM
#2
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Re: 502 Mpi
Have a leakdown test performed and Dynoed before you buy it. Thats up there in hours,especially if a real throttle jockey ran it.I think it was the same until the 496 came out. Buddy has a 1999 powerquest with 502mpi.
06-15-2004 | 12:08 AM
#3
Charter Member #1171
Joined: Feb 2001
Posts: 4,018
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From: Clearwater, FL
Re: 502 Mpi
With care and good maintainence, you can get twice the hours out of that engine. I agree, do a compression and leakdown test. If all looks good, go for it.
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