Engine Break In
05-05-2005, 07:08 PM
#1
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Engine Break In
I just installed my rebuilt 502MPI and fired it up...
The boat is nearly ready to get wet.
My question is how long I should run before I hammer the throttle.
The rebuild was basic, new rings, bearings, and oil pump for the bottom. And new lifters, valve springs, rockers, and a valve job up top...
I'm thinking of running it for 3-4 hours with only short bursts above 4000rpm.
Then change the oil and let her rip!
Does this sound reasonable?
The boat is nearly ready to get wet.
My question is how long I should run before I hammer the throttle.
The rebuild was basic, new rings, bearings, and oil pump for the bottom. And new lifters, valve springs, rockers, and a valve job up top...
I'm thinking of running it for 3-4 hours with only short bursts above 4000rpm.
Then change the oil and let her rip!
Does this sound reasonable?
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Patrick
Patrick
05-05-2005, 07:42 PM
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Location: Pennsylvania
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Re: Engine Break In
I am starting to break in two new engines this weekend on the water. Have already broke in the flat tappet cams on my poor mans dyno. I intend to run 5 hrs varying rpm around cruise speed but not going much above 3500rpm. Maybe just once in WOT range quick to make sure I am making the right power. Change oil, then continue same but with short bursts into the upper rpm range. At 10hrs if all is well I will change oil to synthetic and run as broken in.
BT
BT
