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oil pump gq
Posted: Tue Jan 18, 2011 6:33 pm
by blown gq
i've recently rooted yet another oil pump in my 88 gq shorty, shattered the gears to pieces. its running a 4.8L out of a gu, bored to a 5L and supercharged. im unsure if rev limiter is set (cant hear anything over the noise of the blower) so just wondering if that could contribute to the problem and if anyone else has had this problem before. cheers, bozey.
Re: oil pump gq
Posted: Thu Jan 20, 2011 8:32 pm
by PGS 4WD
I've got a set of billet oil pump gears for a 4.8 that I never used, Pm me. It's a common issue when the rev limiter is raised, superchargers can also place additional shock loads on the crank nose and pump gears.
Cheers
Joel
Re: oil pump gq
Posted: Fri Jan 21, 2011 5:31 am
by blown gq
so the billet gbears are stronger? its being looked at by a performance engines shop at the moment so i will run it past the bloke working on it and see what he rekons. he also said that there was a common problem with the oil pumps in the skyline engines which had to be upgraded when they were done up. cheers for the help mate