scbird1 said:The oil pump is I think a higher volume and is part of the front timming cover. The oil cooler is the same. At least the look identical.
That is what i'm wondering. i just bought one on ebay for a 94 to put in my 90. Rock auto lists the same PN for both.pomo35th said:Can the early style oil pump be swaped out for the 94-95 style pump? I'm guessing the later model would be better to have over the older ones...(swaped into a 89-93 of course)
95sc666 said:You can not bolt the 94/95 pump to the 89/93 timing cover(94/95 pump is larger). But you can bolt the 94/95 timing cover to the 89/93 block complete with pump. But the crank sensors are different for 94/95. You may be able to adapt your 89/93 sensor to fit it though. Hope this helps. Paul
Duffy Floyd said:To my knowledge you can use a 94-95 Oil pump on an earlier model SC 3.8L engine with no problems.
Thanks guys. I read something about packing the gears with vaseline (petroleum jelly) is this true? if so, how much should i pack them?MIKE 38sc said:Both Dave and Duffy are correct. You can bolt the 94-95 pump up to either the early or late model timing cover, my 94-95 pump is bolted up to a new 90 model timing cover with no issue's at all. The 94-95 model pump has 1 extra tooth on both gears not an extra gear as Duffy said. I know that Duffy meant an extra tooth instead of an extra gear, but I thought I'de clear that up incase someone did'nt understand his meaning.
do the gears come right out? sorry, but i'm just picturing it in my mind since i haven't got the new one yet.scbird1 said:I take the gears out and fill it most of the way and sqwish the new gears in and fill it to the top, bolt it on. I like to fill the oil filter with oil as well.