bornloser_182

I have been searching for a while now and can't find a diagram of how the LS7 dry sump oil system is routed or how it works. I have just gotten pieces of information.

Here is where I am at:

There are 2 oil pumps in the dry sump system. I know on is behind the front cover but I dont know where the second one is.

The dry sump pulls oil from the sump tank but does the sump get filled with from the oil pan via the oil pump behind the front cover? If that is the case where is the oil pump for the sump tank? Any info would be great. Thanks.

rkj427

here's a diagram to get you started........... do you have a GM Service Manual for your car........

Dan_the_C5_Man

Both the pressure and scavenge are in the same physical assembly, driven from the crank snout.

rjacobs

what Dan said.

Only 1 physical pump with two gearotors in it.

MTBSully

unrelated, but how does the timing chain get its lubrication? Was thinking about that during my cam swap last week.

jft69z

Here is the operational description of the LS7 lube system.

bornloser_182

Thank you all for the info. I was getting confused as to where the two oil pumps are physically, but now it all cleared up. Thanks again.

jft69z

Here is what the pump looks like:

MyLS1Hauls

It is just splash lubed...Oil comes out of the front cam bearing, and also out of the front main bearing, and gets slung by the spinning assembly.