Mike94ZLT1

iTrader: (3)

It just seems odd to me that the oil pump bolts directly to the block, and no gasket or RTV goes around the hole where oil goes from the pump to the block. My new block has some scratches around there, should I put a light ring of permatex around it? It's already together but I don't have the balancer on yet, so it would still be easy at this point.

DONAIMIAN

iTrader: (18)

Ive never heard of anyone doing this. Hopefully some of the more experienced engine builders will come in and comment on this.

KCS

iTrader: (20)

Isn't there supposed to be an O-ring there?

Ferocity02

iTrader: (60)

There is no o-ring, I think there should be. I always use some RTV, not too much though.

sroach20

iTrader: (31)

never have needed it. didnt need it on the old school engines and dont need it now. i know some of the fords used them though.

Dan_the_C5_Man

No no no! Leave it alone! You have two highly machined surfaces, no gasket or RTV required! This is oil you are pumping, not air. If you are saying the mounting surface on the block is damaged, that's a different story.

studderin

iTrader: (28)

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Mike94ZLT1

iTrader: (3)

It wasn't too bad, I put a dab of permatex on my finger and rubbed it around. Super thin layer, enough to make up for the scratches I would say.

GuitsBoy

iTrader: (4)

I'd install it dry. The surfaces are precision machined and finished. I wouldnt chance a thin layer of rtv skewing the pump out a thou or two.

Mike94ZLT1

iTrader: (3)

The block has alot of scratches in that area. The pump is back off, I will post a pic and see what you guys think