Silicone?

[carguy300]

When I pulled the water pump housing off the block the other day, there was quite a bit of silicone around the ports. When going back with the new, do I need silicone, if so what type or just gaskets. I did run a thin bead on the pump in the past but never had the housing off before.

 

[CBODY67]

There should be one gasket for each side the pump, between the pump body and the cyl block. If you want cleaner clean-up next time you pull the body off the block, put a thin skim-coat of bleck high-heat sealer on the sides and all edges. It'll seal better and come off clean, from my experiences.

CBODY67

 

[carguy300]

I ordered both gaskets for housing, it came right of block so easy im not sure it had gaskets on it. Used rtv black in the past, always worked good.

 

[413]

I don’t use sealer on those if not pitted. They have a wide sealing surface. Unlike a thermostat housing which is a narrow sealing surface and often pitted.

 

[carguy300]

I will ck better, havent got pump housing yet. I know the old one had silicone oozing out all around both water ports? Dont think that was factory!

 

[rags]

what i use with these type of gaskets:

 

[CBODY67]

Factory does not use additional sealer on paper gaskets, typically. "Silicone" never was used there as a gasket replacement or additive. Only place that happened was in the middle 1970s on rear axle covers, from what I understand.

CBODY67

 

[Big_John]

I don't use silicone on anything except for a little on the corners of the intake gaskets.

I just fished some out bits of silicone out of a radiator.... Some were clogging the tubes.