Replacing Mechanical Fuel Pump Right Now - 2 Questions

[road robert]

1. Do I need to put anything on the paper gasket?
2. Should the 2 bolts that secure the fuel pump have washers and/or lock washers?

Thanks!

 

[beanhead]

I like blue Hylomar for gaskets but whichever sealant you prefer is fine as it's only exposed to non-pressurized oil. Use a flat washer if using a standard hex bolt.

 

[Lionized]

I like blue Hylomar for gaskets but whichever sealant you prefer is fine as it's only exposed to non-pressurized oil. Use a flat washer if using a standard hex bolt.

Additionally, I only use sealant on the pump side, simply ensure the block surface is smooth and clean (like our rocker covers).

 

[66Satellite47]

An option is a very thin layer of RTV, no gasket. Or spray Permatex red, light coat on the pump side of the gasket.

 

[Nate S]

I’ve never used any sealant on these, nor did the factory. The gasket is, after all, a gasket.

 

[Big Bad Dad]

If I recall correctly, doesn't a big block use special bolts for mounting the fuel pump? Thick washer heads with a reduced hex for clearance? I have never used any other washers on them.

 

[RemCharger]

If I recall correctly, doesn't a big block use special bolts for mounting the fuel pump? Thick washer heads with a reduced hex for clearance? I have never used any other washers on them.

yes they do, and they have a nylon insert in the threads for locking them in.