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I am installing a new fuel pump. The new fuel pump came with a gasket. This gasket is for where the pump mounts to the engine.

Q: Can I just use the gasket, or do I need to use the gasket + silicone?

Thanks!
 

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You wouldn't use silicone sealant on any gasoline fitting. Gasoline will curdle and release it. If the gasket is felt or paper or cork, you might use a gasket dressing that is rated for gasoline immersion (continuous exposure) but if it is a plastic or rubber type material, no gasket dressing/sealer is usually needed.
 

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Throw the mechanical fuel pump away, or just use it without the actuating rod to seal the hole. Then buy a good electric fuel pump (maybe a spare and install it with a really big drainable fuel filter. No more than 3-5 psi will be fine.
 
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