it is my opinion/understanding not to use any additional sealers on a gasket bc its weaker than a gasket, forming a weaker seal/leak, and it lets the gasket "wiggle" or squeeze out from beneath the gasket, also resulting in leak. Just a drop on the gasket to hold it in place, if necessary. But, if the mating surfaces are in poor condition, then a sealer on the gasket may help by filling in the irregularities and a better seal.Also, if you must use the paper gasket, unless it’s a Fel-Pro with a printed sealing bead, Permatex high-tack or Aviation Form-A-Gasket on both sides of the gasket will be your friend. If it’s a Fel-Pro, only apply dope on the “naked” side towards the pump.
The reason for this is the paper gasket will eventually stick, Permatex’s high-tack/Aviation claims to keep a “soft-set” and not “dry” so it’ll make life easier for repairs.
If the gasket is made of metal or cork, then that’s true, especially cork gaskets that need to swell a bit to seal.it is my opinion/understanding not to use any additional sealers on a gasket bc its weaker than a gasket, forming a weaker seal/leak, and it lets the gasket "wiggle" or squeeze out from beneath the gasket, also resulting in leak. Just a drop on the gasket to hold it in place, if necessary. But, if the mating surfaces are in poor condition, then a sealer on the gasket may help by filling in the irregularities and a better seal.
Thank you-If the gasket is made of metal or cork, then that’s true, especially cork gaskets that need to swell a bit to seal.
But for paper, then you want sealer on at least one sealing side. I’ve put sealer on a Fel-Pro paper diff gasket on both sides, one to seal and to hopefully make removal a bit easier, no issues yet.
Just to be clear, I am installing the Aisin pump which requires a FIP gasket/sealant. If I went with the NPW pump, I probably wouldn't use any goo as the gasket it came with is pretty dense/substantial. I figure the original pump lasted *at least 180k miles (replaced with a lesser pump during rebuild, ugh) so I'll go with what I know works-even though NPW makes good stuff too.Thank you-
I dont mean to be argumentative and just being curious, but a FEL-Pro tech support guy just told me they do not recommend use of any sealant on ANY gasket except head gaskets (copper ). If it works for you to use some, then go for it.
Walmart.com.Where did you buy the Aisin pump from?
No worries.Thank you-
I dont mean to be argumentative and just being curious, but a FEL-Pro tech support guy just told me they do not recommend use of any sealant on ANY gasket except head gaskets (copper ). If it works for you to use some, then go for it.