Thread: P gasket consensus 300tdi

Definitely use some quality silicon. I had to do the job all over again when I didn't use any. You don't want to have to do that.

I use hylomar #3 aka loctite #3, loctite 515 or stag.

my preference is the #3 and making sure that both surfaces are spotless, flat, dry and not shiny. Slight buffing with 300 grit wet and dry usually gets the required surface finish for the goops to work best.

When I did the p-gasket on my old Disco, I didn't use any sealer. I hate using silicon and hate it even more when I have to clean it off someone else's dodgy repair. My philosophy is that if sealer isn't recommended by the manufacturer, then don't use it!

I gave the surfaces a good scrape and then cleaned them up with wet and dry until they were perfectly clean.

The gasket was still fine when I sold the car and I'm sure it still is.

and thats a fair point as well.

but in some cases your not using the sealant for its sealing capabilities, you're using it for its anti-corrosion properties.

And I've tried all the ones Dave listed and it's still leaking


I can make things gas tight at stupid high pressures, but can't stop bloody coolant.....

Originally Posted by rick130

And I've tried all the ones Dave listed and it's still leaking


I can make things gas tight at stupid high pressures, but can't stop bloody coolant.....

HMMM, MUST BE THAT O.A.T RUBBISH....


JC

Originally Posted by justinc

HMMM, MUST BE THAT O.A.T RUBBISH....


JC

'cept I'm using a HOAT these days


Get back to work, the holiday has been too good for you

I use aviation sealant on everything used it on p gasket water pump thermostat housing a bit on hoses especially from header tank .
which I think I will replace with a alloy one.
even use it on maxi drive flanges where flange meets the hubs
highly recommended for vacuum pump which when replacing should be replaced with booster , leaking vacuum pump solved did that 80000 ks ago still no problems been 110,000ks for the water pump and p gasket
still fine