Sump Gasket

[Juttie205 123 2 Cars]

Am i right in thinking this goes on dry and not with any sealant as i think thats where ive gone wrong.

[Chris H 10]

You can fit it dry or with a suitable sealer as well.

 

As a suitable sealer, i'd suggest a smear of wellseal or threebond 1215 not something thick and gloopy like silicone rtv etc.

[Juttie205 123 2 Cars]

That may be problem i think i put a bead of rtv round it when i built it would you smear both sides?.

[Miles 331 1 Cars]

I would save never seal the gasket unless its a cheap one, the gasket eats into the metal and makes the seal, they do need tightening up 3 or 4 times as it compress's and check when the engine's been run, never had a leak this way

[Juttie205 123 2 Cars]

Think im going to redo strengthening plate again to be safe what sealant do people recommend.

[woodymi16 24 2 Cars]

This has worked for me

 

http://www.halfords.com/workshop-tools/garage-equipment/head-gasket-exhaust-repairs/loctite-5990-premium-silicone-copper-gasket-maker-sealant

[Juttie205 123 2 Cars]

Took sump off and i think i may have found my problem as i had sump powdercoated i never cleaned the mateing face back to bare metal.

[Chris H 10]

That would be a good place to start. clean it back to bare metal then hopefully you'll be fine

[mrfirepro 127 1 Cars]

I had a leaky sump, followed Miles advice with tightening up over a few days, never leaked since...

[Miles 331 1 Cars]

It's the old school way of thinking, thankfully head gaskets escape this these days and who would take a car back or even work on there own to spanner check it

[petert 588]

If it has a spacer plate and an alloy sump, it shouldn't have any gasket(s). Strictly metal to metal contact. I prefer ThreeBond 1211. It's specifically designed for motorcycle crankcases (high viabration). It never leaks and is easy to remove next time.

 

Only use a gasket between a pressed steel sump and the spacer plate. Spacer plate to block should be ThreeBond (or similar) only. I like to fix the spacer plate down first with some extra dummy M7 bolts. When the sealant has cured, remove the bolts and fit the sump. Pedantic I know, but it won't leak.

[Juttie205 123 2 Cars]

Thats what i did with the strengtening plate but its a gasket between sump and plate.

[JamPug 22]

I think the Haynes says smear a small amount of grease on the gasket to lubricate so it's not completely dry.

 

That's what I did with mine and it seems to have not leaked so far.

[Juttie205 123 2 Cars]

Tried another gasket and it still leaks so removed again it looks dry behind flywheel so hopefully not crank seal or hockysticks so i removed strengthen plate and the sealant seal looks crap to be honest what techniques do people recommend to but sealant on.

[Juttie205 123 2 Cars]

Having removed plate looks like my sealant has failed.

 

[PhilNW 44]

I have used loctite-si-5980-flange-sealant without problems - good for hot oil situations

[toolie72 67 1 Cars]

What could possibly be better to use than something called "flange sealant" whoopwhoop

[Juttie205 123 2 Cars]

Well have resealed plate and refitted sump so will let sealant go off and then will refill with oil so fingers crossed.