Sump sealing/mastic

[anonymous-user]

So I am replacing the sump on a TVR Speed 6 engine.
What is the difference between Loctite 598 and 5980 ?
I have done the usual searches cant really find the answer

Thanks

[tapkaJohnD]

http://docs-europe.electrocomponents.com/webdocs/0...

http://www.hitek-ltd.co.uk/media/downloads/8237/Lo...

Do those help?

And does the engine have a pressed steel sump? If leaks have been a problem, then more imortant that the right sealant is ensuring that the sealing face is flat around the bolt holes,as the DPO will have overtightened them. Use a straight edge and strong light to inspect, and if the bolt holes are domed in, a stout post and light hammer to flatten until the face is straight.

Then almost any sealant, or none, if you are confident in a good gasket, will do the job. If you must, Hylomar. You can get it as an aerosol, which makes a thin, even layer easy to achieve.

John

[HustleRussell]

tapkaJohnD said:

does the engine have a pressed steel sump? If leaks have been a problem, then more imortant that the right sealant is ensuring that the sealing face is flat around the bolt holes,as the DPO will have overtightened them. Use a straight edge and strong light to inspect, and if the bolt holes are domed in, a stout post and light hammer to flatten until the face is straight.

Thanks, I've learned something today.

[CrutyRammers]

Lots of cars now use ordinary RTV silicone. Used it on a couple with no problems.

[Boosted LS1]

I use 5980 from Halfords. It's excellent and resists higher temps.

[anonymous-user]

tapkaJohnD said:

http://docs-europe.electrocomponents.com/webdocs/0...

http://www.hitek-ltd.co.uk/media/downloads/8237/Lo...

Do those help?

And does the engine have a pressed steel sump? If leaks have been a problem, then more imortant that the right sealant is ensuring that the sealing face is flat around the bolt holes,as the DPO will have overtightened them. Use a straight edge and strong light to inspect, and if the bolt holes are domed in, a stout post and light hammer to flatten until the face is straight.

Then almost any sealant, or none, if you are confident in a good gasket, will do the job. If you must, Hylomar. You can get it as an aerosol, which makes a thin, even layer easy to achieve.

John

Thanks for posting these, I am not sure it does help. It basically says 598 is different from 5980 ? The sump is cast ally and the block is ally. It says 5980 is an adhesive ..

Thanks for posting anyway

[99hjhm]

Get some Threebond 1215. If it's good enough for Prodrive race engines....

[Belle427]

The 5980 linked to is a very good product perfect for this application.
Im guessing that there isnt much difference between the 5980 and 598, probably they have added a few more pounds for removing a 0!

[one eyed mick]

The only thing is do not use too much !it all goes to snot in hot oil and finds oil ways to go to sleep in !