306oc - Peugeot 306 Owners Club & Forum

Used firegum paste but it just cracks. Was thinking silicon but been advised they are only rated to like 300c so I am thinking exhaust wrap? Would it work to cut it into strips or shape like a gasket as such?

I'd be looking at having the mating surfaces machined if it won't seal with paste.

EDIT:

I only say this as mine seals fine with no gasket, just used good flat surfaces and plenty of torquezz

Proper turbo gasket?

It seems flat no obvious gaps but guess its worth a go I will speak to my fabricating mate. Are the proper.gaskets expensive

thin copper sheet always worked for me as its so soft, moulds well to the imperfections in the metal

If paste doesnt work they warped to f*ck. That firegum is epic.

Dunno iv used it afew times before always seems abit Shit

I was gonna ask this exact same question when it got nearer to the time. I was gonna ask if just sanding the surfaces nice and flat would be a solution. Splodging Firegum on seems to be a less elegant and perhaps more troublesome step than might be needed. As in the OP I can just imagine it cracking or not getting an even bead and it blowing in the thinner parts. Making your own gasket out of copper seems a bloody good idea though!

I just sand the faces so there clean bang a nice thick bead of exhaust paste on bolt it up and I've never had any problems unless the faces are warped

Firegum works a treat. Don't forget stock turbos don't have any gaskets or paste. As said, just ensure the surface isn't warped and in sanded clean

Stick weld lol

I did think that padge just weld plates to turbo round outside lol

that's what id do mate, not blow again.

As said if its all faced / flat you shouldnt need anthing, but firegum normally works fine to take up any "issues"...if it keeps blowing the firegum out then you need to flat them...they must be twisted to fook...

Used a sheet of exhaust gasket material and firegum with mine, seems to have done the job.

Also don't be ragging on boost straight from the garage cos it'll blow all your efforts out the side ! Wait till its set/hard

Be afew weeks yet till it runs

Just to bring this back, what is the best grade of sandpaper to clean the mating surfaces with? It's just that, I have used 400 grit and they feel a bit too smooth? The Fire Gum needs something to bite into doesn't it? Edit to add: If I decided to use copper, does the thickness matter much? Or any fairly thin (like .5mm) sheet will do? Cheers.

Well according to this thread on the Mitsubishi forum copper gaskets melt and rust:

http://www.dsmtalk.com/forums/archive/in...11215.html

So now I have 3 options:

Genuine gaskets

Make my own from gasket sheet

Firegum

Still interested in what grade of sandpaper I should use because the surfaces do feel a bit too "smooth" for Fire gum.

Rocol Foliac graphite manganese paste

From the write up, it is hard setting but flexible which sounds ideal for this kind of thing. Temperate rated up to 600C which is good but I have read EGTs can be up to 900C but that doesn't necessarily mean that the mating surfaces will be reaching those temperatures. Also the surfaces on the manifold flange are pitted, which might mean paste is the best idea anyway. Here's a pic:

[attachment=11120]

I would get some thin fibre gasket material rated for exhaust and cut it out myself, then also gum paste it.

This kind of thing:

http://www.ebay.co.uk/itm/High-Temperatu...485b796bbb

I do wonder if it will be cutable with a Stanley though. I should probably just stick with Fire gum after all, so many options though and I don't want to take it off again! So I am agonising over a period of time, but I've got a couple weeks to go until I need to make a decision.

Edit: Just seen that is only rated to 600C again.

So yeah, as long as I can be sure that the Fire gum grips I will go with that. I am wondering how smooth the OP's surfaces were though? Perhaps if they were too polished that would lead to the Fire gum getting blown out as he was describing?

@Puggy - We used that stuff on a friends Glanza when we he TD04'd it and its done the job.