Fitting the decat to manifold with no springs?

[Paddy_g46]

I had my manifold fitted last week but didnt use the proper fitting kit, just bolts and washers.

Is this likely to cause any problems?

 

[DrR]

Yes as the joint moves.

(At a guess)

 

[SBV116]

Yes, no flex so will be snatching, stuff will break eventually due to stress!

 

[E11OOT]

yes that joint need to be able to move as the engine moves a bit.

would get a kit off north west performance and get if fitted properly ASAP.

 

[172Ben]

Has the same effect as the flexible thing you see on downpipes i would imagine?

So it will put stress/maybe pull the manifold off from the head?

 

[f0xy]

It will just end up moving your whole exhaust system and putting stress on stuff.

Its not too bad on mine with 5 engine mounts, as there is virtually no engine movement. I use solid bolts, but then again I have a flexi joint on my downpipe that I added in just before it joins the center section - which will let it have the small amount of movement it needs.

 

[Paddy_g46]

Ah ok , I will get 1 fitted then!

 

[Paddy_g46]

Would it be fine to use the springs from my williams manifold? If so, do I just put a bolt through the engine side and then use the springs on the cat side? How tight does it want to be?

 

[sideways danny]

buy a decent fitting kit, not the cheapest one you can find, the gaskets last far less than good ones, and they're a b**ch to get to.

Bolting it up solid will just mean it comes loose due to engine moving back and forth

 

[Paddy_g46]

buy a decent fitting kit, not the cheapest one you can find, the gaskets last far less than good ones, and they're a b**ch to get to.

Bolting it up solid will just mean it comes loose due to engine moving back and forth

Well I have used a custom downpipe from a peugeot, perfect fit and used a new pug fire ring/gasket thingy. Will williams manifold springs be ok to use?

 

[f0xy]

I just use a Pug 406 2.0 Gasket - with the proper 'cups' in the manifold. Then two solid bolts with washers and nuts. I put them as tight as they will go, then I have my actual flexi joint on the downpipe lower down that was added in. As said though, ive got pretty much zero engine movement..

Before when I only had four mounts and used the springs on the joint and had no flexi joint I used to go through gaskets every trackday with the amount of engine movement..

 

[Paddy_g46]

I just use a Pug 406 2.0 Gasket - with the proper 'cups' in the manifold. Then two solid bolts with washers and nuts. I put them as tight as they will go, then I have my actual flexi joint on the downpipe lower down that was added in. As said though, ive got pretty much zero engine movement..

Before when I only had four mounts and used the springs on the joint and had no flexi joint I used to go through gaskets every trackday with the amount of engine movement..

Really?! Tbh I wont be doing anything like a trackday (not for a while anyway!) so do you think it might be ok?

 

[f0xy]

Yeah will be fine, just be like a standard 172. My old mounts were probably sh*gged too allowing more movement.

 

[Paddy_g46]

I just bought 1 of these:

http://cgi.ebay.co.uk/Peugeot-205-4...17199122?pt=UK_CarsParts_Vehicles_CarParts_SM

Is that spring assembled correctly in the pic or does that gasket need to be touching the actual exhaust?