Manifold issues
Manifold issues
Author
Discussion

roseytvr

Original Poster:

1,790 posts

207 months

Monday 14th March 2011
quotequote all
Some advice please.......

When taking out the precats last year I noticed on reassembly there was quite a big gap between the manifolds and y piece, about half to three quarters of an inch. I managed to pull it in with ratchet straps but now have a crack in the middle of the four into one on one manifold. Not sure if I did it bashing out the precats or pulling it in. Whilst stripping down wishbones etc "whilst Im in there" I have taken off the manifolds to fix the problem. A couple of questions please:

1 The manifold faces are not good, they are quite pitted and getting very narrow in places. Can these be built up and skimmed or should I use some compound with the gaskets? If I use compound what would you reccommend?

2 Welding up the cracked manifold looks a bit of a PITA - is this a specialist job or can any decent welder do it?

3 Even when welded are they likely to split again when I ratchet them - is this size gap usual?

Sorry for the length of the post but any guidance welcomed!!

3024E

483 posts

214 months

Tuesday 15th March 2011
quotequote all
ROSEYTVR..


Would you believe they were actually stainless steel from the factory, but a very very poor grade....


I think most Pre-cat pipes have cracked in one way or another by now

stecozz

227 posts

194 months

Tuesday 15th March 2011
quotequote all
They can be mig welded no problem matey

roseytvr

Original Poster:

1,790 posts

207 months

Tuesday 15th March 2011
quotequote all
Ok thanks chaps welding the manifold is no big deal and I assume they will take a half inch ratchet pull to put it back togeather but what about

[quote=roseytvr]Some advice please.......

1 The manifold faces are not good, they are quite pitted and getting very narrow in places. Can these be built up and skimmed or should I use some compound with the gaskets? If I use compound what would you reccommend?

Any views?