I have discovered a small hole in the middle of the collector on my rcm 3 bolt headers and i cant seem to find a way to get at it to repair it,i have sprayed brake cleaner down the inside of the headers and can clearly see it coming out from the middle of the collector on the outside,but how the hell do i get at it.

They must have been welded at this point during manufacture but i cant see how to get at the middle of the collector to repair them,has anyone come across this or knows how to sort this problem cos its stumped me.

 

Yep mine have cracked just there and also a couple of hairline cracks on the outside. Mine did 5years with alot of abuse so i cant complain. Cant see to clearly on the pic. Would it be possible to get a fine stick welder in there?

 

Already shown them to a welder in the fabrication shop next to sss and he says he cant do it,he welded the outsides for me but it didnt help as they are clearly leaking from the middle.

 

They must of been welded at some point, might need to cut them apart to weld that bit the re weld the rest back together but as above it isn't very clear, not very easy to see the gaps. Sometimes it's possible to extend the tig tip out a bit further to get into tight corners but don't that would work.
Short of welding it I know it's a bodge but maybe use some exhaust paste.

 

Ive had 2sets that have gone in the same place.i messed around welding for ages with my last set until i though bollocks to it and i bought a new set.

 

Yeah already been thinking along the same lines arf,i new it wernt good news when they cracked around the inside of the collector,just when you think its all done and dusted...BANG have that one in the nuts,fvckin car.

 

Can it not be got internally??

Just realised who posted this, serves you right for letting the big (not as much now) man near your car.

 

They will be welded from the inside when manufactured the only way to do it satisfactory is cut it weld it and re weld the end back on
Or sell em me cheap

 

I`ve already sourced some more so if you want them pm me an offer matey.