9milphil

Place? - I am taking mine to get welded tomorrow and i am worried about getting just that one HOLE - and it is a fairly big one- fixed or should I pull off the whole heat shields from both and inspect further? if this manifold breaks in the same place always then I wont even bother with having the 1/4 inspected - as it didnt seem to leak-...hmmmmm
- also any suggestions- other than a torch- on how to get off the heat sheilds in a salvageable manner? -
THanks again - and if it werent for ya'll I couldnt afford this sled!!!
9 <img src="graemlins/drink.gif" border="0" alt="[cherrsagai]" /> -now that that is over - cold unit time!!

Alan C.

I have 2 sets of headers and both of them broke in the 2-3 ports. In fact, both sets of fractures looked almost identical. Both of the 1-4 sections were ok.

I also found a crack in the weld on the turbo downpipe.

Alan

Dave E

I found my 2-3 cracked at the juncture where the two pipes meet. I thought I read somewhere that the repaired header will last longer if the header nuts (at the head) are installed snugly only, maening a much lower torque spec.Allegedly this allows for some expansion of the head without stressing the header as much.I had to ovalize the bolt holes in the flanges to allow for this differential in expansion between the head/header. I tried this on my 86 951 and it seemed to work. I only got to test it in the short term (700 mi.) the car got totalled by a drunk driver ,(no, not me!!)BTW I did remove the heat shields to weld all the cracks,I drilled out all the spot welds and used a really sharp putty knife to separate the shields. If you do this, you may want to be careful of the insulation under the shields, I don't know for sure, but it probably is asbestos. The cracks in the header were visible when I looked inside it from the downstream end, so if you don't see any when you look there you might be all set.Good luck, and let us know how it goes...