Exhaust Manifolds studs or bolts
Discussion
Whilst I've got the heads off need to make a decision about exhaust manifolds. Is it best to use bolts again or did I read that another option is to slot the manifolds and use studs with nuts instead? Also am I looking for stainless? Any help greatly appreciated also any recommended suppliers?
Stud the bottom row and then slot the bottom holes. You can then stick nuts and washers one turn on the studs and slide the manifold into position putting bolts into the top hole. Makes it ten times easier removing them too because you only need to remove the bolts and then get a turn or two on the bottom nuts to slide the manifolds off.
ProjectChimaera said:
Thanks gents, Spaceman that sounds very sensible will almost certainly go with it.I never want to experience getting those sods off ever again with just bolts in!
I think you get a medal from the Tvr hard man Trophy cabinet for getting them babies off,,, hold on a minute,, body on or off??? I slotted my manifolds and used ARP bolts with nordlock washers.
It was supposed to be easier but putting the smaller headed bolts in the holes without the manifold was also a nightmare, especially the back ones.
I have had the manifolds off before with the bolts with the normal heads and I think the larger size was easier for me. If you have a bunch of saveloys for fingers I would say stick with the original bolts but slot the bottom holes.
It was supposed to be easier but putting the smaller headed bolts in the holes without the manifold was also a nightmare, especially the back ones.
I have had the manifolds off before with the bolts with the normal heads and I think the larger size was easier for me. If you have a bunch of saveloys for fingers I would say stick with the original bolts but slot the bottom holes.
jazzdude said:
I slotted my manifolds and used ARP bolts with nordlock washers.
It was supposed to be easier but putting the smaller headed bolts in the holes without the manifold was also a nightmare, especially the back ones.
I have had the manifolds off before with the bolts with the normal heads and I think the larger size was easier for me. If you have a bunch of saveloys for fingers I would say stick with the original bolts but slot the bottom holes.
ARP bolts are too hard for the nordlock washers. Nordlocks work by biting into both surfaces. They can get a grip on the manifolds but the ARPs just slip on them. I used a centre pop to roughen the ARP flange surfaces, that finally stopped mine from loosening. There's some photos on PH that I posted last winterIt was supposed to be easier but putting the smaller headed bolts in the holes without the manifold was also a nightmare, especially the back ones.
I have had the manifolds off before with the bolts with the normal heads and I think the larger size was easier for me. If you have a bunch of saveloys for fingers I would say stick with the original bolts but slot the bottom holes.
dogbucket said:
You can get stainless steel nordlocks which then work with stainless steel bolts
In theory, but there are many grades of stainless steel with different physical properties. What is important is that the bolts are required to be relatively softer. The ARP's are coated so the malleability of the surface is also dependant on the depth of the coating. Buying similar material doesn't guarantee anything Gassing Station | Chimaera | Top of Page | What's New | My Stuff