| Re: Pesky Header Leak...Seeking Creative Alternatives !!! |
Subject: Re: Pesky Header Leak...Seeking Creative Alternatives !!! by Durango_Boy on 2012/4/26 11:44:01 Quote:
I had more leaks before I cut the flange and some manufacturers don't even use the full length flange to begin with. Really it's a quick way to get the tubes all welded to the same plain. The flange thickness is what's important so you get compression before the flange starts bending. The fact that they are all now separate makes installation and removal easier, as well as the fact that now I can change a single primary's gasket without changing any of the others. I'm so much more happy with them cut apart than I was with them as a single one piece. Matt, I am using ARP 3/8" hex head header bolts. They allow the use of a 3/8" wrench or socket which gives more room that the traditional 7/16" wrench bolts. On top of that these have double sets of a unique lock washer. They don't back out and I mean that seriously. The problem is that the bolts are typically tucked into a dimple and there isn't room to get anything all the way around the head of the bolt. That's why I dimpled them for a deep wall socket so I could get a ratchet on them. I tried Allen fasteners first and broke two Allen wrenches trying to tighten them. The extensions just had to be too long and they weren't strong enough for that kind of torque before they would twist and snap. |
