- 1. drilling exhaust manifold (score: 1)
- Author: Calvin Krug <ckrug@laf.cioe.com>
- Date: Fri, 2 Jul 1999 17:51:57 -0600
- I'm hoping one of you mechanical-types can help me out. I recently had a steel exhaust manifold flange welded, and now I'm trying to redrill the hole for the stud. I can't find any drill bits that wi
- /html/mgs/1999-07/msg00089.html (7,205 bytes)
- 2. Re: drilling exhaust manifold (score: 1)
- Author: Art Pfenninger <ch155@freenet.buffalo.edu>
- Date: Sat, 3 Jul 1999 12:19:09 -0400 (EDT)
- Start with a very small bit and work your way up to the correct size. Be sure to use new bits. ...Art
- /html/mgs/1999-07/msg00107.html (7,591 bytes)
- 3. Re: drilling exhaust manifold (score: 1)
- Author: Ross MacPherson <arm@bc.sympatico.ca>
- Date: Sun, 4 Jul 1999 09:40:09 -0700 (PDT)
- Calvin, The weld/air-cool cycle has hardened the steel. Use a MAPP or Oxy/Acetelyne torch to heat the area you want to drill to cherry red then quench with water. Submerge the part in a bucket if pos
- /html/mgs/1999-07/msg00146.html (7,703 bytes)
- 4. RE: drilling exhaust manifold (score: 1)
- Author: Brian Boss <boss@fastlane.net>
- Date: Sun, 4 Jul 1999 15:21:51 -0500
- I would agree with the other poster about starting with a pilot hole, perhaps about 1/8". If that doesn't work, tungsten carbide drills are available but very expensive. You could also try annealing
- /html/mgs/1999-07/msg00154.html (7,832 bytes)
- 5. Re: drilling exhaust manifold (score: 1)
- Author: Matt Pringle <pringlmm@mcmaster.ca>
- Date: Mon, 05 Jul 1999 08:20:10 -0400
- Drill a pilot hole the same (or slightly larger) than the diamter of the final dril bit that is not fluted. If your final bit is large, this may take a couple of passes with different bits, each empl
- /html/mgs/1999-07/msg00180.html (7,633 bytes)
- 6. Re: drilling exhaust manifold (score: 1)
- Author: Ross MacPherson <arm@bc.sympatico.ca>
- Date: Wed, 7 Jul 1999 19:31:04 -0700 (PDT)
- Please disregard everything I said about softening your manifold. I gave you a good example of how to actually make it harder (!) My most humble apologies, never listen to anything I ever say again
- /html/mgs/1999-07/msg00301.html (7,219 bytes)
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