getblown5.9
Ceritified Kleenex Dealer
- Joined
- Aug 3, 2006
- Messages
- 7,259
What is the recommended method of welding the drive coupling on a vacuum pump gear for a waterman or other mechanical fuel pump? I've seen where some people MIG them, so I did just that. I tacked it in 4 spots, checked it for alignment and it was straight, so i burned it on by alternating sides and stitching it til it was welded all the way.
Let it cool, and now its not straight by a few thousandths. I slid the pump on and spun the gear and the pump will wobble up and down enough that if I ran it like that it would wipe the pump seals/bearings, or crack the front cover.
So anyway, I am getting a new coupler and vacuum pump and going to try again. Is it best to TIG it and keep the heat down?
Also, why does that little chunk of metal cost so damn much anyway? LOL
Let it cool, and now its not straight by a few thousandths. I slid the pump on and spun the gear and the pump will wobble up and down enough that if I ran it like that it would wipe the pump seals/bearings, or crack the front cover.
So anyway, I am getting a new coupler and vacuum pump and going to try again. Is it best to TIG it and keep the heat down?
Also, why does that little chunk of metal cost so damn much anyway? LOL