Author Topic: Cracked stator cover  (Read 1284 times)

0 Members and 1 Guest are viewing this topic.

Offline Madseacow

  • Full Member
  • *
  • Posts: 23
Cracked stator cover
« on: June 11, 2014, 09:51:24 AM »
Any good ideas on a method to repair a crack in my stator cover?



Offline lucky

  • Really Old Timer ...
  • *******
  • Posts: 6,715
Re: Cracked stator cover
« Reply #1 on: June 11, 2014, 10:32:00 AM »
Any good ideas on a method to repair a crack in my stator cover?

TIG welding.

Offline ekpent

  • Really Old Timer ...
  • *******
  • Posts: 13,508
  • To many bikes-but lookin' for more
Re: Cracked stator cover
« Reply #2 on: June 11, 2014, 12:50:30 PM »
What kind of bike. Unless you can do it yourself and have all the stuff or have a friend who does it may be cheaper to replace it with a good used example.

Offline Stev-o

  • Ain't no
  • Really Old Timer ...
  • *******
  • Posts: 34,701
  • Central Texas
Re: Cracked stator cover
« Reply #3 on: June 11, 2014, 03:54:48 PM »
Any good ideas on a method to repair a crack in my stator cover?




Replace it. 

Are you Kyle?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Mini Mo

  • Full Member
  • *
  • Posts: 78
Re: Cracked stator cover
« Reply #4 on: June 11, 2014, 04:20:32 PM »
I have a tig at home and have welded several of these with great success. It is important to make sure it is absolutely clean. Wash the part thoroughly, then heat the cracked area to boil out the rest of the oil residue. Use a small propane torch or even a heat gun. Wipe with acetone or lacquer thinner and repeat the process several times until nothing else boils out.

Take a very small drill bit and drill a hole on both ends of the crack. This will prevent the crack from spreading. You can also take a small die grinder or Dremel and grind a groove right along the crack. Heliarc it and away you go. Any competent welder can handle this. Make sure he welds both the inside and out. Finally file down the outside weld and polish it. Good as new.

Or buy one on ebay and hope it's not cracked either  ;D

BTW you will need to pull the stator windings out!
750 K1 (Just finished)
750 K4 (In Process of resto)
2) 750 K6's (Restored and sold)
750 K5 (Restored and sold)
'75 850 Norton Commando (Restored and sold)
'99 Triumph Tiger (Daily rider)

Offline Madseacow

  • Full Member
  • *
  • Posts: 23
Re: Cracked stator cover
« Reply #5 on: June 11, 2014, 10:25:16 PM »
Found a replacement at a good price and local. Thanks for the help. Hope the stator isn't hard to remove.



Offline Stev-o

  • Ain't no
  • Really Old Timer ...
  • *******
  • Posts: 34,701
  • Central Texas
Re: Cracked stator cover
« Reply #6 on: June 12, 2014, 05:49:40 AM »
Found a replacement at a good price and local. Thanks for the help. Hope the stator isn't hard to remove.





Not hard if you have an impact wrench.   You'll need a new gasket of course and expect a little oil in there (normal). 

Time for a oil change?  If not, you can lean the bike over to the right and let it set against the wall.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline MCRider

  • Such is the life of a
  • Really Old Timer ...
  • *******
  • Posts: 14,376
  • Today's Lesson: One good turn deserves another.
Re: Cracked stator cover
« Reply #7 on: June 12, 2014, 05:54:53 AM »
Found a replacement at a good price and local. Thanks for the help. Hope the stator isn't hard to remove.





Not hard if you have an impact wrench.   You'll need a new gasket of course and expect a little oil in there (normal). 

Time for a oil change?  If not, you can lean the bike over to the right and let it set against the wall.
I've found that if you shim the pedal on the centerstand by not much, 1/2+ in or so, that's enough of a lean to get the alt cover off with minimal drips. Just did it a month ago. Still need a catch pan to be sure. Once leaned, let it sit for 20 minutes or so, so the oil can drain out of the cover into the crankcases.
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."