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Stuck Armature
Stuck Armature
Having a tough time getting the armature of my R27. I have Vech's tool. Did the tighten, hit bolt head a few times, tighten, hit a few times thing until the tool bent. So, I need a plan B. I straightened the tool now need ideas. Heat has always been my savior in stuck part problems but the armature looks unfriendly to it. Not knowing, but imagining, how the armature fits onto the crank end what if I tighened the tool up and put heat to it. would the heat get to the right place to break the bond in there but not hurt anything? Am I worried about heat on the armature needlessly?
Cycle works suggests a slide hammer on the tool as a last resort but this seems like it would be really bad for the bearings- but you gotta do what you gotta do.
Opinions?
once again, thanks
61 R27 and boy do I need parts-- got any?
Oh no, wifes coming home- get the engine out of the oven!
"Are those bearings in the freezer?!" she calmly inquired
- schrader7032
- Posts: 9057
- Joined: Fri Oct 27, 2006 3:00 am
- Location: San Antonio, TX
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Ouch! The "tool" was a piece
I doubt you can get much heat in the proper area to do any good. As you said, I'd be very concerned about heat getting to areas that it shouldn't.
What about some Aerokroil or PBBlaster? You need to get between the front of the engine case and the rear of the rotor to spray the fluid. If you can do that, maybe a liberal dose would finally work to where it needs to be.
Beyond that, I'd call Vech or Richard at Bench Mark Works for some suggestions. I'm sure they deal with all the time. The taper connection on the front of the crankshaft must have some corrosion on it. Heaven forbid that the PO used some kind of loctite...
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
I just went through the same
I think I got lucky, stopping
So, I want to get a penetrant behind the armature? Would spraying any into the place the bolt goes help also? If anyone has a photo of the end of the crank and back of an armature so I can visialize how they go together I would be truly appreciated. This a completely a friction fit, no key?
61 R27 and boy do I need parts-- got any?
Oh no, wifes coming home- get the engine out of the oven!
"Are those bearings in the freezer?!" she calmly inquired
- schrader7032
- Posts: 9057
- Joined: Fri Oct 27, 2006 3:00 am
- Location: San Antonio, TX
- Has thanked: 3 times
- Been thanked: 36 times
I'm not sure if the R27
http://www.airheads.org/content/view/194/98/
shows how to make a rotor removal bolt. The graphics give a good idea of where the taper is and the fit up. Given this, it looks like you could flood the area where you put the bolt and it should work its way into the taper. I always thought you could only get to the taper from the very back of the rotor.
Rick has pictures of /5-on rotors on his website:
http://www.motoelekt.com/charging.htm
You can get a sense of the back end of the rotor. I'm not aware of good sources for pictures of R27 electrical parts.
Maybe you could get a hold of Barrington Motor Works and see if they can give you some pictures or ideas on getting at this taper.
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
Picture
If you want any specific pictures let me know, while the bike is in pieces!
OK, looks like the fit is
Thanks
61 R27 and boy do I need parts-- got any?
Oh no, wifes coming home- get the engine out of the oven!
"Are those bearings in the freezer?!" she calmly inquired
- schrader7032
- Posts: 9057
- Joined: Fri Oct 27, 2006 3:00 am
- Location: San Antonio, TX
- Has thanked: 3 times
- Been thanked: 36 times
Hopefully it wouldn't take
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
OK-makes sense. It's not an
61 R27 and boy do I need parts-- got any?
Oh no, wifes coming home- get the engine out of the oven!
"Are those bearings in the freezer?!" she calmly inquired