Front Armature Bushing Removal

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neonwall
Posts: 17
Joined: Mon May 21, 2018 7:27 pm

Front Armature Bushing Removal

Post by neonwall » Fri Jun 01, 2018 6:02 am

Evening all, quick question has anyone got a good idea on removal of the bushing in bendix housing?

I pulled my starter apart as there was excessive play in armature shaft, which had caused the teeth on my flywheel to be chewed up assumably as it wouldn't engage properly when thrown forward. Turns out bushing on its way out as part of the inner lip already falling away.

Also recommendations on bendix teeth? Serviceable? or get a new one

Thanks in advance! Images attached

Regards

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1986 BMW R80RT

Beemerboff
Posts: 48
Joined: Thu Feb 08, 2018 12:11 am

Re: Front Armature Bushing Removal

Post by Beemerboff » Fri Jun 01, 2018 6:50 pm

Good cheap Valeo knock offs are around.
EME and Moteren Israel sell them with a decent warranty so the cant be that bad, and I have never found that replacing a few parts in a well worn stater to be a particularly long term solution.

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Zombie Master
Posts: 8194
Joined: Sun Aug 22, 2010 12:21 am
Location: Vancouver Island BC Canada

Re: Front Armature Bushing Removal

Post by Zombie Master » Fri Jun 01, 2018 11:16 pm

Any and all disclaimers may apply

Wobbly
Posts: 247
Joined: Mon Aug 07, 2017 8:48 pm

Re: Front Armature Bushing Removal

Post by Wobbly » Sat Jun 02, 2018 8:48 am

Use a hand-held Dremel hobby grinder to cut a notch length-wise in the bronze bush. The bush will collapse to a smaller OD and fall out.

Then warm the case with a heat gun, and use a press (or bench vice) to squeeze the new bush into place. DO NOT hammer the new bush in. If you do it will not be aligned with the hole in the housing and you also run the risk of peening one end closed. You'll simply spend another 2 hours trying to align the hole in the bush with the starter armature. A slow, steady, push is what's required.

PS. The worn bush points to a lack of starter lubrication. My previous post should not be ignored.

;)
After 20 years as a professional bike mechanic and 30 years as an engineer I know just enough to be dangerous !

neonwall
Posts: 17
Joined: Mon May 21, 2018 7:27 pm

Re: Front Armature Bushing Removal

Post by neonwall » Sat Jun 02, 2018 3:22 pm

Perfect thanks great advice, may try a hacksaw blade I can make a full length cut. Your thoughts on the condition of the teeth also greatly appreciated thanks boss
1986 BMW R80RT

Beemerboff
Posts: 48
Joined: Thu Feb 08, 2018 12:11 am

Re: Front Armature Bushing Removal

Post by Beemerboff » Wed Jun 06, 2018 12:41 am

Wobbly , starter bushes are made from self lubricating bronze, and need no further lubrication - your posts re lubing them are just on of the things that people have a good laugh at!

Oilite was the generic name 90 years ago ,or google self lubricating bronze bush if you want to understand why they need no lube!

Wobbly
Posts: 247
Joined: Mon Aug 07, 2017 8:48 pm

Re: Front Armature Bushing Removal

Post by Wobbly » Wed Jun 13, 2018 10:31 am

Beemerboff, the idea that you cannot manually lubricate a pre-lubricated bushing is equally ridiculous.

All the best.
After 20 years as a professional bike mechanic and 30 years as an engineer I know just enough to be dangerous !

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