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#Post#: 103224--------------------------------------------------
What's wrong with my starter motor?
By: ProDave Date: March 28, 2021, 10:05 am
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Series 3 petrol SWB standard starter motor.
Motor spins when you turn the key, but does not engage. with the
engine. Bendix stuck I think.
Just taken the motor off and can find nothing wrong. I guess
just the buggering about getting it off has "unstuck" it.
This has been ongoing for a year now. Fine in regular use, but
leave it 2 weeks and it would not engage. Keep on and on trying
ant it might free, or start it on the handle, go for a 20 mile
run and the vibration has freed it up to now.
But now off the motor and on the bench it all looks fine. the
bendix is free to move up it's shaft, it appears to be
lubricated with a bit of light oil. I guess i will just leave
it untouched on the bench for 2 weeks to see if it sticks again.
I don't want to put it back until i know it's not going to
stick again.
#Post#: 103226--------------------------------------------------
Re: What's wrong with my starter motor?
By: NoelC Date: April 1, 2021, 5:27 pm
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My 88 used to do that, I resigned myself to removing the starter
motor once in a while, especially after wading in muddy stuff
and giving it a good clean and lube. I can't remember what it
was but I found some stuff designed for bikes that had PTFE in
it which seemed to help. Fitting the 2.5 petrol with it's
starter motor solved the problem. rofl
#Post#: 103227--------------------------------------------------
Re: What's wrong with my starter motor?
By: ProDave Date: April 2, 2021, 7:20 am
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Well I have witnessed on the bench what I thought was happening.
Leave it a week and the bendix does not engage. Turn it by
hand and it is stuck and frees almost with a "clunk"
I noted the spiral shaft it spins on was coated with oil /
grease. Not put there by me and not leaking oil as the rest of
the motor and inside the bell housing is dry, somust have been
put there by previous owner?
I understand this should not be oiled or greased. So i have
dried it thoroughly and repeating the wait 2 week test to see if
it sticks again or not.
In the mean time I have had the brush cover off and confirmed
all brushes and comutator good and no work needed there.
What, if anything should the spiral shaft the bendix spins on be
lubricated with?
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