The New And Improved Unofficial R65 Forum V2
Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: billygoat on June 04, 2008, 09:36:14 PM
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bosch model?? :-?
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Are you asking if we have "bench-tested" a starter?
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About the only test, you can do is in the bike, with a fully charged battery, and the spark plug leads removed from the spark plugs, and a spare set of plugs installed in the leads and grounded to the cylinder fins.
Put a multimeter on the battery terminals, and after 30-60 seconds of continual cranking, the battery voltage should not be below 10.5-10.6 volts.
When you dis-assembled and cleaned your starter, did you re-oil the sintered bearings at each end of the armature shaft ?
If anyone is wondering what a 'sintered' bearing is, its a plain friction type bearing, that is made from compressing a powdered or granulated metal into a cylindrical shape, it has a lot of nooks and crannies, that can 'absorb' or hold oil, and it seeps out over time to lubricate the bearing surface.
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It looks like I can get a Bosch starter kit at Kragen for only $14.53! It has the new brushes and berings as well as a new bendix 8-). Far etter than the $15 kit I saw on ebay. I am just going to make sure the bush berings are the propper ones but it looks like the brushes are spot on identical.
There is a bench test for the solinoid. SOLENOID TEST
Connect battery negative lead to starter solenoid terminal
"M". (the one closest to the motor)Connect battery positive lead to solenoid terminal No. 50. See
Fig. 1. If plunger does not extend firmly, replace solenoid.
funky link: http://caunter.ca/volvo960/nq14836.pdf
gret link here:http://www.thisoldtractor.com/gtbender/print/print_loopframe_electrical_starter_and_solenoid_repair_-bosch-.htm
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If the kit is the correct one, post the part number, it might come in handy in the future.
The only problem area that I had when I disassembled mine, was that metal wire ring on the motor shaft, it was one pain in the butt !
But other than that, it's not a very technically challenging job.
Don't go crazy in applying lubricant inside the starter, this is one of the few places that too much isn't a good idea.
All of the oils and grease were gone when I pulled my starter apart, I'm surprised it didn't give me problems.
If someone could move the lower link to the Technical FAQ section for easy access for someone attempting the job.
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as a matter of fact, there are bench tests for almost any part of the bike. strip the part from the bike, put it on the bench and test it. mind your fingers and keep 'em away from moving parts, especially fast moving parts.
joke, of course