There are a lot of great youtube videos out there that will show you how to go about diagnosing starter problems. I used this one today to do some bench testing of the 1973 2002 starter that I removed yesterday.
You may recall that this 2002 won't start. It had been sitting for years before I bought it in November 2012. The previous owner told me that he had had it running in the previous summer, but it wouldn't start for him the day I bought it.
I suspect the real problem may be as simple as a tank of bad gas, but in the meantime I have to deal with all the other problems associated with a car that has been unused and out in the elements for a long, long time: battery was stolen, apparently; the starter was straining to crank the motor and yesterday it just appeared to give out completely. It had been turning over the engine very slowly, despite having a brand new battery and a battery charger hooked up to it.
So I pulled the starter and decided to run some bench tests on it. I used the youtube video below--- although there are many others available--- partly because it was quite simple to follow, and ran some basic tests.
I ran the three tests shown in the video above and the result was..... well, two out of three aint't bad! But it ain't good, either! My starter passed test 1 and test 3 without a problem. However, it failed the test #2, the motor test. It appears that the motor is bad. Since I am not in any particular hurry on this, the thought has crossed my mind to pull this starter apart and see what it needs.
Alternatively, I have a local automotive electric shop that I have previously used with good results for an alternator on my 1982 323i Baur. I could take this starter to them sometime this week.
As it happens.... I also have a 1978 320i parts car. M10 2.0L engine, same as the engine on this 1973 2002. I will do a bit or research.... to see if the starters are interchangeable.
Realoem gives two different part numbers for those two starters.
http://realoem.com/bmw/showparts.do?model=ST12&mospid=47140&btnr=12_0933&hg=12&fg=25
http://realoem.com/bmw/showparts.do?model=3174&mospid=47175&btnr=12_0254&hg=12&fg=25
I wonder if they are interchangeable.
Stay tuned!
Also found the brake fluid reservoir completely empty. That explains why I had NO brakes at all when I pulled it into the garage back in November. Refilled the reservoir, and pumped the brakes a few times. Still not getting much pedal. No big deal. I checked underneath, half-expecting to see a puddle somewhere. No obvious leaks underneath at all. The old fluid got out somehow, so there has GOT to be a leak somewhere. We will get back to that eventually. Add it to the list. :)
See full project journal here:
http://baurspotting.blogspot.com/p/1973-2002-project-journal.html
You may recall that this 2002 won't start. It had been sitting for years before I bought it in November 2012. The previous owner told me that he had had it running in the previous summer, but it wouldn't start for him the day I bought it.
I suspect the real problem may be as simple as a tank of bad gas, but in the meantime I have to deal with all the other problems associated with a car that has been unused and out in the elements for a long, long time: battery was stolen, apparently; the starter was straining to crank the motor and yesterday it just appeared to give out completely. It had been turning over the engine very slowly, despite having a brand new battery and a battery charger hooked up to it.
So I pulled the starter and decided to run some bench tests on it. I used the youtube video below--- although there are many others available--- partly because it was quite simple to follow, and ran some basic tests.
I ran the three tests shown in the video above and the result was..... well, two out of three aint't bad! But it ain't good, either! My starter passed test 1 and test 3 without a problem. However, it failed the test #2, the motor test. It appears that the motor is bad. Since I am not in any particular hurry on this, the thought has crossed my mind to pull this starter apart and see what it needs.
Alternatively, I have a local automotive electric shop that I have previously used with good results for an alternator on my 1982 323i Baur. I could take this starter to them sometime this week.
As it happens.... I also have a 1978 320i parts car. M10 2.0L engine, same as the engine on this 1973 2002. I will do a bit or research.... to see if the starters are interchangeable.
Realoem gives two different part numbers for those two starters.
http://realoem.com/bmw/showparts.do?model=ST12&mospid=47140&btnr=12_0933&hg=12&fg=25
http://realoem.com/bmw/showparts.do?model=3174&mospid=47175&btnr=12_0254&hg=12&fg=25
I wonder if they are interchangeable.
Stay tuned!
Also found the brake fluid reservoir completely empty. That explains why I had NO brakes at all when I pulled it into the garage back in November. Refilled the reservoir, and pumped the brakes a few times. Still not getting much pedal. No big deal. I checked underneath, half-expecting to see a puddle somewhere. No obvious leaks underneath at all. The old fluid got out somehow, so there has GOT to be a leak somewhere. We will get back to that eventually. Add it to the list. :)
See full project journal here:
http://baurspotting.blogspot.com/p/1973-2002-project-journal.html
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