I would bet dollars to donuts that the regulator was the problem. Mine has failed three times in the 10 years I have owned it and it has always been the brushes in the regulator. A local auto electric shop got me some new brushes that fit and cost a buck apiece. I got 4 spares plus the two I needed to repair my regulator. I have 2 spare regulators and I have been using the same set of regulator/brushes assemblies for over 10 years as they also fit my 75 300d I got in 2001. I just replace the brushes when they fail.
Oh yeah, that thingy with the wire is a filtering capacitor.
Next time you are at a PAP yard pull a regulator, if not the whole alternator, and keep it as a spare. If you can solder, then the brushes are relatively easy to replace.
Bogy.
On Thursday, July 10, 2014 10:37 PM, "drnickv@sbcglobal.net [diesel_mercedes]" <diesel_mercedes@yahoogroups.com> wrote:
I am having trouble understanding this. Hope you can help. I have a 1984 300D with a bad alternator. I have been working on cars for 40 years. The car has the 65 amp bosch version.
When removing the alternator, how are you suppose to remove the adjuster bolt. I removed the through bolt, loosened the adjuster bolt, and moved the adjuster so the alternator was closest to the engine block and belts fell off. But how are you suppose to remove the adjusting bolt. I had to bend the mounting bracket to free the adjuster rod, then it barely cleared getting it out anyway. Is that how it is done? Seems like a pain in the rear. First time I actually cussed German engineering. Did I miss something?
Once the alternator was on the ground, I was still confused. The 65amp rebuilt one I got from O'Reileys had me scratching my head some more. What is the little rectangular gizmo attached to the back of the alternator with one wire going into the rear of the alternator. Looks like a resistor. Can't find a new one. I think it said Faccon 2202 or something like that. Thought we had a picture of it but can not find it now.
When looking at the old alternator, I removed the voltage regulator and the brushes were wore down. Made me wonder if the alternator was fine, just the regulator was shot. Can it be tested off the car? How do you know? Can a voltage regulator be purchased separately? I have not been able to locate on online. I do not mind dropping $140 but if I do not have to, that is a bonus.
When we originally tested the alternator, voltage would not increase at battery when motor was reved past 2K. Thought that indicated alternator. That is why it is off the car now.
thanks, nick
__._,_.___
Posted by: Bogy Wan Kenobi <polespearbogy@yahoo.com>
| Reply via web post | • | Reply to sender | • | Reply to group | • | Start a New Topic | • | Messages in this topic (5) |
.
__,_._,___
No comments:
Post a Comment