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+--- Thread: Need Assistance with Alternator. (/showthread.php?tid=1403)
Need Assistance with Alternator. - Therapy - 05-27-2010
I am not having any luck on other mercedes forums. I know I am new here but I could really use some help.
I am working on an 1987 W201 190DT. I removed the old alternator and replaced it with a 120A alt from another mercedes. I think it was from a w124. All is good on the installation until I went to match up the serpentine belt. The new 120A alt sits back about 6mm from base line so it does not match up. So now I am stuck. Not sure what to do or which way I can go in order to keep the 120A alt.
I have done a number of searches and come across a few alt upgrades but I dont remember seeing anything that went over the mismatched pulley.
RE: Need Assistance with Alternator. - kmaser - 05-27-2010
It may be possible to swap pulleys with your old alternator
RE: Need Assistance with Alternator. - Therapy - 05-27-2010
(05-27-2010, 01:36 PM)kmaser It may be possible to swap pulleys with your old alternator
I thought about trying that just to get things going. And even with the reduction in power due to the larger diameter pulley it would still put out more power then the original alternator. The diesel doesnt use much power to run anyway. No ignition system to support.
RE: Need Assistance with Alternator. - Rudolf_Diesel - 05-27-2010
(05-27-2010, 01:48 PM)Therapy(05-27-2010, 01:36 PM)kmaser It may be possible to swap pulleys with your old alternator
I thought about trying that just to get things going. And even with the reduction in power due to the larger diameter pulley it would still put out more power then the original alternator. The diesel doesnt use much power to run anyway. No ignition system to support.
You could space out the pulley with some shims to match up to the other pulleys.
RE: Need Assistance with Alternator. - SurfRodder - 05-28-2010
They make spacer washers that fit around the shaft and its key... A local alternator rebuild shop should be able to help you out.
RE: Need Assistance with Alternator. - Therapy - 05-29-2010
I went ahead and pulled the alternator back off... which i needed to do anyway.. and installed the pulley from the old alternator. They are different in how they mate to the alternator. But it works so I will run it like this for the time being.
RE: Need Assistance with Alternator. - mr_manny - 05-29-2010
out of curiosity, has anyone adapted a chevy alternator?
internally regulated, several outputs to choose from, and redly available.
imagine a custom bracket and the appropriate pulley would only be necessary...this is what I did when I installed a 12si (3wire) onto my toyota motor.
thanks,
manny
RE: Need Assistance with Alternator. - rdirtycar - 07-10-2010
As a teenager I delivered auto parts for a summer job. It seems like I delivered a GM alternator every day. The cores would come back with a lot of seized berings. I wouldn't put GM engineering anywhere near my car. For some reason GM thinks people have time on their hands to wait for a tow truck. Americans just don't understand paying a little more up front is cheaper in the end.
RE: Need Assistance with Alternator. - Captain America - 07-11-2010
I would have to disagree with you on that one...
A dying battery worked the 37 yr old alt in my Sprint so hard that is gave up the ghost finally so I put in a Powermaster 140 amp and it has work flawlessly ever since... It even has survived through a crash where I rear ended a car and the battery went from behind the passenger headlight to on top of the air cleaner (engine still running), radiator core support hit the alt and scuffed and scratched the fan. And she still runs champion.
I think the problem is that people replace the normal parts that go bad with cheap china shit and expect them to last. Well they don't! Those people should be slapped. I avoid china whenever possible.
I guaranfuckintee you that most of those alts that you delivered and accepted as core weren't true GM pieces... Unless you were working at a dealer.
RE: Need Assistance with Alternator. - rdirtycar - 07-13-2010
(07-11-2010, 06:11 AM)Captain America I would have to disagree with you on that one...
A dying battery worked the 37 yr old alt in my Sprint so hard that is gave up the ghost finally so I put in a Powermaster 140 amp and it has work flawlessly ever since... It even has survived through a crash where I rear ended a car and the battery went from behind the passenger headlight to on top of the air cleaner (engine still running), radiator core support hit the alt and scuffed and scratched the fan. And she still runs champion.
I think the problem is that people replace the normal parts that go bad with cheap china shit and expect them to last. Well they don't! Those people should be slapped. I avoid china whenever possible.
I guaranfuckintee you that most of those alts that you delivered and accepted as core weren't true GM pieces... Unless you were working at a dealer.
I worked at NAPA and they probably bought chinese stuff. But Powermaster, isn't that a lot nicer than what's OE in S-10's? I want one.
nice website by the way man
RE: Need Assistance with Alternator. - Captain America - 07-13-2010
Yeah A Powermaster is hella nice and they are not that expensive either. And the one I have puts out 140amps. I think when the one in the Benz takes a dump I will look into trying to adapt one...
You went to the RetroTek Speed website? Thanks... That's the place I work.