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Old 07-13-2019, 11:52 AM   #51
dbarton
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Quote:
Originally Posted by gsellstr View Post
Gotcha. My Mechman is just the normal cast case.
Probably like this one? My old 140a Mechman I bought back in 2010. Worked better than any other alternator up to that point, but not as good as the new one. I know hairpin style stators existed then, but I had no clue about them or if Mechman offered it. As far as I know it has the normal stator.
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Last edited by dbarton; 07-13-2019 at 03:33 PM..
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Old 07-13-2019, 03:41 PM   #52
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Did some driving today. One of the concerns I came across with this setup was possible elevated temperatures of the belt being flexed backwards. So I drove it for a decent test drive and got things good and hot. Lots of high rpm ramp ups too.

Then I checked IR temperature readings of all the belts. The belts on this idler had no unusual temperatures. All belts were within a degree or two with a max reading so far of 175 deg F.
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Old 07-14-2019, 12:18 PM   #53
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Yup, thats what mine looks like but it is the 170A unit. I was fighting some issues, unrelated, but I did a load test on it, found it would drop .2v at idle, with 125A load, with an underdrive pulley. Pretty damned impressive.
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Old 07-14-2019, 01:02 PM   #54
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Originally Posted by gsellstr View Post
Yup, thats what mine looks like but it is the 170A unit. I was fighting some issues, unrelated, but I did a load test on it, found it would drop .2v at idle, with 125A load, with an underdrive pulley. Pretty damned impressive.
Yes, that is impressive. When did you buy yours? Was it around 2010 when I bought mine or later?
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Old 07-14-2019, 03:03 PM   #55
Markos Simopoulos
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I have 250 amp ford power stroke alternator in my 240 volvo, at first I only put one v belt on , anyways I made an aluminum pulley for 2 belts and have been runing that for years.
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Old 07-14-2019, 05:30 PM   #56
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Mine was actually gifted, but it was purchased around 2012-2013 I think.
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Old Yesterday, 07:03 AM   #57
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Quote:
Originally Posted by Markos Simopoulos View Post
I have 250 amp ford power stroke alternator in my 240 volvo, at first I only put one v belt on , anyways I made an aluminum pulley for 2 belts and have been runing that for years.
If you have any photos, that would be something I'd like to see.
Thanks, Dave
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Old Yesterday, 10:06 AM   #58
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Same here! I'm dealing with charging system issues on the Dodge right now, might be interested in an upgrade if it'll fit.
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Old Yesterday, 12:07 PM   #59
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Quote:
Originally Posted by gsellstr View Post
Mine was actually gifted, but it was purchased around 2012-2013 I think.
So yours may be a mystery alternator too.

I think there was a serious lack of solid info when these Mechman were offered. I was told the one I bought was a 140a unit (although I never got any documentation or a part number). It was $300. You were told you have a 170a unit.

I found the below info in a Mechman catalog online. That's my exact alternator (as far as the case anyway). G series 3-phase unit available in 240 or 270 amp.

I asked Mechman and they don't seem to know either. No one knows squat.

I'm not obsessing over it, but just curious. Maybe I'll sell it, but who wants an alternator with so many mysteries.
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Old Yesterday, 12:43 PM   #60
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Eric knows the dirt on them since he helped develop them. I think there was a different in regulator plug on the back between the 140 and the 170's. Mine is also cast DR44 on the front. I believe the ones MM was selling were hopped up 140's. but honestly it's been too damned long. lol

I'd rock a 140 or a 170 on the Dodge anyway, step up from the 116 it has. lol
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