Garth S

The original Paris-Rhone alternator in my '80 16v has fought its last battle, so I've been looking at the available 90 amp replacements: there appear to be two ...
1) Bosch AL 115X - which is also a cross fit for Audi 5000's, etc. This could work with a pulley/fan change, but I cannot find a link for a rear shroud.

2) 'Bosch' AL 325X - This appears to be either a Bosch clone of the 2nd generation SEV Marchal ( or Paris Rhone) alternators fitted to the '82-'83 cars .... or a Bosch remanufactured edition of the French orriginal .

I have the plastic end cover & pod resistor in the mail from our friends at 928 I'ntl ( 928 603 133 04), which I believe is correct for the AL 325X version - but not certain.

My preference would be to have the correct air hose/shroud hook up - so that points to the AL 325X as the alternator of choice - but what do I get under that designation? A Bosch .... or a rehashed SEV/PR via Bosch rebuilders.This unit will likely accept the fan and pulley from my PR unit so that the alignment for the V-belt is correct: sellers of the AL 115X clain that there is an issue to address re V-belt offset.

Advice appreciated from any who have done or are aware of this conversion/update. I have attached a pic of the remanuf. AL 325X offered by many suppliers, but get conflicting replies as to what it is - despite being labled 'Bosch'.

Andrew Schauer

Garth-
My local autoparts store sold me a Bosch replacement which did not require any modifications. I do not remember if I had to swap the stock Paris-Rhone pulley, or if one was in place. Lifetime warranty, and did not require the use of a shroud at all. There was even a note that use in a 928 did not require a shroud.
I will try to remember to pull the cover off the car and see what model it is. Should have the receipt somewhere as well...

joejoe

I bought the upgrade from 928intl, they also have the correct rear shroud.

Daniel Dudley

I believe someone did an AC Delco conversion last year that was a bolt on affair.

Anybody have a link ?

ROG100

According to the "recommendation details" they both will fit with the later shroud and in your case the resistor for the pod upgrade.
I sell plenty of the renmanufactured AL325X units with no comebacks.
They are $157.95 each plus core charge of $60.
For those who may need them (78 to 84) the shroud is 928 603 133 04 = $30.95 and the resistor (78 to 82) is
928 641 981 00 = $9.95. You will aslo want a new gasket that goes between the shroud and the alternator 928 603 135 02 = $7.95
Roger@928sRus.com

anonymousagain

Roger, is the resistor required for pre-S (<'83) cars? I thought it is already in the pod for my '80??

ROG100

There is a resistor there already but it needs upgrading IIRC.
The resistor is required for the 78 to 82 cars - I updated my post to make that clearer.

Garth S

I have available a marginal ( worn out slip rings) AL 115X Bosch - sort of a 4th choice option , and it has 3 rear bolt holes for whatever shroud ( like the PR alternator) ... quite unlike the 4 studs illustrated on the AL 325X version - leading me to suspect that the shroud fit is fairly specific .

So, are the AL 325X units Bosch? .... or SEV type remanuf. by Bosch? In part, my curiosity is to determine what qualifies as an acceptable 'core' : as an upgrade project, there is no AL 325X type to return .... just an old Paris - Rhone, likely to become a boat anchor. That fate may be the better solution.

justin

What about the GM alternator conversion?
https://rennlist.com/forums/showthre...=gm+alternator

6mil928

I just changed mine and this was the one I got. Excellent deal. Not sure which type it is but it was french made for sure. How do you tell the difference between the two? I do know that the back of my new alternator didn't look like the one in the pic above. Jason

http://cgi.ebay.com/ebaymotors/ws/eB...183515121&rd=1