Alternator help please: 1973.5 911T w/ cis

911 tweaks · 05-21-2014, 11:34 AM

here is what i removed...what part do I need to replace this...? this alt had 4 wires attached to its back side...
wire connectionus are: botttom rectangle had 1 wire attached w/ a female spade connector...going counterclock wise, nut had 1 sm wire on it...rt side of red area had 2 lg red wires...next was 2 sm brown wires...

thx, bob

911 tweaks · 05-21-2014, 01:57 PM

ok I guess no one is too familiar with this style alt too...
I did find this out so far with help from Glenn @ Pelican Parts sales whom is a GREAT GUY AND A TON OF INFO ON ALL PORSCHES...ESPECIALLY THE EARLY CARS AS HE HAS 1 OR 2...
Anyway, on 1 spot of the front winding I saw "SEV" = a marchal/motorola type alternator...770w output...the correct p/n for this alt is 911 603 120 06 and it is discontinued...and it has a seperate external voltage regulator mounted on the elect bd in the engine bay...
I am going to see if the external volt regulator fixes the no charge condition or if i also need to find a rebuild shop for the alt or possibly convert over to the only avail pelican part which is a Valeo unit w/ built in volt reg...Glenn is concerned (now i am) that it may not fit this early car...so...
Can anyone recommend a shop for rebuilding alternators...? maybe on east coast but if it is west coast that is fine too...?
thx, bob

Driver_X · Driver_X's Garage

PM Sent

E Sully · E Sully's Garage

Wish I could help, but the shop that rebuilt my original alternator is no longer around.
The 70 amp rebuilt one Pelican offers seems to be a match though.1973 Porsche 911 T Coupe/Targa - Charging System & Battery - Page 1

rpc356 · 05-22-2014, 03:51 AM

Quote:

Originally Posted by 911 tweaks

Can anyone recommend a shop for rebuilding alternators...? maybe on east coast but if it is west coast that is fine too...?
thx, bob

Bob, wheee are you located? There are a couple of places in the Northern VA area, Arlington Armature and Artie's Auto Electric. I've used Arlington Armature for my Marchal and am satisfied with the results. Local folks who I trust have said Artie's is very good, and I will probably use them next.

911 tweaks · 05-22-2014, 05:23 AM

thx alot guys...a lot of great info here...I'll let you all know how it all works out...bob