The car came with a aftermarket a/c unit. It has a rinky-dink four blade pushing fan between the grill and the condenser coil. I'm wondering about the draw on the generator with the a/c and fan. I'd like to replace the stock fan and the add on a/c fan with a good (2500-3000 CFM), https://www.summitracing.com/parts/flx-168/overview/ ,pushing electric fan. This post had somethings to say about the abilities of the original generator:https://www.jaguarforums.com/forum/m...ersion-202117/


Any comments or help appreciated. - Stu

 

That new fan takes almost 20A , so may well have an effect on the dynamo's ability to keep up, what Dynamo do you have fitted at present ? If you have been reading the Air Con thread and it's contents, you will have seen that there was a need to upgrade to a 60A alternator when there were issues with night driving with lights on and AC.

The biggest benefit of the Alternator over the Dynamo is that is gives a higher output at low revs.

 

Yes ~ the standard 30 amp dynamo & even the "uprated" 35 amp unit is unlikely to keep up with mod cons fitted to the vehicle.

There are a range of Dynalites that look original & are available with PAS pump offtake. Up to 60 amp IIRC.






PAS pump offtake






And not look alike but will accommodate PAS pump & output 65 amps.

 

Who makes the last Alternator with the take off Glyn ?

 

Stu,

check with Retroair if you want to convert to alternator, he has one if your car has power steering and another alternator for S type without p/s.

Dynamo to Alternator Kits | RetroAir, Inc.

 

XK's Unlimited supply. Now owned by Moss. I would go Dynalite. Like the Retroair supplied unit the XK's unit requires conversion back to the single "V" belt. Really for early Mk2