How do I remove stuck pulley from alternator

ajcb

ajcb

Member
Removing the pulley from a Lucas 18ACR alternator. Now I did this before about 40 years ago. I recall it was quite easy but I knew what I was doing then! I need to do this as I want the old pulley from the 18ACR to put on a new 18ACR alternator which came with a pulley which does not protrude forward enough. Simple I thought!

For information the 18ACR alternator on the V8 is LH and on the 4 cylinder is RH. Otherwise the alternators are the same except that on the 4 cylinder the pulley protrudes further than the one on the V8. I am fitting a RH 18ACR to a 4 cylinder car but need to change the pulley as the new alternator has the standard pulley rather than the extended one. The Alternator I am fitting is a
Product: Alternator FRIESEN Manufacturer: QUINTON HAZELL Model: 9066226 (Voltage 14V, Current/charge 45A)

So far I have very quickly undone the big nut holding the pulley onto the original Lucas 18 ACR by placing the alternator on a bench, holding the pulley firmly with a cloth, putting a socket with a 90 degree rod on the nut and hittting the end of the rod hard with a hammer so the nut turns in an anticlockwise direction. With the nut now loose I removed it and the split washer behind it but seem unable to get the pulley off.

I thought the pulley just pulled off but it won't budge and I don't want to force it least I cause damage. Any advise welcome.

Best wishes

Tony Bunting
 
try to lever it off with two flat head screw drivers either side levering 1 at a time if not text me and i will sort one out for you.
 
I remember mine being tough to get off, but I just put a few cushions on the workbench, slotted two battens either side of the pulley and smacked the spindle through it a piece of 1lb hammer and a bit of dowel.

Michael
 
Never had a problem with them. Usually fairly robustly grip the pulley in the jaws a vice (fit soft jaws if you have them), hand support the alternator then a smart smack with a copper/hide Thor type hammer, I have never had to resort to applying a bit of heat to the the pulley ( oxy or blow lamp)just to expand it a bit, but could help if its really stuck on (dont apply too much otherwise it could transmit down the shaft to the windings)
 
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