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Alternator fan and pulley replacement

Posted: 08 Mar 2012, 18:57
by Ginothy
Hi all,

I just bought a new alternator for my van but need to swap over the fan and pulley from my old one to the new one (new one is fan/pulley-less). Trouble is I can't work out how to get the flippin' things off of my old alternator, is there a way of stopping the alternator from spinning whilst you work on removing parts from the shaft? I've attached pictures of the parts to this message:

IMAG1303.jpg
IMAG1302.jpg

Any help you can offer would be great, need to get the van on the road by the morning ideally.

Tim

Re: Alternator fan and pulley replacement

Posted: 08 Mar 2012, 19:01
by California Dreamin
Prabably not much help but we used to 'Gun' them off...1/2 inch CP air gun.....I guess your local tyre fitters or garage would do this for a 'drink'.

Martin

Re: Alternator fan and pulley replacement

Posted: 08 Mar 2012, 19:13
by Oldiebut goodie
I hold the alternator pulley with an old belt and a lever with my foot! Never failed yet.

Re: Alternator fan and pulley replacement

Posted: 08 Mar 2012, 19:18
by Ginothy
Thanks Martin, might try my luck with that first thing in the morning if I can't sort something tonight. Suggestions still welcome...

Re: Alternator fan and pulley replacement

Posted: 08 Mar 2012, 19:20
by Oldiebut goodie
Do it now. Why wait? :)

Re: Alternator fan and pulley replacement

Posted: 08 Mar 2012, 20:37
by Ginothy
Ta for the tip, but no luck as yet. Tried the belt technique but my belts just keep slipping. Difficult to keep the alternator still, maybe if I can keep it steady it might work.

Re: Alternator fan and pulley replacement

Posted: 09 Mar 2012, 09:27
by California Dreamin
Like I say...about a minutes work with an air gun.

Martin

Re: Alternator fan and pulley replacement

Posted: 09 Mar 2012, 13:54
by docklad
I'd go with the above.........why struggle?

Re: Alternator fan and pulley replacement

Posted: 09 Mar 2012, 15:30
by Hacksawbob
I used a chain on a socket oil filter remover to hold it with a rag to stop the pulley getting damaged.

Re: Alternator fan and pulley replacement

Posted: 12 Mar 2012, 16:49
by Ginothy
Cheers everyone for your help. I don't have an air gun at home but may have to put it down on my wishlist if I ever have a garage big enough! Just took it to the garage first thing as suggested and they changed it over for me in 5 mins.

Re: Alternator fan and pulley replacement

Posted: 13 Mar 2012, 14:08
by docklad
see :D