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Re: Fan belt won't stay on at high rpm [Re: Hemi ragtop] #1224687 05/02/12 11:27 AM 05/02/12 11:27 AM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	A guy on here used a pencil laser pointer laid in the groove and used shims/flat washers to get his front to rear pulley alignment dead on. Also make sure the PS pump housing/pulley is parallel to the crank/wp pulleys live every 24 hour block of time like it's your last day on earth

Re: Fan belt won't stay on at high rpm [Re: 68jim] #1224688 05/03/12 07:37 AM 05/03/12 07:37 AM
Joined: Mar 2010 Posts: 984 Tennessee H Hemi ragtop OP super stock
Hemi ragtop OP super stock H Joined: Mar 2010 Posts: 984 Tennessee	Quote: Factory Hemi will use a dual pulley on the alternator. I'm not sure though if the one he is using (A/C??) will have the same offset to match up with the repro pulleys. Jim I got an original? HEMI pulley and compared the belt depth with the pulley that came on the replacement alternator. The belt rides deeper in the groove on the original. Does the pulley press on and off like the p/s pulley?

Re: Fan belt won't stay on at high rpm [Re: Hemi ragtop] #1224689 05/03/12 11:39 AM 05/03/12 11:39 AM
Joined: Nov 2003 Posts: 1,029 Southeast Virginia 68jim super stock
68jim super stock Joined: Nov 2003 Posts: 1,029 Southeast Virginia	The pulley can be swapped out with an original one (2095095). You do need a special fixture to remove it - don't try a generic puller. There are a few on eBay currently. eBay link to pulley I'm running all original pulleys on my hemi with some Mopar brand fan belt I bought probably 15 years ago. My motor has seen 6K rpms many times now with no belt issues other than re-tightening after the initial stretch. Jim 7190665-altpulley.jpg (39 downloads)

Re: Fan belt won't stay on at high rpm [Re: 68jim] #1224690 05/03/12 10:13 PM 05/03/12 10:13 PM
Joined: Mar 2010 Posts: 984 Tennessee H Hemi ragtop OP super stock
Hemi ragtop OP super stock H Joined: Mar 2010 Posts: 984 Tennessee	Jim, thanks for the tip. I think the pulley will do the trick.

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