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Old 12-24-2010, 12:56 PM
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Gilmer drive?

I purchased a Gilmer drive set up for my motor and will be running only a water pump and alternator. I have my alternator located at the drivers side upper portion of the motor, but the gilmer kit and belt is for it located at the lower end of the motor. The question i have is can I run a longer belt and leave the alternator up top? Or does this distance seem to be a bit of a stretch for that type of set up?

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Old 12-24-2010, 01:50 PM
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Not real sure it does look like a bit much, But you can get longer belts so it might be ok but might need some kind of idler in between to really work though , I myself wouldn't run it like that. What i did was i relocated the alt to the other side then you won't have near the distance you have. JMO plus it makes the engine look better with the alt on the other side. IMHO

I see you are going to run a electric fan set-up also correct ?

Cole
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Old 12-24-2010, 06:27 PM
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It won't be a problem as long as the alternator bracket holds the alternator solid and square to the belt. I've seen longer Gilmer belts running camshafts, which is a lot more force to turn than the alternator. Cole is correct, you may need to fab up a idler pulley to go on that long side to keep the belt from flapping hard.
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Old 12-24-2010, 07:35 PM
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You putting a blower on that and that carb is just a mock up right?
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Old 12-25-2010, 08:08 AM
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Quote:
Originally Posted by pepi
You putting a blower on that and that carb is just a mock up right?
No blower, just liked the look of the gilmer drive belts. I think this particular set up is designed to work with the alternator at the bottom of the drivers side. But I had this cool *** bracket...

And yes running an electric fan.
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Old 12-25-2010, 09:05 AM
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Quote:
Originally Posted by Dajerseyrat
No blower, just liked the look of the gilmer drive belts. I think this particular set up is designed to work with the alternator at the bottom of the drivers side. But I had this cool *** bracket...

And yes running an electric fan.
Looks like the same set-up i have, It will work with the alt on either side.JMO
Who did you get the puley set-up from ? Mine came from Black Mountian.

Cole
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Old 12-25-2010, 09:30 AM
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Quote:
Originally Posted by eloc431962
Looks like the same set-up i have, It will work with the alt on either side.JMO
Who did you get the puley set-up from ? Mine came from Black Mountian.

Cole
I got it from a shop in Georgia it was like $100 with the belt, and he gave me an extra belt. But did you run it with the alternator in this position? Or is it lower and closer to the block? Got any pictures of it installed?
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Old 12-25-2010, 09:58 AM
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Here check my old thread on this subject. The best pulley setup .You will find pics through out the thread.

I was afraid there would be to much stress on the alt mounted in that position JMO.





Cole

Last edited by eloc431962; 12-25-2010 at 10:10 AM.
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Old 12-25-2010, 05:38 PM
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Actually this bracket will work with the length belts i have already.
http://www.summitracing.com/parts/SME-2005/?rtype=10
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Old 12-30-2010, 08:53 AM
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Ok, So I got a new alternator bracket relocating the alternator to the mid mount drivers side of the block. Installed everything but Im having some alignment issues. I need some help.

As seen in these pictures, as long as I have the alternator pulley spaced about 1/4" to the front, it lines up but still is questionable as the belt seems to ride the very most rear edge of the water pump pulley, and looks like it will most likely walk off the back of the pulley.



Now if I press the alternator pully all the way down to where it should be, the alignment get VERY bad and causes the belt to hang off the back side of the water pump pulley by about 1/4" Im starting to suspect I got the wrong water pump pulley or water pump. It is a standard Chevy short water pump. the crank pulley has plenty of room for the belt to walk back or foward, so thats not the issue. If I ran the crank to only the Alternator, the alignment would be 100% perfect...




Anyone have any advice on this??
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Old 12-30-2010, 10:05 AM
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Looks like you have plenty of room to press the hub farther onto the water pump shaft.
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Old 12-30-2010, 10:47 AM
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Quote:
Originally Posted by aisr
Looks like you have plenty of room to press the hub farther onto the water pump shaft.
Its fully seated at this point Im gonna try a different water pump and see what happens.
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Old 12-30-2010, 11:42 AM
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Looks like you may be correct that the water pump pulley is incorrect. It should line up exactly the same as the lower crank pulley.

Whether it can be compared or not because styles are different IDK, seems like it would, but you get the same alignment problem with V-belts if you put a long water pump pulley on a short water pump, the waterpump pulley ends up being about 1/2" too far forward to line up with the crank pulley
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Old 12-30-2010, 11:57 AM
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I wonder if one pully is 1/2 inch pitch and the other 8 mm? My blower pullies are 8mm, and I'm not sure what specs are on the older 1/2 pullies.
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Old 12-30-2010, 12:16 PM
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Quote:
Originally Posted by ericnova72
Looks like you may be correct that the water pump pulley is incorrect. It should line up exactly the same as the lower crank pulley.

Whether it can be compared or not because styles are different IDK, seems like it would, but you get the same alignment problem with V-belts if you put a long water pump pulley on a short water pump, the waterpump pulley ends up being about 1/2" too far forward to line up with the crank pulley
The Company i got them from insists the pulleys are correct. they claim that the belt should ride to the front of the lower belt and rear of the water pump. If i ship the alternator bracket and put a spacer in the shaft, moving the alternator pulley forward, it will work like this. If the alternator pulley is fully seated as it is, it simply walks of the back of the water pump pulley while i rotate the engine.
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