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20" v-belt for air pump delete

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Old 07-23-2010, 12:46 AM
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Formula94lt1
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Default 20" v-belt for air pump delete
What brand and where do you get them?? No one in my area has it, or claims to be able ot get it....
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Old 07-23-2010, 02:49 AM
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GlennD
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You may wish to try your local hardware store - the 20" belts are used for the riding lawn mowers.

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Glenn
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Old 07-23-2010, 03:17 AM
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Formula94lt1
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I wasnt sure if the green lawn equipment belts would suffice. Gates 6820 should work in that case. Need to find one though.
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Old 07-23-2010, 10:25 AM
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linderpat
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yep; got mine at the local lawnmower store.
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Old 07-23-2010, 10:41 AM
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No one in my area has it, or claims to be able ot get it....

We stock the Gates belts in 20" & 21" for $10 each
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Last edited by ROG100; 07-23-2010 at 11:06 AM.
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Old 07-23-2010, 10:53 AM
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GlenL
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A good supply store will stock these in 1/2" increments.
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Old 07-23-2010, 01:39 PM
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billtool
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Grainger 4L210. Fits perfectly.
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Old 07-23-2010, 01:44 PM
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GlenL
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Originally Posted by billtool
Grainger 4L210. Fits perfectly.
I should have added that the fan pulleys came in different sizes. No, I don't know what got what. Get a few, try them out, take the mis-fits back.
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Old 07-23-2010, 01:55 PM
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I went to my local Tractor Supply and bought a '20 for $3.
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Old 07-23-2010, 02:04 PM
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76FJ55
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if the OD of the fan pulley is ~106mm you need the 21" belt.
if the OD of the fan pulley is ~86mm you need the 20" belt.
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Old 07-23-2010, 02:06 PM
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dcrasta
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Granger has both the 20 and 21 inch belt for about 5 bucks.

4l200 = 20 inch belt
4l210 = 21 inch belt

They will ship to you but every state in the US of A has a Grainger supply store.

http://www.grainger.com/Grainger/items/4L200
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Old 07-23-2010, 06:52 PM
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rjm65
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NAPA usually has both:

NBH 4L200 & NBH 4L210
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Old 07-23-2010, 08:19 PM
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orangecrush
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Please excuse my ignorance. Does the 1989 S4 model have an air pump as well?
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Old 07-23-2010, 08:23 PM
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Erik N
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OB'ers: Did anyone notice any gains by bypassing the airpump?

And will doing so decrease the life of a cat?
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Old 07-23-2010, 08:33 PM
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Hilton
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Originally Posted by orangecrush
Please excuse my ignorance. Does the 1989 S4 model have an air pump as well?
Yes, but it has its own belt. The early cars have a belt that goes around the air pump and also the fan clutch for the mechanical puller fan on the radiator, hence the need for a shorter belt that just goes to the fan clutch.

S4 onwards has dual electric puller fans, so you can just cut and remove the air pump belt.
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