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-   -   Belt slipping???? (https://www.f150online.com/forums/lightning/255414-belt-slipping.html)

bjhogan 09-28-2006 08:58 PM

Belt slipping????
 
I have had my L now for a few weeks and I have a small problem. It's probably not unique if I had to guess. During full acceleration, when the transmission shifts one of the belts squeak. Has anyone ever had this problem? If so, what belt did you change? I realize it would be fairly inexpensive to replace both of them, but if only one is slipping no sense in getting two?

Has anyone ever had this problem? If so, what belt was the problem?

--Ben

gbgary 09-28-2006 09:34 PM

http://www.chickenears.com/billet_idler_kit.jpg

http://reichardracing.com/images/lar..._composit2.jpg

get a metco idler kit from chickenears.com and an ultra-grip pulley from reichardracing.com and you'll be set....oh, a gates green stripe belt will last a lot longer with that pulley than a gator-back will.

Robert Francis 09-28-2006 11:21 PM

If you do a "search" on here, you'll find a lot of info on "slipping belts" - what signs to look for if it's the blower belt or FEAD belt.

Unless you have changed blower pulleys and just recently noticed some possible belt slippage, there's no need to install a blower belt "idler" kit on a stock motor. If you have recently installed different pulleys (or someone else had in the past) and you're experiencing belt slippage, an "idler" kit may be useful or breaking off the tensioner tab may help. However, before you consider purchasing any idler kit, I'd suggest doing a "search" on here for the diffferent types available, as many prefer the Magnum Powers idler kit for some specific reasons.

Those Reichard idlers sure will cut slippage to a minimum - but be prepared for shorter belt life.

Certified Drunk 09-29-2006 10:21 AM

Try a new belt first. :coffee:

SRTthis 09-29-2006 10:34 AM

+1 on a new belt. ditch the gator back and go with a gates/napa belt.

if that doesnt stop it id then go to the metco idler setup. then if you still have slip id go to the RR pulley. if you still have belt slip get a RR manual tensioner

Full Auto 09-29-2006 11:34 AM

I'm betting it's the Accessory belt.

veloci 09-29-2006 12:05 PM

do you know gates/napa belt part # with the 4# lower pulley?

regards,

SRTthis 09-29-2006 12:58 PM

stock length-66"
stock lower/2.75" upper/stock idlers-65.5" belt
stock lower/2.8" upper/stock idlers-?
stock lower/3.5"upper/aux idler w/90mm and 100mm-69"

4lb lower/2.75" upper/stock idlers-
4lb lower/2.8" upper/aux idler/90mm and 100mm-68.5"
4lb lower/stock upper/stock idlers-67.5"(very tight)
4lb lower/3.5" upper/two 90mm idlers-68.5"
4lb lower/3.5" upper/aux idler/two 90mm idlers-69"
4lb lower/3.25" upper/stock idlers-68.5"

5lb lower/3.5" upper/stock idlers-68.5"

6lb lower/stock upper/stock idlers-68.5"/69"
6lb lower/2.7"upper/stock idlers-68"
6lb lower/stock upper/Aux Idler w/two 100mm-69.5"
6lb lower/3.25 upper/69"(tight)
6lb lower/3.5" upper/90mm idlers-69.5"

8lb lower/stock upper/Metco aux idler w/two 100mm-69"
8lb lower/2.75" upper/stock idlers-67"
8lb lower/2.80" upper/aux idler w/two 90mm-69.5"(tab removed)
8lb lower/3.25" upper/stock idlers-68"
8 lb lower/3.5"upper/aux idler w/two 90mm/tensioner tab removed-69"

l-menace 09-29-2006 01:46 PM

the Idler pulley should be on the PASSENGER side of the Blower snout, not the driver's side.

The belt coming off the crank "pulls" the blower pulley, instead of "pushing it" to turn (if that makes sense). therefore you want the idler on the passenger side. (like the Magnum powers idler bracket)

SRTthis 09-29-2006 01:47 PM


Originally Posted by l-menace
the Idler pulley should be on the PASSENGER side of the Blower snout, not the driver's side.

The belt coming off the crank "pulls" the blower pulley, instead of "pushing it" to turn (if that makes sense). therefore you want the idler on the passenger side. (like the Magnum powers idler bracket)

thats correct...

but belt the added belt wrap helps none the less....


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