SMOG delete pulley
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From: carlisle,pa
Car: 87 camaro(Temporary insanitee)
Engine: 2.8
Transmission: Non worldclass t-5
what smog delete pulley are you talking about? i personally don't use one, i just took the smog pump off(called A.I.R pump) and found the correct belt to run. i don't believe that what i did is possible on the 3.1's without a idler pulley
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From: Woodstock, GA
Car: 1987 Trans Am
The idler pulley that replaces the smog pump on some 60 degree V6s will work regardless of what engine you have; 2.8, 3.1, or 3.4. Redraif's 2.8 didn't come with an AIR pump or an idler, but we added the idler pulley later because the belt would whip slightly, which is probably why GM installed them on later vehicles. You don't technically "need" it, but it does keep the belt under control. Its installed on her 3.4 now.
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From: Cape May, New Jersey
Car: 92 Firebird
Engine: 5.0L V8
Transmission: 700-R4
Alls I did was get a shorter belt and left the SMOG pump out the loop. The belt I used was a 5060915 , I'd hate to see you reinvent the wheel on this one. I did notice a hp increase when I done it, however we have zero emission laws in Florida.
In my humble opinion, its worth the effort and $18 bucks for the belt.
In my humble opinion, its worth the effort and $18 bucks for the belt.
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Joined: Oct 2002
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From: Kissimmee FL
Car: 92 RS
Engine: 3.1 V6
Transmission: 700R4
LT1guy-
Is the idler pulley the same one that I have seen on the TPI Parts website for the V-8s? I want to remove the air pump but want to avoid the belt tension issues.
Is the idler pulley the same one that I have seen on the TPI Parts website for the V-8s? I want to remove the air pump but want to avoid the belt tension issues.
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From: Waterford, MI
Car: 1998 Camaro Z28
Engine: 6.0L
Transmission: 4L60E
Axle/Gears: 3.73
if you delete it and have tension issues, first make sure your tensioner isnt shot, then just get a belt thats the next size down, probably a half inch shorter. you should be just fine. when i deleted mine and got an underdrive pulley, i measured it w/ a string and then deleted 1.5 inches i believe to make up for tension. sometimes it takes a couple tries at the parts store, but it works.
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Originally posted by LT1guy
The idler pulley that replaces the smog pump on some 60 degree V6s will work regardless of what engine you have; 2.8, 3.1, or 3.4. Redraif's 2.8 didn't come with an AIR pump or an idler, but we added the idler pulley later because the belt would whip slightly, which is probably why GM installed them on later vehicles. You don't technically "need" it, but it does keep the belt under control. Its installed on her 3.4 now.
The idler pulley that replaces the smog pump on some 60 degree V6s will work regardless of what engine you have; 2.8, 3.1, or 3.4. Redraif's 2.8 didn't come with an AIR pump or an idler, but we added the idler pulley later because the belt would whip slightly, which is probably why GM installed them on later vehicles. You don't technically "need" it, but it does keep the belt under control. Its installed on her 3.4 now.
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From: Woodstock, GA
Car: 1987 Trans Am
Originally posted by DeanE
Do you by chance have a picture of your complete serpetine belt setup(routing) with this lower idler pulley so I can see?
Do you by chance have a picture of your complete serpetine belt setup(routing) with this lower idler pulley so I can see?
The pic can be seen (and enlarged) on her site on the main page:
http://www.cardomain.com/ride/191601
Last edited by LT1guy; Sep 5, 2005 at 12:35 AM.
