Smog pump seized and broke belt on my 1986 so I am going to get rid of the pump. I will need a shorter belt now. Does anyone know what size belt I should try first that maybe did this before? also do you see any issues with getting rid of it. I live in a place that it is not required. Thanks
Smog/air pump delete
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boomdriver
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It can be done but why? on a stock engine it cost more to get rid of the air pump than it does to replace it.
To remove it you MUST:
get the pulley kit & brackets ($145) pulley ( $55 belt)
new belt appropiate size (with a good kit it uses the stock belt)
To remove the pump and not create more problems down the road that are expensive you also need to:
remove cats (they plug up faster when the air supply is not there to create the hi-heat burn)
Remove AIR system piping or weld closed on ex manifold, remove diverter valves and hoses, cap off or remove line to main cat.
A rebuilt pump only cost & $45 with a lifetime warranty and 5 minutes to change. They seize when they get wet and get water inside. Otherwise a normal air pump runs as long as any other accessory and hurts nothing. If this were a highly modified engine that had no hope of meeting any emissions standards then removing it just to make it simple would be the best move. But for a stock or semi-stock motor, its a PITA to do it right (remove) and costly when compared to replacing just a pump.
You can;t just take it off and stick a shorter belt on there....not that easy. If it was, it wouldn't be a Corvette.
To remove it you MUST:
get the pulley kit & brackets ($145) pulley ( $55 belt)
new belt appropiate size (with a good kit it uses the stock belt)
To remove the pump and not create more problems down the road that are expensive you also need to:
remove cats (they plug up faster when the air supply is not there to create the hi-heat burn)
Remove AIR system piping or weld closed on ex manifold, remove diverter valves and hoses, cap off or remove line to main cat.
A rebuilt pump only cost & $45 with a lifetime warranty and 5 minutes to change. They seize when they get wet and get water inside. Otherwise a normal air pump runs as long as any other accessory and hurts nothing. If this were a highly modified engine that had no hope of meeting any emissions standards then removing it just to make it simple would be the best move. But for a stock or semi-stock motor, its a PITA to do it right (remove) and costly when compared to replacing just a pump.
You can;t just take it off and stick a shorter belt on there....not that easy. If it was, it wouldn't be a Corvette.
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catbert
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boomdriver
Well-known member
O'Reilly auto parts...thats a local chain store. I'm not guessing either....I looked it up on their handy dandy website that allows you to search parts and place orders.
Fast Freddie
Well-known member
Having just replaced mine within the last couple months, i can tell you for a fact, that there are several different variations in the pumps. i assume this is because the rebuilders dismantle all the pumps and just grab the first housing in the pile. the problem i had was the first , the rear mounting holes were a different size. then i got one with the front mount was clocked a bit different. out of 7 pumps ordered, NONE were 100% like mine...finally i just took the one with front housing mount clocked the right way and replaced the rear mount bolts. no huge deal, but issues are issues...
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