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Old 04-04-2011, 08:14 PM   #1
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smog pump

i have 88 chevy escaper hes a 2 smog pumps on it i want ro remove them wat do i do all that
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Old 04-04-2011, 08:22 PM   #2
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Quote:
Originally Posted by petesaire View Post
i have 88 chevy escaper hes a 2 smog pumps on it i want ro remove them wat do i do all that
Leave them alone, They don't suckup much power and the next owner will appreciate not needing to dig them up for the smog test.

Jim
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Old 04-05-2011, 03:34 PM   #3
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As Jim said, they're necessary for the smog tests (if you're in an area that has them, or might try to sell the rig into such an area).

My '85 Ford 460 also had two smog pumps and all the related junk. I took them off and stashed them away in the attic. My local auto parts store had steel plugs specifically to plug the holes in the manifolds. I also disabled the exhaust gas recirculation valve and plugged off any dangling vacuum lines.

The changes had a mildly benficial effect on drivability, but gas mileage didn't improve. My next step would have been to find a pre-smog (like 80 or earlier) caburator. I had heard from a friend at Ford that the mid 80's and later engines were deliberately jetted rich to give the afterburners enough unburned fuel to work with. I understood that GM did similar things with their big engines. These were the chewing gum and bailing wire attampts to avoid the cost of going to electronic engine management.

We decided that we hated the floorplan so much after a season and a half that we unloaded it through a consignment dealer, so I never tried the replacement carb. I left all the smog gear in a box in a cargo bay. Never heard from the buyer.
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Old 04-05-2011, 05:08 PM   #4
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Originally Posted by frankdamp View Post
As Jim said, they're necessary for the smog tests (if you're in an area that has them, or might try to sell the rig into such an area).

My '85 Ford 460 also had two smog pumps and all the related junk. I took them off and stashed them away in the attic. My local auto parts store had steel plugs specifically to plug the holes in the manifolds. I also disabled the exhaust gas recirculation valve and plugged off any dangling vacuum lines.

The changes had a mildly benficial effect on drivability, but gas mileage didn't improve. My next step would have been to find a pre-smog (like 80 or earlier) caburator. I had heard from a friend at Ford that the mid 80's and later engines were deliberately jetted rich to give the afterburners enough unburned fuel to work with. I understood that GM did similar things with their big engines. These were the chewing gum and bailing wire attampts to avoid the cost of going to electronic engine management.

We decided that we hated the floorplan so much after a season and a half that we unloaded it through a consignment dealer, so I never tried the replacement carb. I left all the smog gear in a box in a cargo bay. Never heard from the buyer.
thanks ill plug those holes too .i have 2 smog pumps and one was not working so now the other one broke too so ill have to do the same all the way around good helps thaks pete herer
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