cheap and quick smog pump removal (1994-1995 Mustang GT) - Ford Mustang Forum
 
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post #1 of 13 (permalink) Old 07-06-2010 Thread Starter
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cheap and quick smog pump removal (1994-1995 Mustang GT)

ok this is for people who are on a budget or cant wait a week or more for the smog pump delete pully to arrive! YOU CAN RUN YOUR CAR WITHOUT EITHER AND JUST BUY A BELT TO FIX IT! i have read a bunch of people say u cant do it or if you can it will run hot or the water pump will run backwards. that is not true at all. i have run mine for 6 months and it doent go past the r in normal on the guage. u need a belt that is smaller then stock. i went to advanced/discount..(whoever they r now) and got a 895k6 and ran through a couple ways until it all ran the right way. to start u out in the right direction u need to loop belt under idler pully and over the top of the altanator and over the top of the ps.pully u will then go back to alt.. side and pull belt straight past the tensioner pully and around the crank pully. u will then snake the belt around the h2o pump so that it comes off of the left side of the pully and over the top. then u bring it around the ac pully and u should hava a straight line going up to the p.s. pully. pull tensioner back and line up belt plug off air hose from old pump, and put ur air intake back together and go for a quick drive and check to make sure belt set itself. it takes 10 minutes and cost 11.99 instead of $75-$150 and the wait!!!!!!

Last edited by sleeperreaper94; 07-06-2010 at 03:49 PM. Reason: mis spelled stuff
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post #2 of 13 (permalink) Old 07-06-2010
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what are the benefits of no smog pump?
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post #3 of 13 (permalink) Old 07-06-2010
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it is supposed to relieve some parasitic drag off the crank pulley. It the pros are minimal and the potential cons are catastrophic.
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post #4 of 13 (permalink) Old 07-07-2010
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Quote:
Originally Posted by mustang1010 View Post
it is supposed to relieve some parasitic drag off the crank pulley. It the pros are minimal and the potential cons are catastrophic.
What exactly would the potentially catastrophic cons of no smog pump be, just out of curiosity?

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post #5 of 13 (permalink) Old 07-07-2010
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Quote:
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What exactly would the potentially catastrophic cons of no smog pump be, just out of curiosity?
If you still have the cats, they need the pump to work properly (burn) without, theoretically, they'll fail
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post #6 of 13 (permalink) Old 07-07-2010
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Quote:
Originally Posted by nnik View Post
If you still have the cats, they need the pump to work properly (burn) without, theoretically, they'll fail
Never really viewed exhaust work as "catastrophic." Maybe its just me. Catastrophic involves the car not running because mechanical pieces have ground together and disintegrated other metal pieces or electrical things have contacted other electrical things they are not supposed to and have either burst into flames or caused loud popping noises followed by puffs of smoke from the dash..

Cats are like $80. If we consider that a catastrophic failure, then everyone who drives is creating a catastrophic failure every day. Tires cost more than that. And they fail no matter what you do.


Matt

2006 GT - Vortech polished w/ intercooler, Eibach suspension, Hurst short-throw, some other goodies - tuned by Paul's High Performance. It moves...

and it collects dust admirably while parked for repairs in the garage...

SOLD - 1995 Black Mustang GT, AODE. Loved it, but I had to let it go...

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post #7 of 13 (permalink) Old 07-07-2010
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:hihi:to him spending $ on new cats may be catastrophic....me, well I would just put in an off-road H-pipe from summit ($129) gid rid of all the annoying piping, get shorter belt, and blah blah blah after 300000 km pump is probly f-ed anyway
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post #8 of 13 (permalink) Old 07-07-2010
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its not the smog pump being removed that is the problem, is the methods people take to remove it and get the car *running* again. anywhere from running shorter belts to maxing out tensioner and not having proper tension, running water pump backwards due to belt on wrong because of bypassing smog pump. thats why potential was in bold. if you get a replacement pulley (for smog pump). its doubtful it will hurt anything; just make sure you put everything back together again correctly
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post #9 of 13 (permalink) Old 07-07-2010
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NO, you don't need the smog pump and the cats will be fine. Who on earth told you that cats need the smog pump to work correctly? The damage to cats comes from the cats being at the wrong temperature. They melt or they are not warmed correctly and thus not working to curb the emissions.

We take the smog pump off the car so that we are not recycling exhaust back into the engine which robs the engine of power. The pump helps with emissions because it makes sure that unburnt fuel gets cycled back into the engine to get burned.

Changing the belt and leaving the smog pump and hardware intact is the best way to go especially if you may have to pass an emissions test in the future. All you do is pop your old belt back on for the test and take it back off afterwards.
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The smog pump has nothing to do with pumping exhaust back into the engine. The EGR vave is what controls the flow of exhaust gasses back into the engine. The smog pump pump air into the cats so that they heat up faster and burn hotter. Above poster does have a point about leaving smog pump on to pass emissions though.
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The smog pump is completely useless unless you get tested for emissions.
All it does is pump air into the exhaust to help with emissions. The cat's don't even know it's there or not.

The smog delete pulley is a gimmick. It's not needed whatsoever, unless you'd rather spend close to $100 to keep the stock belt. Otherwise you can just use a shorter belt that costs less than $20.

If you are in a state that tests for emissions, then you can keep the smog pump on and hold on to the stock belt for when you test, and then just run a shorter belt when you don't need the pump.

If you don't test for emissions then take that thing out. You'll gain maybe less than 5HP at the wheels, but you'll lose about 20lbs in the process. Losing weight is about the same as gaining HP.

I currently have my smog pump and AC bypassed with a shorter belt and have no issues whatsoever.
Waiting to take my engine out to do the smog pump delete to make it easier.

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post #12 of 13 (permalink) Old 10-06-2011 Thread Starter
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the only reason i took mine off was that it was locked up and didnt want to spend 150+ on smog pump and since its a daily driver i could not wait a week for a pully to get here. just a quick fix or whatever u want it to be!!!!
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Try this belt routing.

If You go with this routing the water pump will still be turning in the same direction, don't let the change in routing throw You off. compare the two. I did this to mine and the pump still turns the same way.
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