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andy5053
Dodge Dakota
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3/04/2004
21:44:43
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 Subject: Smog air pump
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Message:
OK all i wanna knwo is can i take off the air/smog pump on my 1990 3.9 pre mag dakota with out haveing to do anytihng else to the truck besides unbolting it, and removing the belt?
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GraphiteDak
GenIII
3/05/2004
00:00:21
|  RE: Smog air pump
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Message:
I am not sure on the exact specifics on THAT engine.
However, usually smog pumps pump air into the exhaust stream. So if you just pull the belt and or pump make sure you remove the lines to the exhaust and cap them. If you don't HOT exhaust gases will come through these lines, eat up any rubber fittings, etc.
Been there done that.
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NeverDie
Dodge Dakota
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3/05/2004
13:11:25
| RE: Smog air pump
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Message:
andy5053 i was thinking the same thing for mine (91' 5.2). the only thing i thought would be bad was if there were a sensor for the computer relating to the smog pump. i was also goin to remove my AC(i already never use it, i blast the heat full time). let me know if you have any problems.
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bakindak
Dodge Dakota
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3/05/2004
21:16:38
| RE: Smog air pump
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Message:
As long as you havent got smog police in your area you should be ok
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not qiute
Dodge Dakota
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3/05/2004
23:24:24
| RE: Smog air pump
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Message:
the smog pump pumps air into the exhaust system on these early cat controlled systems, and the O2 sensors really go to heck and take your gas milage with it if you remove them. On another forun I have seen 87 octain selling for as much as $2.22 a gallon and this is only early March.
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91DakotaFreak
Dodge Dakota
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3/08/2004
18:16:50
| RE: Smog air pump
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Message:
incorrect i have done this mod on my 91 and have not had anyproblems since. All you need is a belt tensioner pulley off of the magnum as well as the bolt that was in the magnum pulley and thats it you do need to find the correct size belt to get rid of it. You will need to plug the hole in the passenger side exhaust manifold. if you can get the bolt out that hild the air tube in then you can get a block of plate from a dealership or make your own. then cut the tube down near the cat and weld it shut or just clamp it and youll be all set and you might even see a gain in mileage
Good luck
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jd
Dodge Dakota
JOIN HERE
3/09/2004
02:22:33
| RE: Smog air pump
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Message:
i have a 90 dak 4x4 with 400+ thou kms on it and one of the first things i did to it a year ago was rip of that stupid thing, it siezed up and burnt the belt any ways
it had its own belt on my truck so i just had to replace the bolt that went through the water pump mount.. there will be no computer problems as long as there isnt a o2 sens BEHIND the cat.. and if there insnt you can even replace the cat with a chunk of pipe from canadian tire ......this is what i did on mine and i live in alberta canada eh
so i didnt have to wory about smog police....
the only problem i could see if you removed the air pump and left the cat is the cat MAY plug up....if you dont drive it hard once in a while cuz the idea of the air pump is that it pumps in extre oxygen to help get the temps up in the cat to more completly burn the unburnt fuel
91dakfreak its non magnum the mag front accessory drive parts do not interchange with non mag..
later
jd
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91DakotaFreak
Dodge Dakota
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3/09/2004
22:58:04
| RE: Smog air pump
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i know that the pulley tensioner doesnt interchange but the pulley itself will i have it on my truck check my original post
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jd
Dodge Dakota
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3/10/2004
02:06:40
| RE: Smog air pump
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serpemtine belt vs vee belt ???????????
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91DakotaFreak
Dodge Dakota
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3/10/2004
22:05:31
| RE: Smog air pump
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Message:
ok your right on that part i forgot that the 90 was a v belt and not serpentine i admit it i was wrong! sorry I guess u didnt read the first post correctly my bad
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jd
Dodge Dakota
JOIN HERE
3/14/2004
18:21:35
| RE: Smog air pump
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Message:
im gonna put a 5.2 in my 1990 and in knowing that in the 1990 it was never an option ive been doing a lot of research, and a lot of it done on these forums they are great guys and gals keep up the great info (most of the time)
later
jd
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