Notices
1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks
Sponsored by:
Sponsored by:

SMOG PUMP

Thread Tools
 
Search this Thread
 
  #1  
Old 02-24-2010, 08:37 AM
jjohnson1179's Avatar
jjohnson1179
jjohnson1179 is offline
New User
Thread Starter
Join Date: Feb 2010
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
SMOG PUMP

THE PICTRUE BELOW IS WHAT I HAVE. IS IT POSSIBLE TO JUST REMOVE THE PUMP AND GET A SHORTER BELT, OR IS THERE SOMETHING ELSE I HAVE TO DO. LIKE INSTALL SOME SORT OF NEW PULLEY WHERE THE PUMP IS BY THE WAY IT IS A 93 FORD F-250 WITH A 351W IN IT
 
  #2  
Old 02-24-2010, 09:26 AM
Conanski's Avatar
Conanski
Conanski is offline
FTE Legend
Join Date: Jun 2006
Location: Ottawa, Ontario
Posts: 30,898
Likes: 0
Received 951 Likes on 755 Posts
You need an idler pulley with that setup due to the position of the tensioner. Is your air pump seized? If so take it apart and gut it and then put it back on as an idler.
 
  #3  
Old 02-24-2010, 09:42 AM
skyfox10's Avatar
skyfox10
skyfox10 is offline
Posting Guru
Join Date: Jun 2003
Location: southwest michigan
Posts: 2,314
Likes: 0
Received 0 Likes on 0 Posts
Thanks for using my picture

I did exactly what you were talking about. I tried many different length belts and it was a nightmare. It make then tensioner do almost nothing. I couldn't use my AC because the extra stain would cause the belt to fall off. This would also happen if I pegged the power steering.
 
  #4  
Old 02-24-2010, 10:13 AM
cjben's Avatar
cjben
cjben is offline
Lead Driver

Join Date: Apr 2001
Location: Midwest
Posts: 6,335
Likes: 0
Received 5 Likes on 5 Posts
I can't remember,is that the same set up as a 302? I used a shorter belt to bypass my smog pump,and it has worked just fine,belt hasn't jumped off and is plenty tight. I know it will be different for a 351w,but I used a goodyear gatorback 4060915 for my 95 5.0.
 
  #5  
Old 02-24-2010, 11:05 AM
jjohnson1179's Avatar
jjohnson1179
jjohnson1179 is offline
New User
Thread Starter
Join Date: Feb 2010
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by skyfox10
Thanks for using my picture

I did exactly what you were talking about. I tried many different length belts and it was a nightmare. It make then tensioner do almost nothing. I couldn't use my AC because the extra stain would cause the belt to fall off. This would also happen if I pegged the power steering.
lol i didnt have my truck here at work and saw you pic thanks
 
  #6  
Old 02-24-2010, 11:07 AM
jjohnson1179's Avatar
jjohnson1179
jjohnson1179 is offline
New User
Thread Starter
Join Date: Feb 2010
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Conanski
You need an idler pulley with that setup due to the position of the tensioner. Is your air pump seized? If so take it apart and gut it and then put it back on as an idler.
it was seized up a couple years ago so i took it apart and got it working and evey since then it is very nosiy. just tired of hearing it
 
  #7  
Old 02-24-2010, 11:14 AM
Prozon's Avatar
Prozon
Prozon is offline
Postmaster
Join Date: Aug 2008
Location: Olympia
Posts: 4,092
Likes: 0
Received 0 Likes on 0 Posts
With my 460 I just removed it and put a smaller belt on. I do not have all those tensioner pullies though. I just have an idler where the A/C pump would be. My crank pulley and alternator have a belt, just by-passed the smog pump. And lucky me, no tensioners to mess anything up lol.
 
  #8  
Old 02-24-2010, 12:21 PM
skyfox10's Avatar
skyfox10
skyfox10 is offline
Posting Guru
Join Date: Jun 2003
Location: southwest michigan
Posts: 2,314
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by cjben
I can't remember,is that the same set up as a 302? I used a shorter belt to bypass my smog pump,and it has worked just fine,belt hasn't jumped off and is plenty tight. I know it will be different for a 351w,but I used a goodyear gatorback 4060915 for my 95 5.0.
351 & 302 are the same, as shown on the sticker. Older trucks have then tensioner up where the idle is on these trucks, that works fine. I heard someone say that you could actaully move your tensioner up to where the idler is (so it would be like the older trucks), and then it would work fine.

Also, I did try a Gotorback, and it worked the best, I might have lost it once compared to regularly with the other belts. I'll have the check and see if I used the same part number.
 
  #9  
Old 02-24-2010, 12:22 PM
skyfox10's Avatar
skyfox10
skyfox10 is offline
Posting Guru
Join Date: Jun 2003
Location: southwest michigan
Posts: 2,314
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by jjohnson1179
lol i didnt have my truck here at work and saw you pic thanks
You very welcome.
 
  #10  
Old 02-24-2010, 01:39 PM
jjohnson1179's Avatar
jjohnson1179
jjohnson1179 is offline
New User
Thread Starter
Join Date: Feb 2010
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
WHAT IS A GOTORBACK
 
  #11  
Old 02-24-2010, 01:54 PM
Hitokori's Avatar
Hitokori
Hitokori is offline
Posting Guru
Join Date: Nov 2009
Posts: 2,244
Likes: 0
Received 0 Likes on 0 Posts
its the back on an aligator
 
  #12  
Old 02-24-2010, 02:22 PM
strokinout's Avatar
strokinout
strokinout is offline
Senior User
Join Date: Apr 2008
Posts: 227
Received 0 Likes on 0 Posts
I know it's kind of a newb question, what is bypassing the smog pump good for?
 
  #13  
Old 02-24-2010, 02:32 PM
zxwut?'s Avatar
zxwut?
zxwut? is offline
Fleet Mechanic
Join Date: Jan 2009
Location: Fort Worth
Posts: 1,964
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by strokinout
I know it's kind of a newb question, what is bypassing the smog pump good for?
Nothing. One less thing to seize up, I suppose.
 
  #14  
Old 02-25-2010, 05:42 AM
TexasGuy001's Avatar
TexasGuy001
TexasGuy001 is offline
Hotshot
Join Date: Sep 2001
Posts: 11,920
Received 205 Likes on 165 Posts
I would just replace the smog pump, especially if you still have cats. There is not much if anything to be gained by removing it.
 
  #15  
Old 02-25-2010, 07:14 AM
Scndsin's Avatar
Scndsin
Scndsin is online now
FTE Chapter Leader

Join Date: May 2006
Location: Central Mississippi
Posts: 11,174
Received 760 Likes on 542 Posts
I recently removed my "soon to lock up" air pump on my 5.8. While shopping for the plastic idlers (which had developed flat spots) I found that there were 2 different types available for the tensioner. 150s got plastic, 250s got metal which is what I bought.

Initially, I tested alternate routing the original belt. By going "over" the fixed idler, under the tensioner, then around the Alt, then back to the crank. This actually worked. However, the Alt would squeal for few seconds when first cranked and when put under heavy electrical load.


Since I didn't care for that, I took a length of 3/8ths-7/16ths heavy nylon rope, routing the rope under the tensioner first (after it comes off the AC compressor) completely by-passing the upper idler, then looping the Alt before returning to the crank.

I took the rope, hung it on a nail & stretched it out tight, then tacked another nail at the bottom of the loop. This gave me a length of 47-1/2 inside the loop which I doubled to give me a 95 inch starting point.

I used my locally owned parts house to source the belt. Took 3 trips, but finally wound up with a 96.08 inch belt that gave the best tension & no noise. After a couple hundred miles, I've had no problems.

This past weekend I did some work on a friends 93 Taurus. I found that the tensioner's idler has the same bearing diameter & depth and is ribbed & shouldered like the Alt pully. I plan on using this if I develop belt throwing issues.

Hope this helps someone.
 


Quick Reply: SMOG PUMP



All times are GMT -5. The time now is 07:08 PM.