New Smog pump question
Thread Starter
|
Lead Driver
Joined: Oct 2016
Posts: 6,185
Likes: 633
From: Houston/Sugar Land
New Smog pump question
At first I thought of getting a new smog pump since my bearing is going out in the present one. I started thinking about deleting it and I know many delete these but I would just prefer to keep the pump in there. I told a mechanic buddy that I was considering removing only the pulley and just getting a shorter belt. He said if I did, it would clog the cat. I told him the cat was gutted by the PO and he said he didn't think I would have a problem. Is this method doable without consequences? I think the belt would have to be about 47". Thanks Sandy
Thread Starter
|
Lead Driver
Joined: Oct 2016
Posts: 6,185
Likes: 633
From: Houston/Sugar Land
Our state Texas only has a safety inspection for my year 1991. Are you still in Austin? Thanks for the reply.
Fleet Mechanic
Joined: Aug 2015
Posts: 1,829
Likes: 362
From: Candy Mountain
It could maybe throw the fuel mixture off a little off under some conditions but I would be surprised if you noticed anything in the driver seat. Leave the control solenoids hooked up electrically. If you want to feel better about emissions you can get a modern cat.
If you sell the truck the next owner may have problems depending on where they take the truck.
If you sell the truck the next owner may have problems depending on where they take the truck.
Thread Starter
|
Lead Driver
Joined: Oct 2016
Posts: 6,185
Likes: 633
From: Houston/Sugar Land
It could maybe throw the fuel mixture off a little off under some conditions but I would be surprised if you noticed anything in the driver seat. Leave the control solenoids hooked up electrically. If you want to feel better about emissions you can get a modern cat.
If you sell the truck the next owner may have problems depending on where they take the truck.
If you sell the truck the next owner may have problems depending on where they take the truck.
Cargo Master
Joined: Mar 2007
Posts: 2,935
Likes: 34
From: Arcadia, Fla
On my 95 E350 with 7.5L engine, the smog pump locked up and killed the belt. I took off the pulley of the smog pump and used the old belt to measure the new shorter size belt needed. I have no issues over a year and the cat is still working fine too.
I did not take the pump out just left it and the belt clears with plenty of room. I will remove that thing once I figure out how to add a hydro pump so I can remote mount a rear A/C compressor and 2nd alternator. There's just no room inside a E350 van engine bay to add extra items.....
I did not take the pump out just left it and the belt clears with plenty of room. I will remove that thing once I figure out how to add a hydro pump so I can remote mount a rear A/C compressor and 2nd alternator. There's just no room inside a E350 van engine bay to add extra items.....
Trending Topics
Fleet Mechanic
Joined: Aug 2015
Posts: 1,829
Likes: 362
From: Candy Mountain
If you remove the solenoids it will throw a code/CEL. The EEC won't realize there is no vacuum present at the solenoid but it will realize the solenoid is not there all together.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Lead Driver
Joined: Feb 2002
Posts: 7,957
Likes: 592
From: Greater Austin, Texas
Yes I am still in Austin. You are correct there is no emissions test for 1991 MY in Texas. I did leave my solenoids and such in place when I removed my air pump and plumbing and I have no CEL. I went to a place in Marble Falls called "Rowdy Flanagans Muffler Shop" and he custom built a Y-pipe to replace that giant factory cat. He does very nice work and it's a much cleaner look.
Thread Starter
|
Lead Driver
Joined: Oct 2016
Posts: 6,185
Likes: 633
From: Houston/Sugar Land
Removed the stock belt and smog pulley. I left every thing else as is. I replaced the stock belt with a Gates 47 5/8" . Number KO60470. Fit is great and no cel and NO bearing noise. This was a 15 min job and I am glad I didn't go the total delete route. There is no reason I can see where the total delete is better than a belt swap in my case ,at least at this time. 
Thanks again to those that responded. Sandy
Thanks again to those that responded. Sandy
Tuned
Joined: Jun 2015
Posts: 354
Likes: 8
From: Winchester, KY,USA
I just removed the entire smog pump and all the other hoses and piping and installed this.....
https://static.summitracing.com/glob...o-68110_ml.jpg
and kept the factory belt size.....
https://static.summitracing.com/glob...o-68110_ml.jpg
and kept the factory belt size.....
Thread
Thread Starter
Forum
Replies
Last Post
buzzy613
1987 - 1996 F150 & Larger F-Series Trucks
11
Sep 20, 2012 11:15 PM
dferg250
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
2
Dec 24, 2011 05:23 AM
97rangerguy
1987 - 1996 F150 & Larger F-Series Trucks
5
Jun 29, 2005 03:10 AM