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Topic: 91 GV throttle petal removal (Read 529 times) previous topic - next topic

91 GV throttle petal removal

How do you remove the throttle petal on my 91 Cat 3208 air operated throttle. I couldn't find any thing in search mode. It should be easy, but if some one
Has done it, thank you for sharing your experience.  Have a great day. ----  Fritz
Fritz & Kathy Johnson
1991 36'

Re: 91 GV throttle petal removal

Reply #1 –
Try the thread linked below.  If you scroll through from start to finish, I think it will answer your questions.

Williams Controls WM453109 Air Throttle Valve
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: 91 GV throttle petal removal

Reply #2 –
Thanks Chuck, looks like I have a tough task ahead of me!  Have a great day  ----  Fritz
Fritz & Kathy Johnson
1991 36'

Re: 91 GV throttle petal removal

Reply #3 –
Quote from: fkjohns6083 –
How do you remove the throttle petal on my 91 Cat 3208 air operated throttle. I couldn't find any thing in search mode. It should be easy, but if some one
Has done it, thank you for sharing your experience.  Have a great day. ----  Fritz
Why do you want to remove the throttle pedal?  In my "What if" file i have a plan outlined if the throttle cable and air cylinder come a crapper.
1992 Foretravel Grand Villa
U225 SBID Build No. 4134
1986 Rockwood Driftwood
1968 S.I.A.T.A. Spring
1962 Studebaker Lark
1986 Honda VF700C
1983 Honda VF750C
Charlie, the Dog was broken out of jail 24 Oct 2023
N1RPN
AA1OH (H)e who must be obeyed.

Re: 91 GV throttle petal removal

Reply #4 –
I have an air leak coming from around the throttle pedal.  I can't tell exactly where, but I can feel it around the boot.  I need to check from under the coach and see what (if anything) is going on with air connectors.  From what I can determine, there doesn't seem to be a way for air to get into the cab from a leaky fitting, but I need to confirm that.  Have a great day  ----  Fritz
Fritz & Kathy Johnson
1991 36'

Re: 91 GV throttle petal removal

Reply #5 –
I predict that you will find the leak is in the valve itself - not from the air line connectors below the floor.

The symptoms you describe exactly match those I reported in my thread linked up above.
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: 91 GV throttle petal removal

Reply #6 –
Quote from: Chuck & Jeannie –
I predict that you will find the leak is in the valve itself - not from the air line connectors below the floor.
Known as a treadle valve and does have a history of leaking on vehicles.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: 91 GV throttle petal removal

Reply #7 –
It was not the treadle valve (which is the brake control valve), it was the throttle control valve (accelerator valve).  I replaced it with a new valve obtained from "brake systems inc" jn Portland Ore.  On my rig, the valve would not come out into the cab because the air hoses were too short.  When I put it all back in, I added an extension onto the hoses so that it would pull up into the cab if I ever needed to do it again.  Have a great day  ----  Fritz
Fritz & Kathy Johnson
1991 36'

Re: 91 GV throttle petal removal

Reply #8 –
It is still referred as a treadle valve even though it if for throttle.

 112479 by WILLIAMS CONTROLS - TREADLE VALVE 112479
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean
 

Re: 91 GV throttle petal removal

Reply #9 –
Could well be  -----  My air diagram calls the brake a treadle valve and the accelerator valve a throttle control valve.  It only matters if you are getting a replacement valve to be sure that you are asking for the right one.  Have a great day ----  Fritz
Fritz & Kathy Johnson
1991 36'