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Topic: Air leak on throttle of my 1995 U-240 (Read 384 times) previous topic - next topic

Air leak on throttle of my 1995 U-240

I have a steady leak from the throttle base. Can not find any info on the pedal assembly. At 22 years old probably needs rebuilding.

I have another air leak on the switch behind the air gauge, any thoughts where to get a new one.

Working out the bugs one at a time LOL
1995 U-240, her name is Clarabell, "The Lady's Got Class"
Traveling with my lovely wife "Precious", two Australian Shepherds, Ko Ko and Molly momma's baby Scooter, a Sweet Yorkie and a 14 pound cat.
Full timing since November 1, 2019, seeing this great country of ours and visiting the people that have made it that way.

Facebook member of GRAN VILLA Motor Homes Showing These Great Ole Gals in All Their Splendor.

GOD BLESS and SAFE TRAVELS

Re: Air leak on throttle of my 1995 U-240

Reply #1 –

Here is the link on my rebuild of our throttle valve.  Hopefully, it is the same valve in your coach.

Williams Controls WM453109 Air Throttle Valve

Might need a photo of "the switch behind the air gauge" to properly identify what it is.  On our coach there is a solenoid valve that controls air flow to the air horns.  Is that what you are looking at?  It is a Hadley solenoid, part #H00550B.  They are widely available.  Google search for the best price if you decide to buy one.

Amazon.com: Hadley Horns H00550B 12 Volt Tank Mount Solenoid: Automotive

On any of these old original air system switches and valves, if you can find a identifying part number, then a new part can usually be found by searching online with Google.  Even if the original switch is no longer available, a suitable substitute will often be available.

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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: Air leak on throttle of my 1995 U-240

Reply #2 –
Quote from: POPPASMURFF#1 –
I have a steady leak from the throttle base. Can not find any info on the pedal assembly.

This should be what you need Williams Controls repair kit #117103 but double check to make sure as we are on the road and this is by memory.

Pamela & Mike

Chuck beat us to the post button but this may help anyway.
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Air leak on throttle of my 1995 U-240

Reply #3 –
Here is the link to my post when I had the same problem 2 years ago.

Lots of help available here on the forum!

I refer to Chuck on all my air problems.
He will know what to do or what not to do!  8)



Accelerator pedal air leak ???
Justin & Cathy Byrd
1995 U280 "Old Faithful"
36' Build #4673
C8.3 Cummins
Allison MD3060R 6 speed - retarder
Powertech 10KW  4cyl Kubota

Re: Air leak on throttle of my 1995 U-240

Reply #4 –
I checked the link to the rebuild kit in my old thread (above) and found it is "dead".  Below is a pretty good price on the kit:

WILLIAMS CONTROLS MODEL R090DX, PART 117103, VOLVO 1113512, DOT REPAIR KIT |...
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: Air leak on throttle of my 1995 U-240

Reply #5 –
If you need the whole thing here it is.

116731 by WILLIAMS CONTROLS - Pneumatic Throttle Pedal
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