For the smaller ones and hard to squirt at, I take a q-tip with soapy water. It doesnt always bubble, but you can hear the hiss change as the liquid hits a leak.
I cant tolerate leaks. Thats why I hate plumbing....really hate plumbing.
Leaky Dash Tractor valve?
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Hanadarko, Aug 4, 2010.
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--- I presumed it was metal. It is NOT!
This thing IS plastic...and I really cranked on the brass fittings too. I wonder how I didnt damage it...
The original one had pipe dope gook on the threads, so I had figured tape was OK to use. It didnt push the tape out at all (At least not OUTWARD) but I wrap the tape really tight into the brass threads.
Now what...? - since I am replacing all of these parts, what is the RECOMMENDED way to reattach these? - I used tape and simply turned them until the bottomed out...I used a needle nose vise-grips, since I cant find a 19mm THIN wrench..so although the valve says MAX 10 ft lbs of torque, I probably didnt go TOO much father since I was using a 'hack' of a tool to tighten. -
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You may want to keep your old valve. It is still serviceable with a kit.
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Great minds think alike -
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Here's a thought...
When I first started back driving a couple years ago, the company I applied at didn't really have any trucks available, sooooo.... they exhumed the body of an old 9200 and sent it off to Dr. Frankenstein to be revived. They got its' heart beating again, but it leaked more oil than the Exxon Valdez and the air compressor was doing all it could do to keep the brakes released (with all the air leaks).
Now I've never seen a steam powered locomotive in person before, but I'm pretty sure all the air leaks that truck had, probably closely resembled the sound of one running at full tilt. Thing is though, after driving it a while, a lot of the leaks cured themselves. The o-rings and stuff probably got a little crusty while the truck was sitting and just needed to be used a little before they sealed up again.
If yours has been sitting a while, it might do the same. -
I contacted Bendix today. (I was bored...)
"When reconnecting threaded ports use a liquid thread sealing compound, attach the air line until it is hand tight and then turn approximately one and a half turns further (or using a maximum of 10 ft.- lbs. torque - Note: over torquing will crack the port)."
...there it is from the company themselves. I have 2 tubes of pipe dope. One has TFE and is the recommended one as the "regular" pipe dope says not to use with Plastics or Nylon.
Here is the photo of the Eaton Weatherhead fastener that replaces the old original black unit:
Last edited: Aug 11, 2010
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Hi people,
I have been having similar issues as what the OP posted. When I push tractor brakes and drive around the truck I hear a low hissing sound from the dashboard. I tried twisting the yellow valve and it did not go away however, when you drive its more then when it is parked.
Tomorrow I will be soaping the air system to see if I could find it. Last week I got the foot valve replace because the brakes were not working fine.
I remember, once in a volvo my mechanic replaces the Quick Release Valve and the problem went away. This time I want to try myself and see if it is Quick Release Value or the valve in the dashboard...would I be able to replace myself? I am good with my hands and work on cars and stuff. What are the precautions I have to take especially with the fittings?
Please let me know, thank you.
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