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I did a bad bad thing
Hi PC,
I
was checking the first value on the level low manifold in the steer bay because
of a leak there. When I took it off I noticed that the small O ring was missing all together from the value base so I
replaced it. I was tightening the # 10 tork screw back down and it stripped. It’s
possible that the valve was lose from this being stripped before I took it off,
but now for sure it won’t stay snug in place.Is
it possible to tap new threads or do I have to get a whole new 7 port manifold?Thanks for your time and help.
Fred
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7 Replies
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Prevost sells the entire assembly which includes all 5 solenoid valves. Or you can buy the valves or coils separately. I am not sure about the availability of the manifold base. I think it is a Norgren, but I am not sure.
There are ways to repair stripped threads ranging from stepping up to a larger screw and retapping the threaded hole to inserting a helicoil to plugging the hole, redrilling and retapping.
Before I did anything I would head on down to Fastenal or visit my McMaster Carr or WW Grainger catalog and see if I could find a screw one size up, a tap for the screw and see if that could cure the problem. My guess is that would be the easiest and cheapest approach to fixing it.
And Fred, every one of us that does our own work can regale the members of this forum with stuff we have done in the course of working on our own vehicles. So take comfort in knowing sometimes s*** happens.
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Fred, you do know you can buy each valve on the assembled stack individually from Prevost?
They also sell the parts separately, but may have to be ordered.
I recommend to carry a valve or parts along for emergency situations.
Buy a new valve and keep the old for spare parts.
JIM
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Fred,
I assume you’re talking about the valve
and they are mighty small screws. I suppose you could drill and tap, but
then you would probably have to drill out the valve mounting hole to
accommodate the bigger size screw as well. May want to think about
just replacing the whole assembly, at least you’ll have spare valves
and coils.
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If it is the seven port manifold that striped out and not the valve as i understand it , you could take the manifold off bring it to any good machine shop they cold weld or brase up the tiny striped hole than drill and tap it back to size, cost should be under 50 bucks and if they cant repair it you need to remove it anyways. What is is made of brass, steel , plastic , or some other material .? Also if you are able to tap it a bit larger plug hole with bolt with red loctite cut off at surface than drill and tap your plug to the proper size. Easier than cooking a turkey. good luck if a man built it another man can fix it … You may not even need to remove it if it is the first one.
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Thanks
for the reply’s.I
thought hard about tapping it. But you are right Tom it’s a small space and I think the
effort that it would take to do that probably wouldn’t be worth it. I put a
call into Prevost parts to check prices, the manifold with all the five values
attached is 3650 or there about (not too bad). But the guy in parts suggested
I call “Raoul” (I’m not sure if I got the name right) a technician at (800-957-7386).
I called and he said I should try “JB Webb…ya get it at NAPA” try to “epoxy it in
there”. I did just that tonight (it takes about four hours to dry) I figured it’s worth a
shot before I go and get a replacement. We are having Thanksgiving in the bus
tomorrow (tradition) so I’ll know soon if she holds.Happy
Thanksgiving everyone!Fred
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The product you wrote about is “J B Weld” and is sold at Napa. It is a amazing product and it works as they advertise. Make sure your repair area is clean and dry.
In my spare parts tub you will find a new package of JB Weld on my bus.
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Worth a try Fred, hope it gets you going.
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