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-   -   Mystery hose (https://www.wanderlodgeownersgroup.com/forums/showthread.php?t=27511)

Ernst 12-23-2016 05:53 AM

Mystery hose
 
I keep finding new challenges/opportunities in my 1976 32' FC .....

On the right side (co-pilot's) of the engine there are three steel (?) pipes, running to the rear, hardly visible inside the right hand side chassis beam.
There is the fuel supply and the fuel return.
The third has about a foot of rubber hose connected to it, with on the other side a female "Orion-like" air connector.

I don't think it is meant for an external air supply , because behind the hatch, close to the LPG tank, just in front of the side door, is a Schrader valve which looks original. Now that I have declogged it, it can be used to pressure up the brakes (if you are not in a hurry).

But what is this mystery hose meant for??? Does anyone have something similar? :confused:

giderich 12-23-2016 09:09 AM

My guess is that an air connection (schrader valve) was added by a towing operator to allow airing up the coach for towing purposes.

https://www.google.com/search?q=schr...-fW_bbJIGfM%3A

Ernst 12-23-2016 09:21 AM

That would be useful, but....
- it is not a Schrader valve, but an Orion air connector;
- the steel tube is obviously original (from 1976).

It came to my mind that an easy way of bleeding fuel lines would be putting air pressure on the tank. But then all 1976 Caterpillars would have such a provision.

Rick 12-23-2016 01:24 PM

Ernst, I would bet its for airing your tires up. You plug the male into the valve to take air out of the system. A picture would help us.

Ernst 12-23-2016 01:31 PM

Quote:

Originally Posted by Rick (Post 364820)
A picture would help us.

I'll try to take some pictures tomorrow, when it's light again.

Ernst 12-24-2016 11:34 AM

2 Attachment(s)
Here are the loose hanging coupling and the way the hose disappears to the rear.... Does it look familiar to any of you?

Rick 12-24-2016 11:58 AM

I don't have a clue what that is. It is obvious its been added and not factory. I would just remove the two hose clamps and see what comes out. Might be an old fuel line for a diesel fired something.

Ernst 02-12-2020 01:03 PM

Thanks for all the suggestions.
The bus has been in a workshop for several weeks (waiting for parts from the US) and a mechanic found out there was a connection between this hose and a brake air tank. Probably because of leaks in the past, the hose was bent to close it.

I think Giderich was right. Only his towing suggestion would explain the position of the coupling.

Good Ole Bird 02-12-2020 04:44 PM

Quote:

Originally Posted by Ernst (Post 477164)
Thanks for all the suggestions.
The bus has been in a workshop for several weeks.


Weeks ??




:D

Ernst 02-12-2020 05:13 PM

Actually, it was more like two months, i.e. eight weeks :-)
Eight new injectors had to be shipped from the States, via Customs (some weeks delay) and Caterpillar Germany (Zeppelin). When the mechanic was waiting for the parts, he adjusted all valves.
The engine now runs more smoothly, but IMHO still smokes too much. (In the past the previous owner has overfilled the engine with oil.)


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