Chassis heat problems

[Pete Masterson]

The only thought I have, and it isn't a pleasant one, is that somewhere in a hose between the rear and front of the coach there is a blockage. As coolant lines aged, sometimes the internal lining comes apart, causing an obstruction or blockage. However, the external appearance of the hose does not make it obvious where this might have occurred -- if it's the problem at all.

 

My guess is to open a connection toward the front of the coach and see if the coolant is coming through the line (catch it in a big bucket and shut down the engine very quickly once you've determined there is flow). Assuming the line from rear to front is open, then check the line from the front to the rear (checking near where it returns to the engine cooling loop). 

The second guess is that the forward radiator itself is somehow blocked or clogged. Testing for the water flow (as above) might help narrow down that possibility.

Pete Masterson

'95 Blue Bird Wanderlodge WBDA 42

El Sobrante CA

"aeonix1@mac.com"

On Mar 15, 2008, at 4:45 PM, Don Bradner wrote:

Well, it is back to the drawing board. The valve has been removed and replaced, and the voltage tested. What I learned:

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Looking for new possiblities, if anyone has any ideas.

Don Bradner

90 PT40 "Blue Thunder"

Eureka, CA

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