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Now I know why [message #200369] Sat, 02 March 2013 17:28 Go to previous message
Joe Weir is currently offline  Joe Weir   United States
Messages: 769
Registered: February 2013
Location: Columbia, SC
Karma:
Senior Member
...repairs take so long on the GMC.

Jim B warned me that you don't repair, you rebuild. Compound the problem with only working saturdays when it is dry during daylight. The last three saturdays have been wet.

When we last left our intrepid, but slow, author, the radiator gave up in the driveway on its first voyage home. So I removed the radiator and had it "fixed" at the local radiator shop. They fixed it, but still it looks like it is just waiting to get 100 miles from home to explode.

So, I decide to procure a new radiator. Well, if the radiator is that bad, how about the water pump? And what about the 300 feet of crusty 3/4" heater hose thoughtfully routed through the engine compartment and under the coach so that it rubs on every sharp edge? So I am in essence going backwards, disassembling more and re-assembling less. Even I can recognize a disturbing trend.

Lets not even discuss the miniguns behind the grille project...

That said, there are some interesting things about the heater hose routing I cannot figure out because of previous repairs. All of the hose is 3/4. There are two connections to the heater core, one is a 3/4 and the other a 5/8. They both go back to nylon 5/8ths "Y" connectors at the front and rear of the engine.

Is there supposed to be a stepdown to 5/8 before the "Y"?

The nylon "Y"s look to be solid, but heat cycling has to be an issue, no? Were the Nylon Y's original? Do they hold up?

Any thoughts or tips here would be greatly appreciated

I found some brass pex "T"s that are 5/8 od to use on the 5/8 line, but the 3/4 to 5/8 by torquing down the hose clamp thing seems sketch.

The good news is that the new captain's chairs are in. The ones that came in the coach were mounted precariously with 4" bolts at the front because the front of the seat was thinner than the rear, so it would not sit level mounted flat. The old seats were somewhat ratty anyway. They are available free to a good home, useful if you drive uphill all the time.

Thanks in advance,

Joe

76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center... Columbia, SC.

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