| Re: [GMCnet] Successful Voyage! [message #318071 is a reply to message #318059] |
Sat, 27 May 2017 16:05   |
Richard Denney
Messages: 920
Registered: April 2010
Karma:
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Senior Member |
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I took the liberty of paraphrasing the quote.
If these little problems didn't keep you from declaring success, then I
predict many happy years with your GMC.
First priority: Fix the exhaust leaks. Jetting exhaust is hot and
destructive. And poisonous. It can burn through wires, char the floor, that
sort of thing.
The fuel tank drip is easy--don't try to fill it full. My fuel tank is
bigger than my bladder even at 8 mpg. You might find the next time it
doesn't go quite so full when you fill it anyway--you'll have fuel in the
vent line that will slow things down a bit. Mine leaks usually in the first
fillup--everything is dry--but in my case I suspect a leaky sender; I know
both are old and suspect. I have new ones ready to install, but I'm no more
enthusiastic about dropping the tanks than you are. Gotta do it, though.
The fill tubes I installed in 2004 are now rotted.
The leak in the city water connection has several possible causes, as you
have read. My recommendation is: don't use it. Just work off your tank,
refilling as needed. Here's why: a leak when working off your tank is a
30-gallon problem. A leak when on city water may be a thousand gallons if
you aren't at the coach when it occurs. City water is often at 80 psi, but
your pump will be more like 30, so blowing a fitting is less likely in the
first place. That strategy allows you to defer that problem, too, if it is
leak-free when not on city water.
The Onan can be a hobby in and of itself. I'll say no more.
When I bought my coach, a wise old GMCer listed a few essentials. One was a
set of shrader valves for the bags, which I have somewhere. The other was a
macerator. That is worth buying and installing right from the start. A
different old GMCer has given the same advice--you'll thank yourself for
listening.
They make rubber gloves for chemical workers that come nearly to the elbow.
That's the minimum I will use when dealing with the stinky slinky. But my
20 feet of semi-permanently attached industrial-grade full-diameter 3/4"
macerator hose lives in its own PVC pipe strapped to the bottom of the
coach, and its gasketed brass screw cap keeps all that clean.
So, the exhaust is the only thing really requiring attention.
There's nothing like a nice drive in the hill country! I'm surprised Garner
wasn't overcrowded--I never could get reservations there if I didn't work
far in advance.
Rick "who lived in Austin and San Antonio for a dozen years, before the
GMC, though" Denney
On Sat, May 27, 2017 at 3:01 PM Adam Metzger wrote:
> Hey All-
>
> Just wanted to share that we FINALLY took the GMC out on the road and had
> a great trip!
>
> ...Nice drive through the Texas Hill Country.
>
> ...Small drip from the front tank when all the way filled.
>
> ...I do have a exhaust manifold crack, and it can be heard. I discovered a
> hole in the exhaust right under the door, so there's that...
> ...Loud water pump.
> ...Leak in the city water connection.
>
> ...Genset worked well until it didn't, and was low on oil.
>
> ...Backend is low and 3" dump cover is vulnerable.
>
> ...Thetford valve is unreliable and what it holds back is disgusting.
>
> All in all a good trip. I was absolutely dreading it, to be honest.
> Waiting every second for that "sound" or "thump".
>
> Relationships are built on trust.
>
--
Rick Denney
73 x-Glacier 230 "Jaws"
Off-list email to rick at rickdenney dot com
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