Home » Public Forums » GMCnet » [GMCnet] Trip Report - RIC > VAB Round trip (generator and vent cap)
| [GMCnet] Trip Report - RIC > VAB Round trip (generator and vent cap) [message #93984] |
Fri, 30 July 2010 11:21  |
Eddie Pettit
Messages: 71
Registered: May 2009
Karma: 0
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Even though the temps were near or over 100F, the trip itself was very
uneventful. This time, I took the interstate to Virginia Beach and back. The
GMC ran down the road and behaved as expected, which always makes for a good
time. As a matter of fact, I find it to be a lot of fun to drive. We were
picking my son up in Virginia Beach so I didn't have him with me but instead
had a friend of his with me on this trip. He thought it was great to sit up
so high without a hood blocking your view.
I'd never stopped at an inspection station before but there was one before
the tunnel on I64. I had stopped the guy came out of the booth, complimented
me on the nice old RV, "Wow, I don't see many of those. It looks great." He
just want me to open the tank door and show him that the propane was off. On
the return trip, when I stopped for inspection the woman manning the booth,
didn't realize that the Virginia Antique tags were the actual tags for the
vehicle. As she was staring right at the plate, "Is that your tag number?"
She also had no idea what make the RV was. "Who makes this?" I was amused by
both inquiries, provided answers and went on my merry way...
I did have one problem, the generator would start but would not stay
running. It'd start, with starting fluid as it always has since I've owned
it (the past year), but would only run a few seconds, until the fluid was
gone and then stall. The generator stopped on the trip back from Hershey a
few weeks ago, but I attributed that to low fuel and didn't try to restart
it once I refueled because temps had dropped and the dash air was
sufficient. Not a huge problem, it just made the trip a little hotter than
it needed. Once we were back home, I started digging into the generator
problem and determined that fuel was coming out of the fuel pump, but not
making it up to the carb. The small line that delivers the fuel was brittle
and majorly cracked, however, it didn't leave fuel.
http://tinyurl.com/2cx7op4
This line has special ends, I haven't yet determined where to get another
one (I really haven't even looked), but I was able to slide the ends into
some fuel injection line that I had and clamped them on.
http://tinyurl.com/2ar3kby
The generator fires right up and doesn't need starting fluid to start. I
always wondered about why it needed that when it had a fuel pump that you
turned on first. Oh, while I'm at it, I'll mention that you shouldn't fire
up the generator without the dipstick in the oil fill tube, unless, of
course you like an oil geyser...
Another thing that I noticed after the trip, I don't know when this
occurred, it may have occurred on the previous Hershey trip as well, is that
one of my vent caps on the roof was gone. I'm guessing a tree branch caught
it or some crazy wind took it away. I had my wife stop by the RV shop today
and picked up a replacement for $6. It was slightly different than the other
one up there, so I had her grab 2 so at least they match... It also gives me
a spare now.
The GMC gets a break this weekend and we head back up to Hershey PA next
weekend.
Eddie Pettit
73 GMC CL - The Jolly Roger
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| Re: [GMCnet] Trip Report - RIC > VAB Round trip (generator and vent cap) [message #93991 is a reply to message #93984] |
Fri, 30 July 2010 11:55  |
bobby5832708
Messages: 237
Registered: November 2006
Location: Winter Springs FL
Karma: 3
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Senior Member |
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Eddie,
When I got my GMC a few years ago the Onan 6000 fuel line looked about like yours did.
The ports in both the carb and fuel pump are 1/8 NPT. I bought some brass fittings at Home Depot, a 1/8 male thread to 1/4 hose barb for the carb and a 1/8 90 plus a 1/8 to 1/4 hose barb for the fuel pump. This way I can use standard 1/4 fuel hose to connect the two and in a few years when I replace the hose again, assuming the Onan lasts for another few years, it doesn't cost whatever Onan wants for a special fuel hose assembly that may or may not be available. I've thought about making a metal line with flare fittings one of these days, but it just isn't on my to-do list yet.
It's been working fine this way for just over 3 years now and the Gates fuel hose is still in excellent condition.
JWID
Bob Heller
2017 Winnebago 29VE
Winter Springs FL
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| Re: [GMCnet] Trip Report - RIC > VAB Round trip (generator and vent cap) [message #94017 is a reply to message #93984] |
Fri, 30 July 2010 17:26 |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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Senior Member |
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| Eddie Pettit wrote on Fri, 30 July 2010 09:21 |
<snipped>... but I was able to slide the ends into
some fuel injection line that I had and clamped them on.
http://tinyurl.com/2ar3kby
The generator fires right up and doesn't need starting fluid to start. I
always wondered about why it needed that when it had a fuel pump that you
turned on first. Oh, while I'm at it, I'll mention that you shouldn't fire
up the generator without the dipstick in the oil fill tube, unless, of
course you like an oil geyser... <snipped>
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Eddie,
I replaced the hose using the same method you have. I just used a different type of hose. It has been working for several years.
Your fuel shut-off solenoid looks like it is plumbed to the output of the fuel pump. Both of my Onan's had it on the input side. (I have removed it from my 6k.) I am not sure of the effect of having it swapped.
Many will tell you that you do not need this solenoid and many Onans are out there working just fine without it. BUT when reading some older Onan documentation I found why it was installed. It was to keep any pressure build up in the gas tanks from overcoming the needle valve in the Onan carburetor... and causing a fuel leak in the generator compartment. (It would take a few circumstances to happen -- all at the same time, but it could happen.) The documentation I was reading made it sound like it was more of an emissions concern than a safety issue.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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