| Carb fuel connection [message #327123] |
Thu, 14 December 2017 23:45  |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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I do NOT need this now but it drove me nuts for a day trying to put something together.
I wanted to use a 1 gallon gas tank and gravity feed the carb from it. I am restarting an engine that has not run in 19 years. I have not drained and clean the tanks so just to get this running I need to attach the tank direct to the carb and gravity feed it. The problem I have is I was not able to come up with the appropriate 3/8" reverse flare fitting and adapters or elbow that would clear the thermostat housing to connect the tank hose to.
What have other people been using?
Today, I stopped by the local auto parts store for ideas. The guy that makes hydraulic hoses made me up what I needed out of 3/8" tube and bent me a close bend on a machine that they have there. I could not do that bend with my hand bender. Total cost was $0.00.
Yes, I know I could have used a hose and input to the mechanical fuel fuel pump but this coach does not have an operational one and the steel line back towards the tanks is damaged.
Yes, I also know about the possibility of fire so I have 3 fire extinguishers (2 AR-AFFF and 1 CO2) within 2 feet of the open hatch plus 2 more outside with the fender liners removed.
I just want to know what other people have done.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: Carb fuel connection [message #327128 is a reply to message #327123] |
Fri, 15 December 2017 08:05  |
Bullitthead
Messages: 1411
Registered: November 2013
Karma: 5
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Well, unless the carb started off DRY 19 years ago, it probably is going to spew fuel and not mix it well if at all if it doesn't spew from a stuck float. I would grab a functioning carb off the shelf or K-ball one from a working machine and use that to move the coach because it's likely you will have to take the existing one off or apart anyway. Such a simple swap probably takes less time than the fuel hookup and opens up the possibility of using a carb with a different fuel connection (like a Chevy quad). It's all temporary anyway, and would be a lot safer with a carb you know works.
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
[Updated on: Fri, 15 December 2017 08:08] Report message to a moderator |
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| Re: Carb fuel connection [message #327146 is a reply to message #327128] |
Fri, 15 December 2017 14:46 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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That does not solve my problem. The fuel tanks and lines have not been cleaned yet so a temporary source of fuel is still necessary for what ever carb I use. I have already removed and inspected the carb for deposits and etc. So I will be reusing it until I determine if a more extensive rebuild is necessary.
All I was asking about is what fitting on the front of the carb are people using to clear the thermostat housing and possibly where do they get it.
I have not tried the one I had made yet as I still have several vacuum hoses to replace and have to reinstall the plugs.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Carb fuel connection [message #327150 is a reply to message #327149] |
Fri, 15 December 2017 17:04 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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Kosier wrote on Fri, 15 December 2017 16:43Ken,
15 or 20 years ago I was visiting a friend who ran a marina. He had a stack
of boat gas tanks that were replaced on a recall. He said there
was nothing wrong with them, so I mooched one. Holds over six gallons. Has
a quick coupler, so I attached a filter and a low pressure
fuel pump and a length of hose. I used a fairly long cord for power with
alligator clips to connect to the battery or whatever. I also have
a short piece of 3/8" tube from the junkyard for the carb if needed. I have
gotten a lot of use in many applications.
Gary Kosier
77PB w/500Cad
Newark, Ohio
Thanks Gary. That is what I was looking for. What people have done. I have access to a boat tank but the one I'm using is only 1 gallon probably off of a lawn mower or snow blower, and much easier to work with. I like the shut off valve on the bottom of it too.
If I get it to the point of driving it any distance off of the airport then I'll get the mechanical pump going and put a 5 gallon tank on the front bumper. Cleaning the main tanks is a spring project. Too cold now to be laying on the ground and doing that stuff.
Thanks again
Ken
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Carb fuel connection [message #327197 is a reply to message #327169] |
Sun, 17 December 2017 02:14 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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Thank you Rick
Ken B.
Richard Denney wrote on Sat, 16 December 2017 09:06Ken, I did not reinstall the filter can, but instead used an adapter from
the large filter-can threads to an AN-6 flare. Then, I used a hose with a
right-angle AN-6 flare fitting. I have an inline filter in an AN-6 metal
body in the aircraft hose just upstream from that point. The hoses are
rated at high enough temperature for that application.
Rick "or you could buy a metal line for a mechanical fuel pump from JimK
and cut off the flare and bend at the carb end, etc." Denney
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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