| Author | Message | ||
| christopher l cole sr. (Muziklvr)
Registered Member Username: Muziklvr Post Number: 97 Registered: 7-2006 Posted From: 69.171.167.18 Rating: N/A |
was wondering if anyone could tell me how to clean and drain the tank and replace the fuel line coming from it with out removing the tank. can this be done?i would look in the manuals, but they are packed in a storage unit in nashville tn( got packed by mistake, but that is a different story all together) and i am in eastern nc trying to get my 6.5 onan nh working and be able to use the old ac fuel tank instead of the small portable tank i have now. 28 gal vs. 6......... thanks in advance_muziklvr | ||
| Jim Wilke (Jim Bob) (Pd41044039)
Registered Member Username: Pd41044039 Post Number: 511 Registered: 2-2001 Posted From: 184.0.3.170 Rating: |
Christopher, Run the front wheels up on some blocks & block the body before you get under the bus. The tank has a nice pipe thread drain plug in the bottom. The fuel line runs into the old AC bay and you can connect your fuel line to that. (I mounted a furnace oil filter at the end of it.) BUT... GM made this a very safe installation. There is an electric fuel pupm and a vacuum breaker located behind a panel in the front left wheelwell. The system is designed so that when the engine stops, the fuel pump stops and the vacuum breaker allows the fuel to drop back into the tank so the carb doesn't flood and maybe cause a fire hazard. Since the pump was not functional I did away with all that and just made a little piece of tubing to replace the pump & plugged the small tube which goes to the top of the tank. (This could be the return line for a diesel genset) You could flush the fuel line back into the tank with some acetone, laquer thinner, etc before you drain whatever is in the tank. We have a 6.5 Onan NH installed and this tank gives us about 50 hours of run time. | ||
| Austin Scott Davis (Zimtok)
Registered Member Username: Zimtok Post Number: 424 Registered: 9-2006 Posted From: 209.156.24.114  Rating: N/A |
Jim, You get 50hrs of run time??? I have a 6.5 NH Onan generator and only get about 25-30hrs at best. with both air units running I get even less. I guess I need to do a tune-up on the generator.... . | ||
| Jack Fids (Jack_fids)
Registered Member Username: Jack_fids Post Number: 105 Registered: 1-2009 Posted From: 69.171.160.150  Rating: N/A |
2 questions came to mind: If that 28 gallon tank is between the front tires on an '04 then where is the spare tire located? OR How does an '06 make use of that space, does it extend into the "heater box" area? | ||
| Gus Causbie (Gusc)
Registered Member Username: Gusc Post Number: 1185 Registered: 11-2005 Posted From: 173.202.38.197  Rating: N/A |
I'm pretty sure the tank is just behind the front axle since the filler neck is behind the RF wheel. | ||
| john w. roan (Chessie4905)
Registered Member Username: Chessie4905 Post Number: 1919 Registered: 10-2003 Posted From: 71.58.71.157  Rating: N/A |
it tucks up behind front axle. We had a local fabrication shop make a replacement for our old one. Ends were made flush, gaining almost two extra gallons. It is a snug fit up in there BTW. The spare mounts behind front bumper, just like the other GMs. Don't know about the Scenic Cruisers. | ||
| Jim Wilke (Jim Bob) (Pd41044039)
Registered Member Username: Pd41044039 Post Number: 514 Registered: 2-2001 Posted From: 184.0.3.170 Rating: N/A |
The Scenicruiser front 1/3 is very close to an 04 so I would bet that the spare is behind the bumper too. If anyone out there has never seen their spare, I suggest that you dig it out when you are in the driveway. Mine was a 30 year old rag tire on a split rim. The bolts that hold the bumper up (closed) were frozen. I am REALLY glad I went after this before needing it on the side of the road. Don't think I would have gotten the bumper open without heat, big air & Blaster. | ||
| Jim Wilke (Jim Bob) (Pd41044039)
Registered Member Username: Pd41044039 Post Number: 515 Registered: 2-2001 Posted From: 184.0.3.170 Rating: N/A |
Hi Scott, Yes, We often get more than that. We figure the burn is about 1/2 gal per hour. You might check to see how much gas you take when you run out. Maybe there is something wrong with the pickup tube & you're only using about 1/2. Also, I would bet you will have trouble if you have not removed the original electric pump & replumbed. The original system is designed to break the vacuum when the AC engine shut down & let the gas run back into the tank. You would also be sucking gas through the original fuel pump. There should be an aluminum panel at the back of the left front wheel well. The old pump etc is behind it. Email me direct if you want. | ||
| Gus Causbie (Gusc)
Registered Member Username: Gusc Post Number: 1187 Registered: 11-2005 Posted From: 173.202.11.16 Rating: N/A |
I had problems with my old pump also and just removed it. The pump on the genset is plenty adequate. |
