|
|
Posted by Dan [173.9.49.14] on Friday, June 22, 2012 at 10:10:03 :
In Reply to: OT need help with a Marvel Carb on an Oliver posted by Ron in Indiana [50.121.105.182] on Thursday, June 21, 2012 at 23:11:02 :
Make sure the fuel is consistently flowing from the supply line right at the connector for the carb. Don't let it just dribble for a while, but let it really flow for a while. I like to use a small clear soda bottle, so I can see it. Shut the tank off and remove the bowl completely and put a drip pan or pie plate under where the bowl mounts and turn the tank back on, it should run pretty smooth out of the tank too. Be careful with the fuel, as I know it can make a mess, but it will let you know what is going on. The new fuel today has a tendency to swell rubber tubing and rubber valve seats used in carbs.
If the fuel isn't flowing, its above the carb. My McCormick Deering gave me an education on fuel tank designs a few years ago. Seems the tanks of the old days had about 1/2 pipe soldered onto the input that the fuel bowl screws onto, just to keep the crap on the bottom of the tank from clogging the outlet on the tank. Mine had rusted of, resulting in working great then not working, then after tinkering with the carb, it would work, but only because I had moved the junk around allowing the fuel to flow.
Not familiar with Oliver carbs, but the sand wasps like to build nests in the atmospheric vent lines of all my older tractors, which screws up fuel flows, and creates flooding, and starving for fuel too after it gets running.