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| sbwhart:
I've probably missed this but why do you need a pump :scratch:. Anyway as Ralph suggested a little osilator would do the job as per my lubricator for my loco her http://madmodder.net/index.php?topic=547.255 there used a lot for this type of application if you strip a fish tank pump down thats what you'll probably find. Hope this helps Stew |
| djh82uk:
The pump is to prime the fuel lines to start the engine, traditionally you would use exhaust pressure by putting you finger over the end of the exhaust, but then it is not able to start itself. I guess I could look into other types of pump, or try to make one Thanks DJH |
| bogstandard:
Fish tank pumps usually use a diaphragm of some sort, or rubber type flap valves. These bits are liable to be attacked by the fuel itself and rendered useless. You would either have to source a pump that uses valves that can resist this type of attack, or go with an all metal pump as Ralph suggests. The easiest way would be to inject directly with say a small syringe directly into the fuel line just before the carb. Bogs |
| djh82uk:
Hmm, I could feed it from the exhaust again, and use a 12v solenoid I have lying around to block the exhaust while it primes. |
| Bearcar1:
You might think about utilizing one of those primer bulbs that are used for that very purpose on lawn mowers and leaf blowers. They are only a couple of bucks, very simple to install as well as maintain. BC1 Jim |
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