Here's an update. Thanks for the tips Emory, Richard, Zak and others.
>There should be a high flow (original was plastic) filter between the
fuel tanks and the pump and a high pressure (metal) filter between the
pump and ...
First thing was to remove the input side filter.
>Might be clogged fuel socks (inside tanks). Hope not for your sake.
It's a nasty job checking them out.
Yea, this was not a pleasant thought. Checked with previous owner and
he had completly refurbished both tanks.
>We often ran our tanks low with our old Pro-Jection and never had any
problems related to low tanks...
Good to know. It is currently dry at the pump and will not draw gas.
>1. Run the output of the pump directly into a gas can and bypass all
fuel filters.
This was interesting. With a clear 3/8 vinyl tube directly on the pump
inlet, it only pulled about 3 inches of gas up the tube out of a can.
Did not try with the pump outlet to engine disconnected but probably
should.
Next step is to also get a T and attach vacuum guage across at the
input while drawing from can or tank.
I checked the changeover valve by removing connections, blowing air
into the outlet and checking where it came out. Checked OK. Could
also hear gurgle in tank when the inlets were connected. That was
worth doing just to see if the switch was correct.
This is getting to be a challenge now. It should draw 6 inches of gas
vertical from the tank with just a few inches vacuum.
Thanks for the help,
Bill
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>There should be a high flow (original was plastic) filter between the
fuel tanks and the pump and a high pressure (metal) filter between the
pump and ...
First thing was to remove the input side filter.
>Might be clogged fuel socks (inside tanks). Hope not for your sake.
It's a nasty job checking them out.
Yea, this was not a pleasant thought. Checked with previous owner and
he had completly refurbished both tanks.
>We often ran our tanks low with our old Pro-Jection and never had any
problems related to low tanks...
Good to know. It is currently dry at the pump and will not draw gas.
>1. Run the output of the pump directly into a gas can and bypass all
fuel filters.
This was interesting. With a clear 3/8 vinyl tube directly on the pump
inlet, it only pulled about 3 inches of gas up the tube out of a can.
Did not try with the pump outlet to engine disconnected but probably
should.
Next step is to also get a T and attach vacuum guage across at the
input while drawing from can or tank.
I checked the changeover valve by removing connections, blowing air
into the outlet and checking where it came out. Checked OK. Could
also hear gurgle in tank when the inlets were connected. That was
worth doing just to see if the switch was correct.
This is getting to be a challenge now. It should draw 6 inches of gas
vertical from the tank with just a few inches vacuum.
Thanks for the help,
Bill
_________________________________________________________
Do You Yahoo!?
Get your free @yahoo.com address at http://mail.yahoo.com
