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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › OS 91 SZ Pump removal
03-14-2010 08:16 PM  8 years agoPost 1
pcollins

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UK

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Can anybody tell me how successful they have been with removing the pump on a 91 sz please. I have heard that you can just remove the pump and connect straight onto the regulator.

Any help and comments on this would be a great help.

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03-14-2010 08:31 PM  8 years agoPost 2
rstacy

rrElite Veteran

Rochester, NY

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Thats exactly what we did.
The pump went out at a fun fly.
I connected a short piece of fuel tubing to the inlet and outlet of the pump.
Ran the fuel line directly to the carb. It ran so well that we left it that way.

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03-14-2010 08:33 PM  8 years agoPost 3
pcollins

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UK

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Thanks for the reply did you leave the reg in place.

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03-15-2010 01:15 AM  8 years agoPost 4
rstacy

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Rochester, NY

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yes

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03-15-2010 01:49 AM  8 years agoPost 5
brcg123

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Wagoner OK USA

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Thats exactly what we did.
The pump went out at a fun fly.
I connected a short piece of fuel tubing to the inlet and outlet of the pump.
Ran the fuel line directly to the carb. It ran so well that we left it that way.
Dude, did you realize what you said?? you said the pump went out at the ff, so you hooked lines to the in and out of the pump, your talking about your regulator going out. he is asking about the pump...








Trex700N, Trex600N, Raptor70, RaptorTitan, GMPCrickett, Visa

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03-15-2010 02:09 AM  8 years agoPost 6
rstacy

rrElite Veteran

Rochester, NY

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Dude, did you realize what you said?? you said the pump went out at the ff, so you hooked lines to the in and out of the pump, your talking about your regulator going out. he is asking about the pump...
Dude,
Yes I realize what I said. Let me even say it again.
Our pump went out at a FF. The engine started going lean.
I bypassed the pump by connecting the inlet and outlet tubes on the pump with a piece of fuel tubing.
I ran the line from the fuel tank directly to the regulator on the carburetor. It ran so well that we left it that way.

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03-15-2010 02:17 AM  8 years agoPost 7
brcg123

rrKey Veteran

Wagoner OK USA

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Oh I get it, your saying you ran a piece of tubing from the inlet to the outlet of the pump, therby blocking it off. what did you use for pressure?








Trex700N, Trex600N, Raptor70, RaptorTitan, GMPCrickett, Visa

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03-15-2010 02:18 AM  8 years agoPost 8
rstacy

rrElite Veteran

Rochester, NY

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Oh I get it, your saying you ran a piece of tubing from the inlet to the outlet of the pump, therby blocking it off. what did you use for pressure?
Muffler pressure

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