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1

General Buick Tech / Fuel tank and pump, electrolysis on tank? New pump?

« on: April 17 2024, 09:56:23 PM »

Haven't started the gn in too long.  I tried this week, but I didn't get any fuel.  My tank has a little rust inside, not too bad.  It's the original tank with the plastic baffle.  I'm thinking of trying electrolysis inside the tank while I have it out.  Anybody ever try that?
I need a new fuel pump.  The old one was a walbro gss242, 190lph.  They seem to be obsolete, I can upsize to a gss340gen3 or a racetronix 255lph.  I have an fpr and a hot wire kit long installed. I've never touched the return line and I didn't think the 255lph size needs that.  The sender is ok and I don't plan to replace anything extra until I know the car starts.  Am I missing anything?

2

General Buick Tech / another powermaster post

« on: May 19 2012, 07:11:55 PM »

GN's been sitting for 4 years since I  moved to Indiana, and now I'm moving to Houston.  (I just realized I'm 10 minutes from PTE, oh well).  It started up fine and seems to run ok, but the powermaster won't shut off unless I unplug the motor, or unplug the grey brake switch.  Both shut the motor down.  The troubleshootin g guides I could find reference special GM tools.  My brake light is not on.  The pump pumps fluid out of the reservoir, and the levels seem to hold (or at least change slowly) when off.  The switch seems to always read ~2.4ohms across all 3 pins, any combination.  I would think if it were the switch, I'd get a brake light, so maybe its the motor.  Before I do that, the fluid looks like crap, so I will flush it out.  Any input?  I need the brakes to work well enough to stop the car when I load it on the truck.
On second thought, I'm going to check the brake light also.  That might explain why I don't line up with the troubleshootin g guides.