Fuel Pump Tester Gauge
#1
Fuel Pump Tester Gauge
I am looking for a reasonably priced fuel pump pressure gauge that doesn't require teflon tape on the threads like the one at harbor freight.Just for occasional use.Any ideas.Thanks in advance.
#2
Re: Fuel Pump Tester Gauge
I've had this one for 20 years, works/seals great with no tape. Unfortunately, there's not even a brand name on it. Was probably about $25. The seal is made by the rubber ring around the pin that depresses the valve core.
#3
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Join Date: Jul 2010
Location: Born on the Florida West Coast, now where can I retire?
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Re: Fuel Pump Tester Gauge
You are aware that the Teflon tape is only used at the fittings of the various supplied hoses to the Harbor Freight gauge head, correct? If you only use it for your car, that would only be done once and the hose could be left attached to the gauge all the time. The fitting of the hose to the GM engine not only requires no tape, but none should be used. It seals by a rubber ring inside the fitting, like all other brands.
#5
Re: Fuel Pump Tester Gauge
Well I got the fuel pressure gauge from Harbor Fright and I followed all the instructions from here and utube and I gotta tell ya it is a piece of doggy do do.After I released the pressure on the schrader valve,I was careful to hand screw on the fitting tight.Turned on the ignition but didn't start the car and got a reading of 6 lbs.So I turned off the ignition and unscrewed the connection to the schrader and looked inside the hose connection and saw the black rubber thing all twisted around and a piece of it flaking off so I pulled the small piece off and re tested it again and got no reading after several attempts.Oh,And at the first test I could here air escaping in the tester unit itself and not from the connection which I teflon taped.Is that black gasket thing inside suppose to move all over the place?Up and down and all around?Sorry for the long post but dang.This week I'm gonna drop $50.00 for a better one.Myo2.
#6
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Join Date: Jul 2010
Location: Born on the Florida West Coast, now where can I retire?
Posts: 1,505
Re: Fuel Pump Tester Gauge
The instructions are minimal and generic because there are several fittings that can be used on several brands of cars, and the Chinese can't write much good English anyway ;-) Did you use tools only to attach the hose extension to the gauge head? If yours has a rubber cushion around the head, it can hide the wrench fitting on the head. Too much twisting force on the head body can break the internal connection.
As for the small rubber ring, you may have tightened it too much. It is not supposed to move around at all.
Take it back and swap it with another one. Remove the rubber cushion from the head to better access the square wrench fitting on the head next time.
As for the small rubber ring, you may have tightened it too much. It is not supposed to move around at all.
Take it back and swap it with another one. Remove the rubber cushion from the head to better access the square wrench fitting on the head next time.
#7
Re: Fuel Pump Tester Gauge
The instructions are minimal and generic because there are several fittings that can be used on several brands of cars, and the Chinese can't write much good English anyway ;-) Did you use tools only to attach the hose extension to the gauge head? If yours has a rubber cushion around the head, it can hide the wrench fitting on the head. Too much twisting force on the head body can break the internal connection.
As for the small rubber ring, you may have tightened it too much. It is not supposed to move around at all.
Take it back and swap it with another one. Remove the rubber cushion from the head to better access the square wrench fitting on the head next time.
As for the small rubber ring, you may have tightened it too much. It is not supposed to move around at all.
Take it back and swap it with another one. Remove the rubber cushion from the head to better access the square wrench fitting on the head next time.
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