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harborman's Avatar
 
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Fuel pressure gauge

Is it worth installing the perminent fuel gauge on the front fuel rail? I'm trying to resolve hard starting when hot. I replaced check valve, no smell of gas at dampers, regulator, temp sensor ok.
Old 12-28-2010, 06:49 AM
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I'm thinking you need to put your year of 928 in your signature somewhere. My first thought is accumulator, but not sure if your car has one or not.

As far as a permanent gauge, many will oppose it since it's just something that could fail and leak. In my opinion, I would put one. I likey gauges that give me instant information on the goings on in my mechanics.
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Old 12-28-2010, 06:55 AM
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Sorry, I have the 86 with 32 valve.
Quote:
I'm thinking you need to put your year of 928 in your signature somewhere. My first thought is accumulator, but not sure if your car has one or not.



As far as a permanent gauge, many will oppose it since it's just something that could fail and leak. In my opinion, I would put one. I likey gauges that give me instant information on the goings on in my mechanics.
Old 12-28-2010, 11:59 AM
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I purchased one from Roger at 928s Rus for $52 (including shipping). Easy installation and a good way to eliminate one source of a problem in a no-start situation.
Mike
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Old 12-28-2010, 12:58 PM
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Old 12-28-2010, 01:19 PM
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Thanks for the document. I saved and printed it.
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Old 01-02-2011, 06:24 AM
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well i agree with mpdano..i like guages and intend on installing 2 fuel pressure guages(on in the car and one in the engine bay on my aftermarket regulator. i am also installing a oil temp guage, vacuum/boost guage, air-fuel ratio guage, hopefully a trans temp guage(still need to buy that one0 and a total of 5 temp guages..three pyrometers for the exhaust gas temp and two more for the indivdual cylinder head temps.... and maybe some brake bias guages too!!!
Old 01-03-2011, 05:03 PM
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oops i misspelled gauges multiple times?!what the crap?
Old 01-03-2011, 05:20 PM
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Any gauge is an added failure point, I would never permanently install one on anything critical without a REAL good reason.

One on the fuel rail "maybe". Its fairly frequent that I would like to quickly rule out fuel pressure issues, messy to open, and fuel gauges from Roger at least seem at this point reliable.
Old 01-04-2011, 01:58 AM
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Well I agree, more to go wrong. I am trying to figure out why it was hard starting when hot. I have not started the car now for a month as I was doing some other work on it. Replaced the heater valve, put a new hose clamp on the power steering reservoir. Considering replacing fuel hoses now. The car has 45K original miles on it and most of the hoses look still pretty good. But they are 25 years old! I am also cleaning ground points.

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Originally Posted by Danglerb View Post
Any gauge is an added failure point, I would never permanently install one on anything critical without a REAL good reason.

One on the fuel rail "maybe". Its fairly frequent that I would like to quickly rule out fuel pressure issues, messy to open, and fuel gauges from Roger at least seem at this point reliable.
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Old 01-04-2011, 05:11 AM
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generally speaking a gauge failure will not put your car on the side of the road, i have worked on cars for years and feel like the added protection of knowing what is going on with your car is more important. The fuel pressure gauge underhood is on a aeroquip dry break quick disconnect..so no gauge is there under noral conditions..just when i am underhood and wanting to adjust fuel pressure for some reason. In any event you never see race cars breaking because they had too many gauges(?) maybe not enough and the driver was ignorant of the car's condition...honestly think about the fact that you guys feel a gauge is a failure point, really?
Old 01-14-2011, 10:34 PM
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Not worried about the gauge, worried about modification to the fuel rail and leaks in the connections, and not just leaks at install time, but leaks that maybe happen after 5 years of this new "knob" getting bumped during normal PM.
Old 01-15-2011, 12:31 AM
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rail gauge

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Originally Posted by Danglerb View Post
Not worried about the gauge, worried about modification to the fuel rail and leaks in the connections, and not just leaks at install time, but leaks that maybe happen after 5 years of this new "knob" getting bumped during normal PM.
oh. my gauge is not in my rail, it's on my aftermarket regulator.You just have to make sure you inspect for leaks at each oil change I guess.
Old 01-15-2011, 08:10 AM
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Old 01-15-2011, 08:10 AM
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