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Old 03-09-2012, 05:22 PM   #1
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Auto meter gauges

K so Im hoping someone knows what's all needed. I have two gauges fuel and water temp both electric. Does anyone know what other part I may need other than what came with the parts. T fittings adapters. I know I don't need braided line with the electrical ones. Also with the water temp one what gauge wire should I use for the connection to the sending unit and the gauge
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Old 03-10-2012, 01:42 AM   #2
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Re: Auto meter gauges

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K so Im hoping someone knows what's all needed. I have two gauges fuel and water temp both electric. Does anyone know what other part I may need other than what came with the parts. T fittings adapters. I know I don't need braided line with the electrical ones. Also with the water temp one what gauge wire should I use for the connection to the sending unit and the gauge
Post up the part numbers of your gauges so I can be sure you get the correct answers please.
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Old 03-10-2012, 01:47 AM   #3
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Quote:
Originally Posted by Trojan Horse

Post up the part numbers of your gauges so I can be sure you get the correct answers please.
Water temperature gauge autometer 5737 and fuel pressure 5761
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Old 03-10-2012, 02:21 AM   #4
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Re: Auto meter gauges

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Originally Posted by 351mustang View Post
K so Im hoping someone knows what's all needed. I have two gauges fuel and water temp both electric. Does anyone know what other part I may need other than what came with the parts. T fittings adapters. I know I don't need braided line with the electrical ones. Also with the water temp one what gauge wire should I use for the connection to the sending unit and the gauge
Quote:
Originally Posted by 351mustang View Post
Water temperature gauge autometer 5737 and fuel pressure 5761
Ok, the 5737 Water temp gauge should come with: 1/8'' NPT electric sender and 3/8'' and 1/2'' NPT fittings. The electrical current used in these is very small so a 18 gauge wire is sufficient to connect the gauge to the sending unit.
5737 Instructions


The 5761 Fuel pressure gauge should come with: 1/8'' NPT sender and 8' wiring harness.
5761 Instructions


The fittings included should be sufficient to connect your gauges.
However, every application is different and it is possible that different bushings, reducers or adapters may be needed. Usually your local auto parts or hardware store can supply any additional fittings you may need.
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Old 03-10-2012, 06:06 PM   #5
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Quote:
Originally Posted by Trojan Horse

Ok, the 5737 Water temp gauge should come with: 1/8'' NPT electric sender and 3/8'' and 1/2'' NPT fittings. The electrical current used in these is very small so a 18 gauge wire is sufficient to connect the gauge to the sending unit.
5737 Instructions

The 5761 Fuel pressure gauge should come with: 1/8'' NPT sender and 8' wiring harness.
5761 Instructions

The fittings included should be sufficient to connect your gauges.
However, every application is different and it is possible that different bushings, reducers or adapters may be needed. Usually your local auto parts or hardware store can supply any additional fittings you may need.
Thanks for the info
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Old 03-12-2012, 04:38 PM   #6
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What type of connection should I use to tap into the fuel line or should I do it from the regulator or closer to the carb ?
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Old 03-12-2012, 06:09 PM   #7
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Re: Auto meter gauges

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What type of connection should I use to tap into the fuel line or should I do it from the regulator or closer to the carb ?
Most use a gauge connection at the carb feed lines.
Depends on what you have, but close to the carb is more ideal.
Post a pic of your fuel lines on the carb and we'll see what we can come up with for you.
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Old 03-13-2012, 05:10 PM   #8
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Quote:
Originally Posted by Trojan Horse

Most use a gauge connection at the carb feed lines.
Depends on what you have, but close to the carb is more ideal.
Post a pic of your fuel lines on the carb and we'll see what we can come up with for you.
Does this photo work?
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Old 03-13-2012, 05:11 PM   #9
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Here is another. When I get to the car I'll take another but looking at the connector I think I know what I need
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Old 03-13-2012, 05:42 PM   #10
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Re: Auto meter gauges

Can you work another Tee into the line at the Tee for the dual feed?
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Old 03-13-2012, 06:13 PM   #11
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Quote:
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Can you work another Tee into the line at the Tee for the dual feed?
The one gauge is no longer there so, I think that's what I will do
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Old 03-13-2012, 07:44 PM   #12
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Do you know anything about Holley regulator 34r 6668. Does it have to outlets I'm considering just tapping it from there. It notes in the instructions that you may want to mount it to the firewall or fender for high vibration applications
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Old 03-13-2012, 07:58 PM   #13
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Quote:
Originally Posted by 351mustang
Do you know anything about Holley regulator 34r 6668. Does it have to outlets I'm considering just tapping it from there. It notes in the instructions that you may want to mount it to the firewall or fender for high vibration applications
is your gauge have fluid in it.if so the vibration souldnt affect it.as for the regulator im not sure which part number i have but if it has 2 out ports i would think it would be ok to hook the gauge to one if u want.as for the reglator i mounted mine down on the frame.

now the regulator i originally hooked up one out port to the carb with a tee fuel gauge setup.the other out port went to return line line.because of the return line i wasnt getting any pressure on my gauge.when i blocked the return i pressure would go up to normal(6 psi).so i am in the process of reconfiguring mine as we speek.i just wanted you to keep that in mind how you configure you gauge and regulator so you dont have the same issue.
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Old 03-13-2012, 08:01 PM   #14
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Quote:
Originally Posted by dreamstang

is your gauge have fluid in it.if so the vibration souldnt affect it.as for the regulator im not sure which part number i have but if it has 2 out ports i would think it would be ok to hook the gauge to one if u want.as for the reglator i mounted mine down on the frame.

now the regulator i originally hooked up one out port to the carb with a tee fuel gauge setup.the other out port went to return line line.because of the return line i wasnt getting any pressure on my gauge.when i blocked the return i pressure would go up to normal(6 psi).so i am in the process of reconfiguring mine as we speek.i just wanted you to keep that in mind how you configure you gauge and regulator so you dont have the same issue.
So your saying when you used both outlets your got false readings? Hmm didn't think about that.
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Old 03-13-2012, 08:07 PM   #15
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what im say when one outlet ran to the return the other one wouldnt pressurize.im not sure if yours is the same but both outlets are feeds,so they share the same pressure.it basically allows the return to freeflow.but if you hook a gauge to second port you shouldnt have this problem cause it wont be free flowing back to the tank.only if you use one port for return and it not designed or marked return.
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Old 03-13-2012, 08:19 PM   #16
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Quote:
Originally Posted by dreamstang
what im say when one outlet ran to the return the other one wouldnt pressurize.im not sure if yours is the same but both outlets are feeds,so they share the same pressure.it basically allows the return to freeflow.but if you hook a gauge to second port you shouldnt have this problem cause it wont be free flowing back to the tank.only if you use one port for return and it not designed or marked return.
Ok I got ya

---------- Post added at 08:19 PM ---------- Previous post was at 08:16 PM ----------

By the way it's an autometer electric fuel pressure gauge. The vibration question was more for the sending unit part
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Old 03-13-2012, 08:21 PM   #17
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Quote:
Originally Posted by 351mustang

Ok I got ya

---------- Post added at 08:19 PM ---------- Previous post was at 08:16 PM ----------

By the way it's an autometer electric fuel pressure gauge. The vibration question was more for the sending unit part
Oh sorry.lol
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Old 03-13-2012, 09:54 PM   #18
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Re: Auto meter gauges

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Do you know anything about Holley regulator 34r 6668. Does it have to outlets I'm considering just tapping it from there. It notes in the instructions that you may want to mount it to the firewall or fender for high vibration applications
I can't find a Holley Regulator with that number.
Check this page and see if one of them is what you have.
Holley Carbureted Regulators
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Old 03-13-2012, 11:14 PM   #19
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Quote:
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I can't find a Holley Regulator with that number.
Check this page and see if one of them is what you have.
Holley Carbureted Regulators
It's the very last one on the page, I guess it's a casting number. The last one has the same numbers on it.
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Old 03-14-2012, 12:34 AM   #20
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Re: Auto meter gauges

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Do you know anything about Holley regulator 34r 6668. Does it have to outlets I'm considering just tapping it from there. It notes in the instructions that you may want to mount it to the firewall or fender for high vibration applications
Ok, If you are using as shown in yellow without a return line then yes you should be able to tap into the other side outlet.


Or, If you are using as shown in blue with a return line, then yes you should be able to tap into the other side outlet.
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Old 03-14-2012, 06:34 AM   #21
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The closer to the carb the better but I myself have my gauge hooked to regulator mounted on firewall. And works just fine but if you look they make a duel feed line for holly with a gauge built right into it. So even with how I have mine set up. I'd still say closer to carb the better
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Old 03-14-2012, 07:38 AM   #22
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Quote:
Originally Posted by captain78
The closer to the carb the better but I myself have my gauge hooked to regulator mounted on firewall. And works just fine but if you look they make a duel feed line for holly with a gauge built right into it. So even with how I have mine set up. I'd still say closer to carb the better
It's for an inside mount gauge
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Old 03-14-2012, 06:48 PM   #23
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How do I depressurize the fuel system?
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Old 03-14-2012, 08:06 PM   #24
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Re: Auto meter gauges

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How do I depressurize the fuel system?
Just loosen a connection, wrap a rag around it and let it bleed off slowly.
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Old 03-14-2012, 09:24 PM   #25
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Quote:
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Just loosen a connection, wrap a rag around it and let it bleed off slowly.
Doh! Thanks
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Old 03-14-2012, 11:16 PM   #26
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Also the instructions say to use compound instead of tape. Is that just pipe compound, the instruction call it out as Teflon compound, went to my local auto parts store and he was clueless
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Old 03-14-2012, 11:44 PM   #27
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Re: Auto meter gauges

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Also the instructions say to use compound instead of tape. Is that just pipe compound, the instruction call it out as Teflon compound, went to my local auto parts store and he was clueless
People have a tendency to use Teflon tape improperly and bits of it end up in the fuel supply is why they say that.
Just tell the wingnut behind the counter that you need some Teflon pipe dope.
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