TEMP Gauge Location? And HOW about VOLT?


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By Apache - 16 Years Ago
I just went and bought some new gauges bc all I have is the tach, oil, and AMP. I went and got a Temp, Oil, and VOLT gauge set-up.

-I know where to put the oil

-I assume I should just run the VOLT off the alt?

-I've found two places where i'd guess the TEMP would go but i'm not sure where?



2 locations = Top of head (Driver's side, pass. side appears to be a freeze plug of some sort)

Side of water pump (top driver side of water pump)



I'll try to get pics ASAP



Thanks guys
By Apache - 16 Years Ago




http://i521.photobucket.com/albums/w337/Apache3359/Painting%20292%20Parts/finite.jpg

http://i521.photobucket.com/albums/w337/Apache3359/Painting%20292%20Parts/finite2.jpg



Also curious, in the upper left hand corner of the shot of teh intake manifold/head, on either side of the front of the intake manifold, there are holes, what are they for?
By charliemccraney - 16 Years Ago
Run the volt meter from a key hot source. Try to avoid splicing into the circuit of another device.



The stock temp sensor goes at the back of the driver side head. Don't use the water pump. The location you describe is where the cool coolant enters the engine. The best place to put it is just before the thermostat, in the intake but this will likely require that you drill and tap the manifold.



The holes in the manifold are for bolts. You're missing 2 bolts.
By Apache - 16 Years Ago
Okay so



a.) I "SHOULD" just run the VOLT off the Alt?

b.) I "CAN" Remove the stock temp sensor from the back of the head and use the aftermarket one there?

c.) It's "MANDATORY" that I get bolts for those holes?
By charliemccraney - 16 Years Ago
I guess you might be able to run it to the alternator if it's externally regulated. Just ensure that it does not draw a current with the key off. I'm running a 1 wire alternator so it is not an option for me.



The aftermarket sensor should work fine in the stock location.



You will need the bolts for the manifold.
By Apache - 16 Years Ago
It's an internally regulated GM 3-wire.

Do you think hooking it up to somewhere like the positive side of the coil would be better? Or maybe on the starter side of the starter solenoid?

I have to find what size bolts i need now, bc the person who rebuilt the motor must not have put'm back on.



Thanks again, you're always there for me :-D
By charliemccraney - 16 Years Ago
It may work with your three wire alternator. I don't know enough about them.

I'd put it on the accessory post on the ignition switch, or a place on the fuse block, if a '57 even has one, that is hot only while the key is in the run position. The starter solenoid is not a good place. On one side it will always draw a current. On the other it will only draw when the starter is engaged.

I don't have the bolt dimensions handy. I'm sure someone does.
By PWH42 - 16 Years Ago
Regarding the two holes in the water pump,one of them ( the right one after it's installed on the engine) is the connection for a heater hose.Plug the other one.The two bolt holes are for the throttle linkage in some applications.If they aren't needed on your car simply leave them empty or if you want to put something in them for looks,they are 5/16 coarse thread.
By rgrove - 16 Years Ago
PWH42 (12/18/2009)
The two bolt holes are for the throttle linkage in some applications.If they aren't needed on your car simply leave them empty or if you want to put something in them for looks,they are 5/16 coarse thread.

Those arent the bolt holes he is asking about.  Look at the upper left of the picture.  He is asking about the two front intake manifold mounting bolts, which are certainly needed.

Just hook the volt meter up to the acc. post on the ignition switch.  Its easy & accurate.

And yes, you can just pull the old temp sender out and install the new one that came with your kit. You will probably need an adapter, but it should have been included.  Also, I would try not to damage the OE sender, as they are getting spendy, and you may want to use the factory guage someday (assuming the sender still works)

Good luck!

By PWH42 - 16 Years Ago
OOPS!I reread the post and looked again at the picture and see that I didn't pay close enough attention to the question.
By Apache - 16 Years Ago
There was NO wiring to that sender. How should I go about obtaining what I need to hook it up to the gauge? :-D.

Stupid question, I know
By rgrove - 16 Years Ago
Apache (12/19/2009)
There was NO wiring to that sender. How should I go about obtaining what I need to hook it up to the gauge? :-D.
Stupid question, I know

Not sure i understand the question?  Do you mean an OEM type wire?  If so, then any repro parts place should be able to get you one.

If you arent concerned about OE look, its just a single stranded wire from the take-off on the center of the sender (usually) to the sender ("S") terminal on the back of the guage.  The sender measures/changes resistance to ground as temp changes, so there is only 1 wire off the top of the sender.  I believe that the guage should also have a hot & ground on the back as well that have to be connected?  Does that help?

By Apache - 16 Years Ago
yeah, it's all good. Appreciate the help again.