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Joined: Jan 2020
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J
'Bolter
'Bolter
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This is probably a dumb question.

Question- I have a '66 C10 with a '74 I6 250. I'm in the middle of a rewire, using American Autowire #500560 Classic upgrade kit. I'm converting from my original dash cluster with idiot lights to an OEM cluster with gauges. My question is this, will I need to run an oil pressure line in order to get that gauge to work, or will it work electronically?


"The greatest use of life is to spend it on something that will outlast it" ~ William James

'25 Chevy Superior
'66 Chevy C10
'03 Chevy Silverado 1500 HD
Joined: Apr 2005
Posts: 7,441
Bolter
Bolter
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If you have an electric sending unit that is compatible with your electronic gauge it will work just fine.


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
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J
'Bolter
'Bolter
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OK, but I guess that's my question, is there some sort of electronic attachment I can place on my cluster? All I see for oil pressure is the mechanical line input.
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PXL_20210123_183845440.jpg (237.81 KB, 93 downloads)


"The greatest use of life is to spend it on something that will outlast it" ~ William James

'25 Chevy Superior
'66 Chevy C10
'03 Chevy Silverado 1500 HD
Joined: May 2005
Posts: 8,983
B
Sir Searchalot
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Does OEM mean you bought a donor gauge cluster from a 66 Chevy truck? I assume you do not know if your gauge is electrical (wire terminal on the back or mechanical (a tube attached in the back). What does OEM mean to you?

If you have a 66 cluster and a 74 motor, it may be hard to match an original electrical gauge to 74 sender. You would use a sender for the 66 gauge. A mechanical gauge does not care what motor it is in, so no problem there.

This situation (66/74 mismatch) can also occur with temperature gauge/sender.

I see you posted while I was typing. Looks like you have a donor cluster with a mechanical gauge. Just buy a tube kit and install. There is NO adapter to turn the mechanical gauge to an electric gauge.


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
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'Bolter
'Bolter
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Bartamos,
The cluster is a donor, it is original equipment. It only has the oil line input, see attached pic above.

That was my problem I guess, I was searching for a mechanical sending unit for a '74 motor and not finding anything. So I should have no problem plugging in a '66 mechanical sending unit into my block? That's what I guess I need to know.

Thanks


"The greatest use of life is to spend it on something that will outlast it" ~ William James

'25 Chevy Superior
'66 Chevy C10
'03 Chevy Silverado 1500 HD
Joined: May 2005
Posts: 8,983
B
Sir Searchalot
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Correct. See my added coments above.


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
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'Bolter
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Is there some sort of mechanical sending unit I have to purchase? or does the line just screw into where the electrical sending unit is now?


"The greatest use of life is to spend it on something that will outlast it" ~ William James

'25 Chevy Superior
'66 Chevy C10
'03 Chevy Silverado 1500 HD
Joined: May 2005
Posts: 8,983
B
Sir Searchalot
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Just screws in where electrical was. No sender, just plumbing fittings. Kit comes with everything you need. Assortment of fittings for both ends.


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
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'Bolter
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Thanks Bartamos, you've came through again.


"The greatest use of life is to spend it on something that will outlast it" ~ William James

'25 Chevy Superior
'66 Chevy C10
'03 Chevy Silverado 1500 HD
Joined: May 2005
Posts: 8,983
B
Sir Searchalot
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You are welcome. Just happened to be one of the one's answering.


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
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6
'Bolter
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Did the same thing on my '62. I was using a 1967 250 at the time. hen I changed to the 1967 327, same set up worked. Same thing when I went to the 1963 327.
Just ran the plumbing from the block to the gauge.

You'll be happier with gauges instead of idiot lights. I know I am.

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'Bolter
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Originally Posted by bartamos
I see you posted while I was typing. Looks like you have a donor cluster with a mechanical gauge. Just buy a tube kit and install. There is NO adapter to turn the mechanical gauge to an electric gauge.

Unfortunately just buying a tube kit didn't get the job done. Looks like I'm going to have to buy an adapter to add to this to get it to work. The kit came with a male fitting that will fit into the female fitting on the cluster, but then it doesn't have any fitting that will fit into that. bummer
Attachments
PXL_20210128_012717976.jpg (98.03 KB, 26 downloads)
PXL_20210128_012636396.jpg (57.79 KB, 26 downloads)


"The greatest use of life is to spend it on something that will outlast it" ~ William James

'25 Chevy Superior
'66 Chevy C10
'03 Chevy Silverado 1500 HD

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