Gauges - Electrical senders vs Mechanical

Derek Townie

I have installed a 1974 slant six from a Duster in to my 1962 Town Wagon which runs great but I now have a mis-match between my old Stewart Warner mechancial Oil and Water temp gauges and the electical senders.

I have been looking at my options. As much as I like my current mechanical guages I dont think there is any way to make them work with the later engine.

Any ideas?

Thanks

Derek

SlantSixDan

Don't see why you couldn't make them work with the newer engine. What's preventing you installing the senders in the new engine where they were in the old engine?

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Derek Townie · Post subject: (Mon Apr 09, 2012 1:58 pm)

I haven't looked at it for a while but I'm fairly sure the old mechancial sender units from the 62 has a larger thread than the ones in the 74 engine.

Am I mistaken?

Thanks for your help

Mroldfart2u · Post subject: (Mon Apr 09, 2012 2:19 pm)

Doc · Post subject: (Mon Apr 09, 2012 2:32 pm)

Time to get out the drill and tap...
DD

Derek Townie · Post subject: (Mon Apr 09, 2012 5:38 pm)

I've just taken a closer look at the oil pressure sender and my mechanical fitting. Here are some pics:

Will this:

<a href="http://www.flickr.com/photos/35716845@N00/7062699891/" title="Mechanical connection from 62 Town Wagon by derek at, on Flickr">

Mechanical connection from 62 Town Wagon

</a>

Fit in here:

<a href="http://www.flickr.com/photos/35716845@N00/6916616924/" title="Electrical Connection from 74 Duster engine by derek at, on Flickr">

</a>

Are you supposed to be able to unscrew the old electrical sender by hand with that dial type thing?

I've also realized that I left the old sender in the old engine (long gone) as it broke off so I will have to get creative there though I do like Doc's creative approach.

While I'm loading photos, here is the beast:

<a href="http://www.flickr.com/photos/35716845@N00/6916647066/" title="1962 Dodge Town Wagon by derek at, on Flickr">

</a>

Derek

Volare4life · Post subject: (Mon Apr 09, 2012 8:21 pm)

no it won't fit but you can go to any parts store, and your best bet would have them look up the oil pressure sender for you pull it out of the box and try and match the sender, thinkin 3/8NPT, and find a brass adapter that you can screw that fitting into. BTW is that plastic tubing on the back of that old fitting ?? if so sun pro makes a really nice copper tubing kit complete with adapters and the copper line, in my experience never ever ever ever run plastic tubing in the cabin that will be a mess or worse ie oil, trans fluid, gas etc,

-Mike

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SlantSixDan · Post subject: (Mon Apr 09, 2012 9:52 pm)

Can't tell what thread size your oil pressure sender is, but looks like 3/8" NPT, which is also the thread size of the oil pressure sender; if so it should fit in place of the electric sender. Some engines came with a smaller-thread sender; in this case remove the reducer bushing from the oil pump and screw the mechanical sender directly into the oil pump.

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WagonsRcool · Post subject: (Tue Apr 10, 2012 10:04 am)

If the mech. gauge tube adapter is something like 1/4" pipe thread (NPT) then you can get a brass reduction bushing that will fit in the oil pump where the late-model electrical switch for the oil light is (3/8" NPT). Loosen the nut at the tube itself so you can spin the fitting without twisting the tube (or get a new copper tube kit as suggested)

For the temp gauge you'll have to figure out the fitting size (I compare my unknown fitting with hardware store pipe nipples in various sizes) & see how creative you can get. As I recall some year heads only had heater nipples & 1/8" NPT gauge sender holes. I've heard of some folks (carefully) drilling & tapping the head out to 1/4" NPT. Or you can try "frankensteining" a pipe T into the upper heater hose fitting.

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FrankRaso · Post subject: (Tue Apr 10, 2012 10:16 am)

I've added a tee so that I can continue using my warning lamp and also have a functional oil pressure gauge.

Dizzydean · Post subject: (Mon Apr 16, 2012 4:38 am)

Just out of curiosity is the water hole on the side of the block an option for the temp sender.

Mroldfart2u · Post subject: (Mon Apr 16, 2012 6:00 am)

Mroldfart2u · Post subject: (Mon Apr 16, 2012 6:04 am)

SlantSixDan · Post subject: (Mon Apr 16, 2012 7:19 am)

WagonsRcool · Post subject: (Mon Apr 16, 2012 12:35 pm)

That bung on the stat housing would be a good place for an electric radiator fan control switch. (that's what I used on a previous A-body installation)

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63 Valiant Wagon
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