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Water Temp sender in water pump - 351C
#11
You can also tap the heater port with an NPT thread and connect the sender. Once you tap with NPT you will have access to all kind of adapters. I tapped mine and added an adapter with a 5/8 barbs for the heater hose. This is a good idea. I think i could find a way to connect the sender to the adapter.

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[Image: 20160929_171923_edit2_small.jpg]

1971 M-Code Mach 1 w/Ram Air, 408 stroker, 285/291 0.558" roller cam, Blue Thunder intake, TKO600, Hooker headers with electric cut-offs, FiTech EFI w/ RobBMC PowerSurge pump
Strange center section with Truetrac, 3.5 gear and 31 spline axles, 4-wheel disc brakes
[+] 1 user Likes tony-muscle's post
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#12
Thanks Don. I do have the bypass hose, it's just very short and mostly curved so not sure this adapter will fit in that spot very cleanly. That and it's $40+.

Tony, interesting idea, I'll think about that.

Going back to my original question, if the heater hose is OK, what about the DVCV port I looking at on the water pump? Not sure about the water flow, but if I'm not mistaken that should get engine temp water all the time regardless of the thermostat or am I mistaken? While not right at the block, it's very close and it seems like it should show pretty close to engine temp. I am hooking this to the stock engine temp gauge which doesn't actually have numbers on it. Seems like if it's close to engine temp and will let me know if I am getting a big increase that it might be fine.
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#13
I looked at brass fittings from Lowe's, and I could build one for less than $25, wouldn't look as slick, but be functional.

Tony's idea is also a good one, and would look better than an adapter hanging on the hose. It's also a good idea to remove the pressed in hose connection and tap it for a screw-in connection, get rid of the thin-walled prone to rust out connector.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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#14
So I was thinking a little more about this. I couldn't verify, but I think the NPT thread would be 3/8" on the block end. You could add a "street" tee fitting that has a male end and two females (such as https://www.ebay.com/itm/Brass-Pipe-Stre...1374668060). The male would be threaded into the block. The middle connection would be a female NPT where you would thread the sender. On the other female end, if you are using the heater hoses, you will thread a fitting with a 5/8 hose barb (such as https://www.ebay.com/itm/3-8-NPT-to-5-8-...SwiDpbFsDM). I think i would try this idea sometime down the road so I can relocate my sending unit to read before thermostat temperature. I now have the EFI sensor in the OEM location and the gauge on the after-thermostat location, which always read low.

[Image: 20160929_171923_edit2_small.jpg]

1971 M-Code Mach 1 w/Ram Air, 408 stroker, 285/291 0.558" roller cam, Blue Thunder intake, TKO600, Hooker headers with electric cut-offs, FiTech EFI w/ RobBMC PowerSurge pump
Strange center section with Truetrac, 3.5 gear and 31 spline axles, 4-wheel disc brakes
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#15
I have a stripped down block hanging on the engine stand, I'll verify the size needed today.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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#16
In 1973 Ford used an H-pipe spliced into the heater hoses. I had it on my car but I replaced it with the 351M thermostat housing with the ports I mentioned earlier.
[Image: 351-C-VACCTRL.jpg]

[Image: Heater-Hose-H-Pipe-D3-OZ-18-B402-B-1.jpg]

1973 H Code Convertible - Medium Copper Metallic - June 8, 1973, Built Ford Marketing Sales Vehicle
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[Image: satellite.png] Proud Space Junk Award Winner!












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#17
Tapping the hose connection on the block will require a 3/8" NPT tap.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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#18
What would be the purpose of having the H pipe in the heater hoses? Although it does create an additional npt port. Was this only used on the 73's?
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#19
(05-29-2019, 08:14 AM)SteveO_71 Wrote: What would be the purpose of having the H pipe in the heater hoses? Although it does create an additional npt port. Was this only used on the 73's?

You got it. That is all it was for. I think is was only on 73 and 74 (ie Torinos, etc) years and I have only seen it on 351Cs, but it may have been used on other engines.
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#20
(05-25-2019, 09:39 PM)TheDude Wrote: Hey guys, this seems like a dumb question, but I've wasted a bunch of time on this little thing so figured I'd try and waste your time as well.

I'm trying to add a second temp sender on my 351C. The first one in the stock location is currently being used for the electric fan. So I need a 2nd location for the actual gauge. There is an inlet is currently capped on the water pump itself just below the heater connection. Seems like a logical choice but the sender doesn't fit in that spot. Bought a bunch of adapters locally and online and they are all the wrong size. Does someone know what adapter I need to use to get the stock sender in that location? 

Sorry to waste time on such a little thing, but been screwing around with this for a couple weeks now and just want to get this done as it's holding up a bunch of other stuff for me so thought I'd ask. 

Thanks

What doesn't fit? The sender into the adapters or the adapters into the water pump?

Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic! thumb

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