| Flatbob | -- 05-01-2012 @ 8:20 PM |
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I have an aftermarket temp. gauge that I want to use in an Offenhauser 425 head but when I install the probe into the head and tighten the nut the probe doesn't seat and moves back and forth in the opening in the head. I used this probe in my '36 water pump with no problem; any ideas as to what I'm doing wrong or do I have the wrong application?
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| Brendan | -- 05-01-2012 @ 10:12 PM |
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you need to get an adatptor, the threasa in the head are 1/2 pipe, the ones in the 36 water pump are diffrent, i dont know what they are. Can't spell my way out of a paper bag!
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| Flatbob | -- 05-02-2012 @ 8:18 AM |
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Actually, the nut tightens up just fine, the problem is the probe doesn't seat against the nut.
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| supereal | -- 05-02-2012 @ 2:25 PM |
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Are you sure that the body of the sender isn't bottoming out in the head before the nut is fully down? The hole is usually pipe-threaded, and the taper won't seat if the sender doesn't fit. I've seen this problem in some after market heads. The early senders changed in 1940to the 8A type.
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| Flatbob | -- 05-02-2012 @ 7:51 PM |
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Super, the probe goes too deep into the opening in the head for the nut when scr*w*d all the way in to make contact with the top of the probe; therefore the probe moves up in down in the opening and I would imagine I would have water shooting out of the head if I were to start the engine.
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| alanwoodieman | -- 05-03-2012 @ 5:05 AM |
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with the type of probe you are using you should have an adapter that has a shoulder for the probe to seat against and then tighten the nut.
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| supereal | -- 05-03-2012 @ 10:15 AM |
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C&G sells the bushing that allows early senders to be installed in later heads. Most of the aftermarket heads I've seen require the bushing, even when they are flatheads. The part number is B4A-10911-A. You can get info at 800/266-0470. C&G is an expetion to the rule that most vendor reps are clueless about applications.
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| Flatbob | -- 05-03-2012 @ 8:19 PM |
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Thanks for the help everyone, am going to try the hardware store for the bushing, if no luck will call C&G.
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| TomO | -- 05-04-2012 @ 8:13 AM |
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Flatbob, Does the washer by the sender element move or is it soldered to the element? If it moves, I would suggest that you contact the manufacturer of the gauge and ask them which sending unit is compatible with your application. I doubt if any bushing would solve your problem. If it doesn't move, look for a bushing that will allow the washer to be captive when everything is tight. Tom
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| Flatbob | -- 05-04-2012 @ 8:45 AM |
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TomO, problem is I can't find the bushing I need; Super suggested I try C&G but the picture in the catalog of their bushing isn't going to solve my problem.
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| Flatbob | -- 05-04-2012 @ 6:04 PM |
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Problem solved, broke down & bought new gauge, comes with an assortment of bushing adapters.
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| EFV-8 Club Forum : | https://www.earlyfordv8.org/forum |
| Topic: | https://www.earlyfordv8.org/forum/viewmessages.cfm?Forum=18&Topic=4617 |