1963 Ford 4000 temp gauge

Abbby

Member
I have 1963 Ford 4000 rowcrop 4 cylinder 172 cu inch. Temp gauge not working so took the old one out and ordered a new one. The head fitting is right in the back in a very tight spot. Tried hard to make sure I got a the right one. Well the one I ordered was pretty close but the sensor was just not right. A real bear trying to get the darn thing tightened up but just could not do it. Any advice?
 
(quoted from post at 20:59:56 09/04/14)

What doesn't fit right about it? Why will it not tighten up? Just a wild guess from no more info than is available here - does it need a bushing to make it fit?
 
Extremely difficult to get a wrench in to tighten due to where it is on the head. The stock gauge has a much thicker head allowing me to angle the wrench. The replacement gauge has a very thin head that strips very easily. I turned it in quite a ways and would not tighten the sensor which means leaks. Took off the whole darn battery box (PITA) to get better access. Tightened it further but would still not tighten the sensor. Sensor is different design then stock. Looking into an electric one unless I can find a stock one.
 
Yes, you have to remove the battery tray to gain access to the nut. Then you have to use a "flare nut" or "line" wrench (a box end with a small section cut out) to securely tighten the nut. If you use an open end wrench you are guaranteed to round off the nut.
 
Had the same problem.Ordered a couple from
Amazon.Nothing but cheap Chinese junk. Finally
just got my money back ,still looking for one
that's not junk.
 
Had a problem getting an aftermarket gauge to tighten up in a Jubilee. I suspect that the new gauge requires the bulb nut to thread in further, and with the age and corrosion, the threads are bad that far into the head. What I did was take a lockwasher approximately the same outside diameter as the largest diameter of the bulb and small enough to fit into the head. I then cut a small section out of the washer, enough to get it over the capillary tube. I put the washer between the bulb and bulb nut, then tightened. Since the bulb itself seals against the head and not the nut, the washer will not affect the sealing. It fixed the problem and did not leak.
 
Glad to hear others have the same problem, Flare nut wrenches I have will not fit in this spot. Way too tight to boss on head. I will keep looking. Unfortunately tractor is apart and I need it running.
 

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