Oil Temp Probe

[Aristarcus@aol.com]

Problem: Abbie (TB 0304) has both water and oil temp gauges which, from all appearances, are exactly the same instruments in all respects. The oil temp is taken from a probe similar to the radiator probe, but which attaches to the left side of the sump. The fitting that holds the probe is a nut with male/male threads on both ends. I don't know, but assume the threads are British Pipe. Their lengths are 0.368 inches on one side of the central nut and 0.265 inches on the other. The longer of these accepts the nut that holds the probe-- no problem. The shorter originally screwed into threads in the side of the sump, the walls of which are aluminium and very thin. How Abingdon expected these narrow threads in the wall to last more than one sump removal remains a mystery. In any case, it takes only one or two sump removals to destroy the threads. Mine are now shot. Seeking an alternative, I ordered Moss Chassis Part No. 361-060 (Item 42 in the Moss drawing), the adapter that accepts the water temp probe. But now another problem arises: The long thread on the adapter accepts the probe nut fine, but the short male side is too short to go through the sump wall, accept washers on both sides of the wall and a nut on the inside. That 0.265 inch length just doesn't hack it. Does anyone know where one can obtain an adapter with the same threads, but one having a through-the-wall thread length of not less than 1/2 or 3/4 inch? Until I can fix this, Abbie is down and out. Cheers, Skip

[Skip Kelsey]

Skip: The best way to install the probe fitting is to drill a hole in the oil drain plug, then silver solder or braze the adaptor in. The probe can then be inserted and screwed down. My car has been fitted this way for many years. Be very careful that you dont kink or break the capillary line though. Cheers: Skip................................. At 01:30 PM 2/26/01, Aristarcus@aol.com wrote:

>Problem: Abbie (TB 0304) has both water and oil temp gauges which, >from all appearances, are exactly the same instruments in all >respects. The oil temp is taken from a probe similar to the radiator >probe, but which attaches to the left side of the sump. The fitting >that holds the probe is a nut with male/male threads on both ends. I >don't know, but assume the threads are British Pipe. Their lengths >are 0.368 inches on one side of the central nut and 0.265 inches on >the other. The longer of these accepts the nut that holds the probe-- >no problem. The shorter originally screwed into threads in the side >of the sump, the walls of which are aluminium and very thin. How >Abingdon expected these narrow threads in the wall to last more than >one sump removal remains a mystery. In any case, it takes only one >or two sump removals to destroy the threads. Mine are now shot. >Seeking an alternative, I ordered Moss Chassis Part No. 361-060 (Item >42 in the Moss drawing), the adapter that accepts the water temp >probe. But now another problem arises: The long thread on the >adapter accepts the probe nut fine, but the short male side is too >short to go through the sump wall, accept washers on both sides of >the wall and a nut on the inside. That 0.265 inch length just >doesn't hack it. Does anyone know where one can obtain an adapter >with the same threads, but one having a through-the-wall thread >length of not less than 1/2 or 3/4 inch? Until I can fix this, Abbie >is down and out. Cheers, Skip > > > > > >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/