thehemikid
Well-Known Member
Couldn't hardly find, an aluminum weld-in bung for a mechanical temp gauge
bulb for my transmission pan. I did finally find a black anodized bulb extension from Pegasus Auto Racing
supplies, and in their reviews or notes someone mentioned shaving ~.010" so the nut will tighten enough
to allow the bulb to seal, and just finger tight verified that when I got it.
My plan was to take the anodize off and
weld around the hex to the pan, but after looking it over looks like an O-ring will work on it, with just enough thread left for full thread engagement to the pan. So I did that for now.
But my thoughts are, the weld idea would cut it down to just 1 item to possibly leak rather than 2 and also not allow the main body to vibrate loose.
The O-ring route is tempting, and the pan could use a spot face for the O-ring to seal better. Either way the internal female threaded sleeve portion needs to be shaves down a little so the bulb nut hex doesn't bottom first.
bulb for my transmission pan. I did finally find a black anodized bulb extension from Pegasus Auto Racing
supplies, and in their reviews or notes someone mentioned shaving ~.010" so the nut will tighten enough
to allow the bulb to seal, and just finger tight verified that when I got it.
My plan was to take the anodize off and
weld around the hex to the pan, but after looking it over looks like an O-ring will work on it, with just enough thread left for full thread engagement to the pan. So I did that for now.
But my thoughts are, the weld idea would cut it down to just 1 item to possibly leak rather than 2 and also not allow the main body to vibrate loose.
The O-ring route is tempting, and the pan could use a spot face for the O-ring to seal better. Either way the internal female threaded sleeve portion needs to be shaves down a little so the bulb nut hex doesn't bottom first.