Snug is good. Torqueing steel bolts into aluminum always has a pucker factor, the torque specs should always be less than in other applications. If it's a fine thread it's even hinkier. Here's a link to a general torque chart http://www.hastingsinc.com/Service%20Tips/torque.htm If the aluminum threads are already shot and you've determined that the leak isn't through the sensor unit, JB weld is always a consideration. I cemented an oil return elbow fitting into the stripped and rebrazed screwed up piece of s#*t oil pump threads of an old Indian with it and it's still holding after several years and lots of miles. Patched a 1/4" hole in the bottom of the dishwasher, which is a pretty extreme environment if you think of it, and I'm still not washing dishes--but I digress.
Now that I've thought about this some more, 29 foot pounds sounds a little steep. Anyone else care to provide thoughts on the torque spec for the oil pressure sending unit?
Greg Bender wrote:
- as for torque, since we are dealing with a 12 mm x 1.5 mm steel switch
screwing into an aluminum block, I would do it up to a MAX of about 29 foot pounds.