09-19-2021, 11:00 AM
My 8v92 has a flanged drain bolt /plug with regular hex bolt head for wrench don't know exact size , thinking it's 5/8 or 3/4 straight threads , not pipe . Detroit manual calls for 24 to 35 lb-ft torque , but no size or type of plug is given . Those figures sound like a flanged plug .
I would look for a longer plug , I think the male square drive plug may have more threads than the female drive .
NPTF fittings exist , specifically for fuel applications, perhaps that would tighten better ?
Mil spec Teflon tape is thicker than normal tape , if wrapped on threads that don't protrude into the pan " proper " there would be no contamination.
I tend to fuss over such things that can cause a catastrophe as well .
I would look for a longer plug , I think the male square drive plug may have more threads than the female drive .
NPTF fittings exist , specifically for fuel applications, perhaps that would tighten better ?
Mil spec Teflon tape is thicker than normal tape , if wrapped on threads that don't protrude into the pan " proper " there would be no contamination.
I tend to fuss over such things that can cause a catastrophe as well .
1986 #89
VIN 007
Detroit 8V92 TA 475 HP
Allison four speed
Chris and Sharon Hand