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mine is a 36mm. I believe the 12v is the same. and yes it is clockwise facing the engine. the other way of telling on the fan is, look at it and see what direction it turns. they go the opposite way to come off, for the most part. there are exceptions.:thumbsup
Park Tools sells a thin 32x36 m/m wrench for bicycle headsets (any bicycle shop) - I use it to loosen the fan nut on my Bimmer (which is 'reverse' threaded) by "tapping" it with a metal (not composite) hammer/sledge to break it loose.
My method; Before removing the belt, clamp a vise-grip on it (not too tight), sticking out towards the drivers side. Get a 2X4 a foot and a half (or so) long, and place the end against the vise-grip. Whack the other end with a hammer. It should break loose easily.
'96 2500, CTD, 4X4 flatbed, Isspro gauges, Skyjacker D-25's, ThurenFab track bar, DSS, HD steering.
It isn't a 36MM. I am having a terrible time getting it loose. I have a fan removal tool which is holding the fan very nicely, just can't get the nut to break loose. Clockwise looking at the front of the engine to loosen the nut correct??
I just took a punch to the edge of the nut, beat it good once and it was loose, nothing was holding anything back except the regular tension of the belt... I think it is 1 7/16" ... And yes, if you are at the front of the engine looking at it and the wrench is on the right, yes beat it down..or clockwise.. it will come
1990 F250 7.3 IDI NA auto 4x4 250k
1997 2500 12V Cummins 5spd 2wd 322k miles #100 plate, SB Con O, 26.6MPG-55mph
Thanks for the advice. I finally got it. Had to vice grip the pulley against the cover and swung at the wrench with a 2x4. After about 5 minutes once I got the pulley to stop moving it broke loose. Was tough coming all the way off. Trying to figure out why, I have had it off 2 other times. Wandering if the 4000+ rpm really snugged it on there.
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