balancer system removal - correction

[spike55_bmw]

Recent discussions with Mike Martin have pointed out an error in my recent posts on internal engine bolts torque values. I have confussed the required socket size, bolt shaft diameter, threaded area diameter, and nominal bolt sizing nomenclature and used the wrong torque vaues on the wrong bolts. An 8mm socket drives a something less than 6mm shaft / threaded area dia bolt but the Chap 5 torque table calls it a 6mm bolt. The same is true for a 10mm socket driven bolt but it is actually less than 8mm shaft dia / threaded area dia but it is call an 8mm bolt in the table. I, therefore, used torque values associated with those socket sizes, not the correct nominal bolt diameters. There are some other logic faux pauxs but I wanted to keep the list short, so as not to look like a total nut. I apologize for this misinformation and will post this 'correction' to any other thread that needs updated. Don R100, A6F

--- In DSN_KLR650@yahoogroups.com, "spike55_bmw" wrote: > > My Clymers says all 6mm case bolts are 18 ft-lbs and 8mm are 32 ft-lbs. Again, these are the ones that hold the two center halves of the engine together. The 8mm were especially hard to loosen, so they were probably 32 ft-lbs. I needed to use a 6pt socket to get enough bite to loosen. > > Maybe what (ft-lbs / in-lbs) you are looking at are for the outer layers (doohickey-outside and water pump-outside that don't see extreme forces and are really just covers to keep the oil inside but I might be wrong. Thanks for the heads up and I'll check it out. I find that the Clymers and the OEM manuals aren't as complete as I would like and I have made many notations in my Clymers (many greasy fingerprints too) to guide me through infrequent tasks or maybe its just my lazy mind. > > Don R100, A6F > > --- In DSN_KLR650@yahoogroups.com, Michael Martin wrote: > > > > Don, > > > > My Clymer manual says the 6mm bolts are supposed to be torqued to 71 in-lb, which is about 6 ft-lb. > > > > This closely matches the 69 in-lb called out in the instructions at http://www.leftcoastklrs.com/balancer_lever_upgrade.htm > > > > Mike Martin, > > Louisville, KY > > > > > > > > ________________________________ > > From: spike55_bmw > > To: DSN_KLR650@yahoogroups.com > > Sent: Sat, December 26, 2009 7:24:51 AM > > Subject: [DSN_KLR650] Re: Balancer system removal > > > > > > Come on in. The water is fine. Splitting is easy, putting together probably requires replacing some case-to-case 6mm bolts around the front counter-balance. None of mine in that area could make it to 18 ft-lbs without popping. > > > > Don R100, A6F > > >