rebuilding z6: problems with rod bearings
#1
rebuilding z6: problems with rod bearings
i am rebuilding a z6 back to stock. i got the pistons/rods and new rings in, all new bearings. no machine work except for me doing a light hone to bring back the crosshatch.
when i torqued down the # 2, 3, and 4 rod caps the crank would still spin easily (considering the friction of the pistons), but when i torqued down the #1 rod cap the crank will barely spin over. i put them at 23 ft/lbs. i put the torque wrench on the crank and it takes 50-55 ft/lbs to spin
i reset the rod bearing on that cylinder, but still. if i leave it at about 15-18 ft/lbs it still spins easily (considering the friction of the pistons)
ANY IDEAS? Trying to get this thing out so i can start my build
I am at work so i cant post no ****, sorry.
Thanks
motor ran before but rebuilding for a friend cuz it had 230k miles
when i torqued down the # 2, 3, and 4 rod caps the crank would still spin easily (considering the friction of the pistons), but when i torqued down the #1 rod cap the crank will barely spin over. i put them at 23 ft/lbs. i put the torque wrench on the crank and it takes 50-55 ft/lbs to spin
i reset the rod bearing on that cylinder, but still. if i leave it at about 15-18 ft/lbs it still spins easily (considering the friction of the pistons)
ANY IDEAS? Trying to get this thing out so i can start my build
I am at work so i cant post no ****, sorry.
Thanks
motor ran before but rebuilding for a friend cuz it had 230k miles
#10
Re: rebuilding z6: problems with rod bearings
most of the people i have talked to use acl or whatever std bearings (even honda shops)...obviously the correct numbered honda bearings are better but i just plastigauged my std king bearings and it seems good to go