rebuilding a z6, problems with #1 rod bearing causing too much friction
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rebuilding a z6, problems with #1 rod bearing causing too much friction
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
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
motor ran before but rebuilding for a friend cuz it had 230k miles
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Re: rebuilding a z6, problems with #1 rod bearing causing too much friction (md88hfcrx)
do you have a micrometer is so mic them ans see if one is thicker than the rest i have had a few times they gave the wrong bearings did you use plastigauge? what was the measurment..
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Re: rebuilding a z6, problems with #1 rod bearing causing too much friction (caseyhamm68)
didnt use a plasti gauge. all the bearings came out of the same package but i'll check it through
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Re: rebuilding a z6, problems with #1 rod bearing causing too much friction (md88hfcrx)
what kind of bearings (brand)? you know you have codes on you block, crank and rods that are used for bearing codes (size=color) but those code are only good for o.e. bearings and are only a guideline to get you in the ballpark. buying aftermarket bearings is a shot in the dark especially if you havent measured clearance in any way. using the factory codes you can end up with a differant size bearing on every journal. aftermarket may be cheaper but one size doesnt fit all
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Re: rebuilding a z6, problems with #1 rod bearing causing too much friction (md88hfcrx)
have you mic'd or plastigauged yet? go to autozone and get some (green), $10? that journal is obviously to tight regardles take the codes off the crank and rod for that journal and go to honda and get the proper bearing.
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Re: rebuilding a z6, problems with #1 rod bearing causing too much friction (nub)
yeah i need to plasti gauge everything. thanks . how much do bearings run from honda?
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