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CRANK WON'T TURN

J

J B

New User
I had a 9n ford tractor engine rebuild but it wouldn't run right. I replaced the carb. the distributor and it still wouldn't run right. You could turn the crank with a wrench easy. So i decided to tear it down myself. I lapped the valves and rehoned the cylinders. I torqued the piston rods to 35 ft.lb. After that i couldn't turn the crankshaft , it wouldn't budge. I loosen the rod nuts and it would turn fine. Does anybody have any answers. It doesn't make sense.

JB
 
(quoted from post at 21:57:54 11/09/17) I had a 9n ford tractor engine rebuild but it wouldn't run right. I replaced the carb. the distributor and it still wouldn't run right. You could turn the crank with a wrench easy. So i decided to tear it down myself. I lapped the valves and rehoned the cylinders. I torqued the piston rods to 35 ft.lb. After that i couldn't turn the crankshaft , it wouldn't budge. I loosen the rod nuts and it would turn fine. Does anybody have any answers. It doesn't make sense.

JB
Click to expand...

makes sense to me. You have the rod bearings/caps installed incorrectly.

TOH
 
The rod caps must remain with the rods they came off. Mixed rods and caps won't work.

Match the numbers.

Zane
 
(quoted from post at 18:35:15 11/10/17) The rod caps must remain with the rods they came off. Mixed rods and caps won't work.

Match the numbers. Thank you

Zane
Click to expand...
 
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