im trying to check my cranks number to see what i have. Does anyone know were to find these iv search all over and cant locate anything

 

side of the counter weight, if i remember right 50 oz balance motors have a casting number of 2MAE????

 

2M, 2MAE?

 

i have 2MAE so my guess would be its the correct 50oz balance crank.

IDK whats the matter, several machine shops say i probly have a balancer proplem and not a balancing proplem cause if it was a balancing proplem the vibration would get worse has the rpms raise. They said "its like a tire, it gets worse the faster you go", but what does a tire have to do with anything cause the crank is secured with the main caps. it doesnt go to wobbling idk just thought it was a stupid example.

Well when motor was together i tried a diffrent balcner and flywheel, and nothing looks out of the ordinary except all the rods have the correct parts numbers but on the end of the rod cap i have diffrent numbers. 1,5,6,7,and 8 and S 78. And 2 has 82 S, 3 has 79 S, and 4 has 83 S. IDK if these mean anything but the rods and caps are matching according to the stamped numbers on the side, what do yall think

 

Start over, what was done to the engine internally? Rebuilt? is it stock. Hard for me to track down a vibration without knowing whats going on

 

Weighed the pistons with rods today, all were within 2 grams of each other


its was rebuilt. Had about 3000 miles on it., the mains and rods are 10 over. Now i know the crank is a 50oz. And the pistons are 30 over. iv felt the vibration since i installed it at 1500 miles on the motor

Before the teardown we tried a diffrent balancer as well as a diffrent flywheel, both 50oz. Still had a vibration coming in at its hardest around 2600 rpms.