7080 counterbalanced crankshaft

jim_from_uny · Mar 11, 2011

ac literature states that 7080 motor crankshaft is counterbalanced. when i look at service manual and parts manual i see no mention of this. i was expecting a gear running against crank. what does ac counterbalance mean ? got pics on agcoparts book

Bob · Mar 11, 2011

In-line sixes don't need a balance shaft/gear setup.

The weights in question are the weights opposite each crank throw.

Anonymous-0 · Mar 11, 2011

the counter balance on the allis 7080 is on the lower crankshaft pulley. you do have to inspect them once a year to make sure they are not coming apart. this can be seen by look at the pulley and if there is a rubber ring coming out the front of the pulley. it is starting to fail. if not fixed you will notice a vibration coming from the front of the engine. this some times has been linked to the crankshaft breaking. it is a good idea to check this out.

Bob · Mar 11, 2011

Let's call that a "torsional damper" or "vibration damper" rather than a "counter balance", which is it NOT!

7080 counterbalanced crankshaft

jim_from_uny

Member

Bob

Well-known Member

Anonymous-0

Well-known Member

Bob

Well-known Member

Similar threads