Timing marks on crank & cam, also other issues

[TBDoc]

I have a 94 G6 Yamaha with a 9hp motor. I ran it low on oil and now the bottom of piston rod is hitting the crank, keeping it from turning any further. The engine is not seized. What is possible cause of this happening? I need to know how the timing marks line up inside the motor also. Thanks

[cgtech]

there is dots or dimples on each crank gear, and on the cam and balance shaft gears. the dot must line up and face towards its corresponding crank gear dot.

[rib33024]

Welcome to BGW

check out this thread and see if it helps


http://www.buggiesgonewild.com/gas-y...tml#post316629

I just finished rebuilding a G9 that didnt have any markings on the cranks counter balance gear as well. And its a bit tricky to get right, but there is a way.

I took a look through my stash of pics and this should help expain how to line them up.

On the crank you will only see one indicating mark, that one you line up with the mark on the cam gear. Now the balancer shaft, has a mark on it as well. With the 2 other marks lined up, line up the balancer shaft so that the mark is pointing towards the middle of the crank.

Some of the yamaha cranks just didnt have 2 indicating marks on the crank gear.. well the ones that ive seen.. Supposively in the rebuild manual these 2 marked cranks existed. lol

Dont forget to prelube the crank bearings and such when you put the engine back together, this will help pervent a dry start and seize the motor.