Crank Blocking Technique

[2_DONE_THE_TON]

hey guys!

i need to reassemble my RD motor after a long time and im pretty happy everything is coming back together!

so heres the question.the motor is in neutral so i will need to "block" the crank to put back on the clutch, generator, et cetera....

do you guys put in gear to do this?isnt that bad for the gearing of the motor?

my machinist (more a car guy) told me to stick a piece of aluminum between in the crank slot (see picture)...is this ok for the motor or will it destroy my crank...i must admit i used for dissambling the motor and nothing happened...the crank is true.

or there is this other way i read about...putting a piece of wood or aluminium under both pistons...what you guys think?

thanks in advance!

 

[Spoonz]

Putting a bar under the piston skirts like that is a good way to damage the poison. You'd be better off using a screw driver between the crank gear, it's at least hard steel.

 

[2_DONE_THE_TON]

Putting a bar under the piston skirts like that is a good way to damage the poison. You'd be better off using a screw driver between the crank gear, it's at least hard steel.

hey spoonz.by crank gear you mean the slot where i put the aluminium piece in on picture 1 and 2 ?

 

[Spoonz]

No, I usually put the side gear on and the clutch basket. Use a flat screw driver or a small pry bar to wedge the gear. This will hold the crank and not damage anything as you don't want to be on any aluminum as it will mar or break. The correct tool would be a steel wedge or some kind of socket to go over the crank to hold it from rotating. The screw driver method works and I have yet to damage a gear.

 

[2_DONE_THE_TON]

No, I usually put the side gear on and the clutch basket. Use a flat screw driver or a small pry bar to wedge the gear. This will hold the crank and not damage anything as you don't want to be on any aluminum as it will mar or break. The correct tool would be a steel wedge or some kind of socket to go over the crank to hold it from rotating. The screw driver method works and I have yet to damage a gear.

so where do you put the flat screw driver in?you mean between primary and clutch basket dont you?

how do you get the primary and clutch basket on?block on the other side?

thx man!!

 

[Spoonz]

For the inner clutch drum, I just use the screw driver through the outer basket and onto the splines on the inner.

 

[alzcbz]

I have used a penny wedged between those two gears, clutch and primary. The penny is obviously much softer than the hardened gears and will be sacrificed. As you tighten the bolt, the penny will be pulled into the gears and block rotation.

 

[Spoonz]

Yes the penny method works too, as long as you have the penny in a good soot. Too far in and it can get stuck on the case, too far out and it will shear off