CMB 21 Valvola flywheel

[Jay Skutle]

Folks,

got an issue with the 10 degree header not fitting on my 21 valvola...

the header flange comes in contact with the back edge of the flywheel..

I know the header is correct, possibly the wrong flywheel?

Are there different varieties of flywheels that fit this engine?

I will post a pic of the engine assy ASAP...

thanks much

Jay

 

[John Knight]

Jay,

With a grinder, take off the bottom portion of the header just above the flywheel. Take enough off, about a section from the 5 to 7 o'clock position to get clearance for the flywheel. Just do not take enough off the bottom that is goes all the way through. It won't hurt a thing and this is typical for the valvola/MAC engines.

John

 

[Jay Skutle]

Jay,

With a grinder, take off the bottom portion of the header just above the flywheel. Take enough off, about a section from the 5 to 7 o'clock position to get clearance for the flywheel. Just do not take enough off the bottom that is goes all the way through. It won't hurt a thing and this is typical for the valvola/MAC engines.

John

John

I did consider grinding as you mentioned, just wanted to make sure before doing so...

thanks for the reply

Jay

 

[moparbarn]

jay, it is also common to have to clearance headers on ob's, to clear the pto. do what john describes, & it will work fine.