Re: Timing a Cub engine

Posted by El Toro on May 30, 2007 at 04:28:44 from (205.188.116.138):

In Reply to: Timing a Cub engine posted by riowens1 on May 29, 2007 at 19:20:19:

You need to get No1 piston near the radiator to TDC on the compression stroke. Remove No1 sparkplug and hold your thumb over the plug hole while someone hand cranks the engine until you feel compression against your thumb. I would then drop a large handle screwdriver on top of the piston. Have them keep slowly cranking the engine until the screwdriver quits rising. You need to watch the screwdriver closely. Make sure the handle is big enough so it doesn't fall into the cylinder.

When the No1 piston quits rising rotate the rotor on the mag to the No1 plug tower and install the mag on the engine.

Whenever pulling a mag or distributor always bring
No1 piston to TDC before removing them. Then don't move the engine. You just rotate the rotor
to the No1 plug tower and reinstall. Hal
PS: The same applies to your car or truck.

Replies:

• Re: Timing a Cub engine Bob Farrell 09:22:14 05/30/07 (1)
  • Re: Timing a Cub engine riowens1 09:30:26 05/30/07 (0)
• Re: Timing a Cub engine riowens1 09:21:06 05/30/07 (3)
  • Re: Timing a Cub engine El Toro 10:19:56 05/30/07 (0)
  • Re: Timing a Cub engine El Toro 10:16:39 05/30/07 (1)
    • Re: Timing a Cub engine riowens1 11:01:56 05/30/07 (0)

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