Re: 1948 Cub Mag Problems

Posted by El Toro on July 17, 2007 at 00:29:52 from (205.188.116.73):

In Reply to: 1948 Cub Mag Problems posted by On2Wheels on July 16, 2007 at 19:04:25:

You need No1 piston at TDC on the compression stroke. Remove No1 sparkplug near the radiator and hold your thumb over the plug hole while someone slowly handcranks the engine. Once you feel the compression you can drop a large handle screwdriver into the plug hole and as someone
cranks the engine you watch the screwdriver rise
until it stops. Don't drop this into the cylinder.

Then take a look at the notch on the damper pulley to see if it's aligned with the pointer.
Pull the cap off the mag and see where the rotor is pointing. It should be at the No1 plug tower.
Your plug wires should be in this firing order:
2-1 The rotor turns CW.
4-3

If the rotor is off you will need to remove mag and rotate the rotor to the No1 plug tower and reinstall the mag. Hal

Replies:

• Re: 1948 Cub Mag Problems On2Wheels 03:42:37 07/17/07 (2)
  • Re: 1948 Cub Mag Problems El Toro 04:14:03 07/17/07 (1)
    • Re: 1948 Cub Mag Problems On2Wheels 06:02:10 07/17/07 (0)

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