C timingpicture

Dougct · Apr 11, 2010

What does this mean about my timing,or does it.The C has a mag.It does"chug" sometimes when under a load.Thanks

rustred · Apr 11, 2010

whats the timing set at?

gene bender · Apr 11, 2010

Your mag is in time or it wouldnt start as they fire on TDC when the engine is cranked then when it starts it will go to around 32 deg advanc when running as there is no curve on that mag so it is in time or it wouldnt even start.

Coax · Apr 11, 2010

I think he's asking why are the corners of the contacts burning off???The one ccw of the top is worse than the top one..I unfortunetly don't have an answer for you I haven't seen that on mine yet....Good Luck!

Janicholson · Apr 11, 2010

The rotor could be one tooth off, or the rotor could be one that fits but is not correct. Jim

teddy52food · Apr 11, 2010

Looks like the rotor gear timing is off. Set it on the clockwise mark.

Dougct · Apr 12, 2010

Do I have to split the mag to set the rotor gear timing?I have never heard of that.

Dougct · Apr 12, 2010

I see what you mean,makes perfect sense Thank you!

teddy52food · Apr 12, 2010

After the rotor is off, there are 3 screws to remove. Then you can check and or replace the points too if they are bad. Take the 2 small screws off the plate where the large gear is. On the small gear there are 2 teeth with the edge milled off. those should match up with the C mark on the large gear.

Dougct · Apr 12, 2010

Teddy,I have a H4 mag and when I took off the plate those 2 gears had no such markings,but in the end,when the mag snaps,the rotor should line up with its cylinder contact?Right?Because mine was snapping before the matching contact.

C timingpicture

Dougct

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