Am I doing something wrong?

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Model T Ford Forum: Forum 2014: Am I doing something wrong?
Top of pagePrevious messageNext messageBottom of page Link to this message  By G.R.Cheshire on Wednesday, June 25, 2014 - 10:10 am:

I removed the "lawn Mower carburettor" from my 27 and replaced it with a Kingston L-4 and I found I could hand crank on battery so I thought I would see if I could hand crank on magneto, it did crank then I realized that I did not have the spark lever fully retarded. OOPS! So I shut it down and this time I made sure that the spark lever was fully retarded, the car would not hand crank on magneto. I checked the timing and it seems right,the car will crank on magneto with the spark fully retarded using the starter but to hand crank on magneto I must advance the spark lever 4 or 5 notches. Am I doing something wrong or do some cars like a little advance?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mike Garrison_Rice Minnesota on Wednesday, June 25, 2014 - 10:20 am:

GR, I have always advanced my timing 4 or 5 notches. I've never had a Model T kick back on the crank and when the car is properly tuned I've never had one that didn't start.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Larry Bohlen, Severn MD on Wednesday, June 25, 2014 - 10:26 am:

G.R.

Do a topic search on spark advance. I think this has been discussed several times. When cranking on Mag. like Mike mentions you need a bit of advance to hit the proper place on the AC wave from the Mag.to hit. Sounds like you have her tuned well.

Larry


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Gregush Portland Oregon on Wednesday, June 25, 2014 - 10:30 am:

If it was running why did you shut it down? :-)
If timed correct, 4 to 5 notches sounds about right.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jim Thode Chehalis Washington on Wednesday, June 25, 2014 - 10:33 am:

If your timing is set to 15ATDC when fully retarded, then a few notches of advance is needed when hand starting on mag power. That is normal.

I set my timing just after TDC and hand crank start on BAT and MAG with full retard. Works either way, your choice.
Jim


Top of pagePrevious messageNext messageBottom of page Link to this message  By Erik Johnson on Wednesday, June 25, 2014 - 10:43 am:

Worth mentioning:

The owners manual says the spark lever should be set at the third or fourth notch when starting on mag.


Top of pagePrevious messageNext messageBottom of page Link to this message  By G.R.Cheshire on Wednesday, June 25, 2014 - 10:46 am:

Thanks all I had never been able to hand crank before so this is new territory and it is great to "show off" at cruise in's


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