What is the correct timing Advance setting.

[colin1928]

For those that have what is basically a B model engine High comp head touring cam larger valves
the B model timing will work best more advance than an A to start and idle and around the same for total advance
Too Retarded is just as bad as too advanced for any engine

[tbirdtbird]

George! Is there no hope??!!

[George Miller]

Maybe there will be a little hope? Maybe I'm just getting old.

[Nabco]

New guy question....being that all cars are going to be different as far as where your spark advance lever is set for in town driving vs cruising is there a way to test where it should be. I saw something on model-a.org, it said something like pull the lever down until romantic increases and note where that is, that will be the best place to keep it for every day driving.

[Nabco]

Here's the instructions.

[Patrick L.]

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Originally Posted by JOHN CT

I've been following this thread so I was curious. I have the Nerex timing gauge installed. Went out to the A ,dugout the old timing light.Fullretarded it's at 10 btdc to fully Advance at 35 atdc it runs great ( I think) What are your thoughts?
Thanks
I forgot to mention it's a stock motor

retard at 10º BTC and full advance at 35º ATC ?

[Tom Wesenberg]

Originally Posted by JOHN CT

I've been following this thread so I was curious. I have the Nerex timing gauge installed. Went out to the A ,dugout the old timing light.Fullretarded it's at 10 btdc to fully Advance at 35 atdc it runs great ( I think) What are your thoughts?
Thanks
I forgot to mention it's a stock motor

If it runs great...........don't touch it.

Most problems start from tinkering with a good running engine.

[stouchton]

Originally Posted by Tom Wesenberg

If it runs great...........don't touch it.

Most problems start from tinkering with a good running engine.

I resemble that remark.....

[Nabco]

Originally Posted by forever4

Is that written on a grain of rice? I remember that from Ripleys Believe It or Not when I was a kid.

Sorry posted that from my iPhone and never looked at the picture, here's a link to the page, it starts about half way down under "Using Carberetor to Check Engine Timing"

http://www.model-a.org/controls_adjustments.html

[JOHN CT]

Originally Posted by forever4

Better measure again. That is completely mixed up, and impossible. BTDC is advanced, and ATDC is retarded, and you only have a grand total of 40 degrees to work with, not 45.

sorry if I had it backwords its 10deg ATDC and 30deg BTDC thanks

[stouchton]

Instructions posted on the model-a.org website seem wrong to me.

It appears they have the points opening when the spark advance is 3/4 of the way down?? By my thinking this would have the timing severely retarded.

Or do they mean 1/4 of the down, with 3/4's of the way yet to go??????


I have always done "3 clicks" down. So that the base timing is a few degrees after TDC.

[tbirdtbird]

Do Tom W's method and it won't matter where the lever is

[zzlegend]

My old Indian Grand father taught me years, and years ago, Lever up, start engine, back out of driveway, lever down to about 9 or 10 o'clock, go drive.
Things use to be so simple. . He didn't worry about degrees, unless it got over 90. I still drive that way today. I must be getting old.

[tbirdtbird]

that is perfect for a stock motor with a 4.2 head.
It all changes tho once you start hanging performance goodies on the motor