Spark Rod Adjustment

[DC 69]

'29 CCPU runs great, but...

What do I need to adjust in order to use correct 17" Spark Control Rod and get full spark advance? With bent rod I get full retard & full advance. With 17" rod, I don't have enough arm movement to get full advance. I have Model B motor and can't rotate steering column.

Suggestions greatly appreciated.

 

[Bob C]

Looks like you have the forged arm upper plate. I think I read in the Service Bulletins
that the early arm is narrower than the later stamped arm so the earlier slot in the
cap was narrower.


Bob

 

[1930 coupe]

get a sleeve so you can adjust it
most of the vendors sell them

 

[Mountain Dew]

Is there a way to take the ends off of the rod, shorten the rod and re-install the end?

 

[Joe K]

Is there a way to take the ends off of the rod, shorten the rod and re-install the end?

Probably not given that the rod end is "swaged" on and "de-swaging" would involve scrapping the pill-cover (what it looks like.)

Best solution might be to buy into the "adjustable" link mentioned - or possibly "bend" the rod?

I have seen MANY bent rods. Up to a 20 degree bend. You might get creative and heat it up and bend the straight portion into a small circle - just for decoration. If you make it too short, you can heat an and "forge" it longer per blacksmithing skills using hammer and vise pad.

Joe K

 

[Synchro909]

None of the three rods used in a RHD Model A are available (Is anybody EVER going to make them???) so I shorten LHD ones by cutting them, overlapping the pieces and a couple of tack welds are enough to hold them. Very few people comment on it but when they do, I explain that even though we can get nearly anything we need for these cars, those are not available. Go figure, I say with a shrug of my shoulders.

 

[Railcarmover]

I do it for carb linkage,10/32 thread size..

https://www.kimballmidwest.com/All-...aintenance/Bearings/Rod-End-Ball-Joints/62207

 

[Joop]

Loosen the tank steering column bracket in the car
Loosen the clamp on the bottom of the steering column
Turn the steering column to adjust the rod.
Works all the time

 

[Synchro909]

Loosen the tank steering column bracket in the car
Loosen the clamp on the bottom of the steering column
Turn the steering column to adjust the rod.
Works all the time

Er, no it doesn't!!

 

[The Master Cylinder]

Loosen the tank steering column bracket in the car
Loosen the clamp on the bottom of the steering column
Turn the steering column to adjust the rod.
Works all the time

He has a 7 tooth box, can't rotate.

 

[katy]

Can you not bend the small lever at the lower end of the steering box?