Duraspark help is needed

[Anonymous]

I have a 76 Mav with a 250 and C4. Great car. I am in the middle of trying to build the 250 to 1970 spec. So far I have de-smoged the six and replaced the carb YFA to an RBS. A couple of weeks ago, I changed the timing change chain and gears to the '70 setup. Today, I bought a set of Advance Curve Springs, Mr. Gasket #925D, and replaced the origional set. When I took the Armature off the Sleeve, I never saw a roll pin. My work area was clean and I would have seen something if it was there. This is where I need help, can anyone tell me what the size of the roll pin? I will go buy one tomorrow.
Thanks,
Ken

 

[Stubby]

Do you have some small drill bits that you can use to match up to the bore? If so you can figure it out that way.

 

[Anonymous]

Ok, with that, is the length the distance of the plate assy shaft thru the sleeve to the top of the armature?
Thanks,
Ken

 

[Stubby]

The length appears to match the thickness of the reluctor ring. Aproximately 3/8"

 

[Anonymous]

Today I measured the dia to be 3/32 of an inch. I added a spring pin instead of a straight pin. Then put it back together. Now the car is running great.
Boy, what can I mess up tomorrow?
Thanks for the help,
Ken

 

[Hot 6t Falcon]

It's not called "messing up"... It's called bonding.

These ARE the good times that you'll treasure in the future...

Good Luck with it
Dennis S

 

[wsa111]

Ken, easy fix, the roll pin is .098 in diameter.

You can purchase a roll pin assortment from advance auto & shorten the pin to the thickness of the reluctor.

If you pm me with your name & address I will send you one in the mail.

I just purchased a pack of them from my local ford dealer & would be more than happy to send you one. William

 

[Anonymous]

Thanks for the offer William,
I went to ACE and bought a 3/32 (.094 dia) spring pin and pressed it in. It seems to work great.
Ken