The Ford Barn

34 fordor owner · 09-03-2021, 06:39 PM

Hello, I had a quick question about the distributor inner and outer caps. I recently changed the spark plug wires on my car and noticed when I got the inner and outer caps back on the distributor they didn't exactly line up. The outer caps have some small spaces around the caps and they are not fit to the dome distributor but they are still hooked in. Would this cause any problems within the ignition system or getting a spark to the plugs? New to this whole thing and I am learning as I go. Thank you!

koates · 09-03-2021, 07:02 PM

Are you sure you have the correct caps ? In 1936 the caps changed but look the same. The part number on the 36 caps starts with 68 which is moulded into them. Your original cap part number starts with 18. The rota also changed in 1936 to match the newer cap. You just cant mix them up otherwise the engine will not run. Regards, Kevin.

34 fordor owner · 09-03-2021, 07:14 PM

Quote:

Originally Posted by koates

Are you sure you have the correct caps ? In 1936 the caps changed but look the same. The part number on the 36 caps starts with 68 which is moulded into them. Your original cap part number starts with 18. The rota also changed in 1936 to match the newer cap. You just cant mix them up otherwise the engine will not run. Regards, Kevin.

Yes, the caps fit before changing the wires.

Brian · 09-03-2021, 08:52 PM

Did you fit the gasket[s] between the inner and outer caps?

Terry,OH · 09-04-2021, 06:45 AM

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No gasket on the inner cap just between the two caps. The inner cap has to fit all the way inside the recess of the distributor and be flush to the outer rim of the recess. You can change left to right they are not side specific. Sometimes new inner caps need to be slightly sanded to fit properly They should be a tight fit by hand with no wobble.

09-03-2021, 06:39 PM	#1
34 fordor owner Senior Member Join Date: Jan 2021 Location: Alamance NC Posts: 118	1934 Dome distributor caps Hello, I had a quick question about the distributor inner and outer caps. I recently changed the spark plug wires on my car and noticed when I got the inner and outer caps back on the distributor they didn't exactly line up. The outer caps have some small spaces around the caps and they are not fit to the dome distributor but they are still hooked in. Would this cause any problems within the ignition system or getting a spark to the plugs? New to this whole thing and I am learning as I go. Thank you!

09-03-2021, 07:02 PM	#2
koates Senior Member Join Date: May 2010 Location: Melbourne Australia. Posts: 2,079	Re: 1934 Dome distributor caps Are you sure you have the correct caps ? In 1936 the caps changed but look the same. The part number on the 36 caps starts with 68 which is moulded into them. Your original cap part number starts with 18. The rota also changed in 1936 to match the newer cap. You just cant mix them up otherwise the engine will not run. Regards, Kevin.

09-03-2021, 08:52 PM	#4
Brian Senior Member Join Date: May 2010 Location: Masterton, New Zealand Posts: 3,834	Re: 1934 Dome distributor caps Did you fit the gasket[s] between the inner and outer caps? __________________ Unfortunately, two half wits don't make a whole wit!

09-04-2021, 06:45 AM	#5
Terry,OH Senior Member Join Date: May 2010 Posts: 4,751	Re: 1934 Dome distributor caps Sponsored Links (Register now to hide all advertisements) No gasket on the inner cap just between the two caps. The inner cap has to fit all the way inside the recess of the distributor and be flush to the outer rim of the recess. You can change left to right they are not side specific. Sometimes new inner caps need to be slightly sanded to fit properly They should be a tight fit by hand with no wobble.