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Pertronix Will Not Drop In

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Old Aug 12, 2024 | 10:16 AM
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Pertronix Will Not Drop In

Hello,
I have a 1956 F100 with a 272. I went to install a new Pertronix Flame Thrower. The distributor hits the head and wont install. I am estimating I am 3/8" away from the distributor dropping in. Any suggestions - Thanks
 
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Old Aug 12, 2024 | 10:58 AM
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Originally Posted by mikeys1956
Hello,
I have a 1956 F100 with a 272. I went to install a new Pertronix Flame Thrower. The distributor hits the head and wont install. I am estimating I am 3/8" away from the distributor dropping in. Any suggestions - Thanks
Is the Flamethrower longer than your old coil?

A picture will help.
 
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Old Aug 12, 2024 | 11:13 AM
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The shaft and gear measured the same as the stock distributor. One thing I noticed is the Pertronix is approximately 4" in diameter, the stock distributor is approximately 3.5" in diameter. I will take pics and send. Thanks
 
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Old Aug 12, 2024 | 12:08 PM
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Originally Posted by mikeys1956
The shaft and gear measured the same as the stock distributor. One thing I noticed is the Pertronix is approximately 4" in diameter, the stock distributor is approximately 3.5" in diameter. I will take pics and send. Thanks
The Flamethrower is the coil, correct? So the problem is the size of the distributor?
 
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Old Aug 12, 2024 | 12:11 PM
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Flamethrower is branding and covers this distributor as well:

https://pertronixbrands.com/products...1&currency=USD
 
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Old Aug 12, 2024 | 12:15 PM
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Here are some pics:
The blacked marked area is what appears to be hitting the distributor.





 

Last edited by mikeys1956; Aug 12, 2024 at 12:23 PM.
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Old Aug 12, 2024 | 02:41 PM
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Have you got the oil pump drive and camshaft indexed? Looks like it should drop in if it was.
 
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Old Aug 12, 2024 | 02:55 PM
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The oil pump and shaft are new. While the engine was on the stand, I used a 0.25" socket to check the oil pressure.
 
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Old Aug 12, 2024 | 03:06 PM
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If the new dist is truly hitting that tiny spot on the head, a grinder will make quick removal of that little piece of flash on the corner of that pad. No big deal. But do make sure it truly is hitting and that it's actually keeping it from dropping in. What you're describing is common when the dist shaft isn't fitting down over the oil pump drive shaft. You might try rotating the dist shaft slightly, or turning the pump drive shaft slightly for them to mesh, which is what 5851a is saying.
 
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Old Aug 12, 2024 | 03:10 PM
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Thank all of you for your advise. I will try to install again later on. I was moving the distributor body and shaft yesterday and had no luck. Maybe I was making to big of adjustments.
 
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Old Aug 12, 2024 | 03:33 PM
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i have never tried using a pertronix distributor, i only install points replacement modules.
 
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Old Aug 12, 2024 | 05:22 PM
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OK, it is definitely the head stopping the distributor from dropping in. I did a little filing, not enough. If you look at the distributor, you can see where it is scratched from hitting the head

 
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Old Aug 12, 2024 | 05:37 PM
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OK, it is definitely the head stopping the distributor from dropping in. I did a little filing, not enough. If you look at the distributor, you can see where it is scratched from hitting the head

 

Last edited by mikeys1956; Aug 12, 2024 at 05:42 PM.
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Old Aug 12, 2024 | 05:40 PM
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i would do like tom stated install the pickup kit in the old dizzy, send that unit back as not fitting
 
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Old Aug 12, 2024 | 09:51 PM
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Was the block zero decked? Heads milled?
 
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