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Old 11-30-2019, 10:22 AM   #21
AllenV
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Default Re: '55 F100 new project, new member

Well, I am destined to find out, and add my own Pertronix anecdote in time.

On another topic: As I was changing spark plugs yesterday I found that cylinders 1,2, and 7 have had threaded inserts installed. See photos. remarkable in that the plugs with inserts sit substantially further out than the unmolested plugs. How common is this? Should I be concerned? shopping for heads?

The motor seemed to run well when I bought it. Though the choke was stuck full on during the test drive. That was due to a broken choke cable housing, since replaced. As such I have so far only experienced a very fast idle with full choke and a broken vacuum diaphragm on the distributor . I am expecting a much more civilized experience when I get the new distributor installed and timed. Thus I ask the collected expertise if having 3-of-8 plugs "helicoiled" might be a cause of rough or uneven idling.
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File Type: jpg Plugs.jpg (48.4 KB, 12 views)
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'55 F100 with slightly newer 292 Y-block
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Old 11-30-2019, 11:47 AM   #22
dmsfrr
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Default Re: '55 F100 new project, new member

Those look like anti-fouling inserts, to help keep oil off the sparkplug tips.
.

Last edited by dmsfrr; 11-30-2019 at 12:41 PM.
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Old 11-30-2019, 12:45 PM   #23
AllenV
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Default Re: '55 F100 new project, new member

That is a new one for me. Didn't know of such things. I'll leave 'em for now. See how it runs and get through the compression and leak-down tests.

Thanks again
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Old 12-01-2019, 04:44 AM   #24
KULTULZ
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Post Re: '55 F100 new project, new member

Used to control poor cylinder oil control - fouled spark plug.
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UPDATE - The doctor said I will walk again but most likely with a limp ...

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