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spark plug gap

1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

spark plug gap

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Old

Nov 16, 2015 | 11:14 AM

#1

Deborah Bauderer

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Joined: Nov 2015

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spark plug gap

72 F250, stock. Autolite powertip BF32. Sat for a few years, regaping plugs to try and start. Also have my Marvel Mystery oil to squirt in. Whats the gap?

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Old

Nov 16, 2015 | 11:21 AM

#2

HIO Silver

Fleet Owner

Joined: Dec 2009

Posts: 20,678

Likes: 82

From: NorCal

.034 inch typically.... what engine specifically?

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Old

Nov 16, 2015 | 07:43 PM

#3

Tedster9

Post Fiend

Joined: Apr 2002

Posts: 19,311

Likes: 97

From: Waterloo, Iowa

Welcome to FTE

Yep, standard factory gap will work fine.

"Snake oils" are never part of my tool box but MMO is good stuff, it ain't snake oil. When you pull all the plugs for gapping, see that the engine turns over freely a couple times by hand, too.

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Old

Nov 16, 2015 | 08:19 PM

#4

351Cleveland C4

Lead Driver

Joined: Jul 2011

Posts: 8,678

Likes: 191

From: On the Edge of the Desert

Depends on a few things, assuming all stock, .035 is fine.

Get yourself a service manual....

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