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01-26-2020, 07:52 AM | #1 |
Senior Member
Join Date: May 2010
Posts: 2,871
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Foil balls for clearance
I have clayed the heads, (Navarro), on the 59L to get an idea of the clearance w/out the gasket. Now I plan to use foil balls to measure piston & valve clearance so I can measure it with a mike. How do you stick or keep the foil ball in place on the head, pistons or valves. Thank you Fordbarners.
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01-26-2020, 07:55 AM | #2 |
Senior Member
Join Date: Jun 2013
Location: Marana Arizona
Posts: 1,776
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Re: Foil balls for clearance
I put a dab of grease on the ball before placing it on the piston... Chap
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01-26-2020, 09:24 PM | #3 |
Senior Member
Join Date: May 2010
Location: Mesquite, NV / Gurnee, IL
Posts: 298
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Re: Foil balls for clearance
Learned this from a Bonneville racer. Try using a small marble size ball of Bondo. Let set and harden. Slice the pancake in half, the cross section is your exact clearance. I’ve done it a few times.
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01-26-2020, 10:11 PM | #4 |
Senior Member
Join Date: Oct 2015
Location: Socal
Posts: 795
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Re: Foil balls for clearance
Play-doh.....
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01-27-2020, 10:07 AM | #5 |
Senior Member
Join Date: May 2010
Posts: 2,871
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Re: Foil balls for clearance
If I got this right, the purpose of the foil balls is you can measure them with a mike after they are removed to get the actual clearance between parts. The clay gives you and indication only, and is more difficult to measure accurately.
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01-27-2020, 01:10 PM | #6 |
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Join Date: May 2010
Location: Santee, California
Posts: 3,505
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Re: Foil balls for clearance
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