Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 01-26-2020, 07:52 AM   #1
russcc
Senior Member
 
Join Date: May 2010
Posts: 2,188
Default 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.
russcc is offline   Reply With Quote
Old 01-26-2020, 07:55 AM   #2
chap52
Senior Member
 
chap52's Avatar
 
Join Date: Jun 2013
Location: Marana Arizona
Posts: 1,556
Default Re: Foil balls for clearance

I put a dab of grease on the ball before placing it on the piston... Chap
chap52 is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 01-26-2020, 09:24 PM   #3
37fatfender
Senior Member
 
37fatfender's Avatar
 
Join Date: May 2010
Location: Mesquite, NV / Gurnee, IL
Posts: 252
Default 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.
37fatfender is offline   Reply With Quote
Old 01-26-2020, 10:11 PM   #4
1948F-1Pickup
Senior Member
 
1948F-1Pickup's Avatar
 
Join Date: Oct 2015
Location: Socal
Posts: 344
Default Re: Foil balls for clearance

Play-doh.....
1948F-1Pickup is offline   Reply With Quote
Old 01-27-2020, 10:07 AM   #5
russcc
Senior Member
 
Join Date: May 2010
Posts: 2,188
Default 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.
russcc is offline   Reply With Quote
Old 01-27-2020, 01:10 PM   #6
Russ/40
Senior Member
 
Russ/40's Avatar
 
Join Date: May 2010
Location: Santee, California
Posts: 3,108
Default Re: Foil balls for clearance

I have complete confidence in the use of clay. I use Fimo craft clay that is plastic based material. I prefer it because you will not have the problem of the crushed material falling off when the head is removed. It's a real pain to have ten stick and two fall off and have to repeat the process. JMHO
Russ/40 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 11:21 AM.