The Ford Barn

cederholm · 01-26-2023, 09:07 AM

I need an adapter for my compression tester to fit the larger sparkplug holes. Can any one tell me the specs that I need to look for?

A google search provide the wrong spec and I ended up buying one the doesn't fit. ...should have asked you guys first.

Thanks!

Y-Blockhead · 01-26-2023, 09:13 AM

Snyders has a spark plug adapter that I use with my Snap-On compression tester. https://www.snydersantiqueauto.com/s...ht=a-12405-adp But like numerous things these days, I see they are "Temporarily Out of stock".

ArtimusGordon · 01-26-2023, 09:34 AM

I punch out the porcelain center of an OLD spark plug. I us a compression tester with a rubber tip.

alexiskai · 01-26-2023, 09:42 AM

Bert's claims to have them.
https://modelastore.com/index.php?ro...oduct_id=12635

cederholm · 01-26-2023, 10:08 AM

Good idea - if I had an old sparkplug. I'll keep that in mind.

Quote:

Originally Posted by ArtimusGordon

I punch out the porcelain center of an OLD spark plug. I us a compression tester with a rubber tip.

cederholm · 01-26-2023, 10:08 AM

Sponsored Links (Register now to hide all advertisements)

Thanks all - but does anyone know the size/thread of the hole?

katy · 01-26-2023, 10:18 AM

7/8"-18

01-26-2023, 09:07 AM	#1
cederholm Senior Member Join Date: Jun 2017 Location: Southport CT Posts: 318	Spark plug adapter I need an adapter for my compression tester to fit the larger sparkplug holes. Can any one tell me the specs that I need to look for? A google search provide the wrong spec and I ended up buying one the doesn't fit. ...should have asked you guys first. Thanks!

01-26-2023, 09:13 AM	#2
Y-Blockhead Senior Member Join Date: Jul 2011 Location: Redondo Beach, CA Posts: 7,288	Re: Spark plug adapter Snyders has a spark plug adapter that I use with my Snap-On compression tester. https://www.snydersantiqueauto.com/s...ht=a-12405-adp But like numerous things these days, I see they are "Temporarily Out of stock".

01-26-2023, 09:34 AM	#3
ArtimusGordon Member Join Date: Dec 2016 Location: Grants Pass, Oregon Posts: 93	Re: Spark plug adapter I punch out the porcelain center of an OLD spark plug. I us a compression tester with a rubber tip.

01-26-2023, 09:42 AM	#4
alexiskai Senior Member Join Date: Apr 2018 Location: Mebane NC Posts: 3,176	Re: Spark plug adapter Bert's claims to have them. https://modelastore.com/index.php?ro...oduct_id=12635

01-26-2023, 10:08 AM	#6
cederholm Senior Member Join Date: Jun 2017 Location: Southport CT Posts: 318	Re: Spark plug adapter Sponsored Links (Register now to hide all advertisements) Thanks all - but does anyone know the size/thread of the hole?

01-26-2023, 10:18 AM	#7
katy Senior Member Join Date: Jun 2015 Location: Red Deer, Alberta Posts: 6,071	Re: Spark plug adapter 7/8"-18 __________________ If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn!