Model A - Compression Test

[A TRUCK]

Hi everyone

Wanting to do a compression test on my Model A - my compression tester is not large enough to screw or seal up in the spark plug hole. Is there a special adapter to use or is there another method/tool to use?

Your input is much appreciated!

 

[fiddlybits]

Adapter

http://www.snydersantiqueauto.com/3799

 

[A TRUCK]

Many thanks @fiddlybits

 

[colin1928]

Or you can just knock the centre out of a old spark plug

 

[V4F]

i use the rubber tip compression gauge . works fine .

 

[BruceUpstate NY]

Wrap it with friction tape. Works for me. Lasts for years.