Piston question

[Mopar Sam]

My old homemade ring filing fixture. I made this several years ago from a couple of extra parallels from my seat and guide machine.

You measure your gap and figure how much you need to file and use 2 feeler gauges to set the small plate that you butt your ring against. Make sure the ring is square against the plate, and tighten the parallels to hold the ring.
then remove the small plate and file the ring until it is flush. This saves me a lot of time since you don't have to file and check over and over to get the right gap. File once check and done.

The parallels are doweled together. I have to true the filing surface on the belt sander after about 4 or 5 sets of rings.

 

[Dartfreak75]

My old homemade ring filing fixture. I made this several years ago from a couple of extra parallels from my seat and guide machine. View attachment 1715590294

You measure your gap and figure how much you need to file and use 2 feeler gauges to set the small plate that you butt your ring against. Make sure the ring is square against the plate, and tighten the parallels to hold the ring.
then remove the small plate and file the ring until it is flush. This saves me a lot of time since you don't have to file and check over and over to get the right gap. File once check and done.View attachment 1715590295 View attachment 1715590296 View attachment 1715590297 View attachment 1715590298 View attachment 1715590299

The parallels are doweled together. I have to true the filing surface on the belt sander after about 4 or 5 sets of rings.

That is really cool I like that alot! I love homemade tools that's some really good engineering right there! The idea I had in my head was to measure and subtract the difference then chuck the ring into a smooth jaw vice using a feeler gauge of the amount that I needed to remove to keep it straight and level and have a visual of how much I'm removing. Then file flat to the vice.

 

[18teener]

My old homemade ring filing fixture. I made this several years ago from a couple of extra parallels from my seat and guide machine. View attachment 1715590294

You measure your gap and figure how much you need to file and use 2 feeler gauges to set the small plate that you butt your ring against. Make sure the ring is square against the plate, and tighten the parallels to hold the ring.
then remove the small plate and file the ring until it is flush. This saves me a lot of time since you don't have to file and check over and over to get the right gap. File once check and done.View attachment 1715590295 View attachment 1715590296 View attachment 1715590297 View attachment 1715590298 View attachment 1715590299

The parallels are doweled together. I have to true the filing surface on the belt sander after about 4 or 5 sets of rings.

I registered a while back but haven't posted on here (apart from an intro) but I would like to say thanks for that idea. I made a jig up like Mopar Sam's and it made filing my KB rings a pleasure! Thanks Mopar Sam

 

[Mopar Sam]

I registered a while back but haven't posted on here (apart from an intro) but I would like to say thanks for that idea. I made a jig up like Mopar Sam's and it made filing my KB rings a pleasure! Thanks Mopar Sam

Glad to help!

I have to say, I have learned a lot from people on FABO over the years myself. Welcome to the site, and... what are you building?

 

[Dartfreak75]

Mine went in nicely.

 

[18teener]

Mopar Sam, I'm building a 318 powered Humber Hawk, an early 60's English car. Not an A body but this site is a great resource for LA motors and associated parts.

 

[Dartfreak75]

Mopar Sam, I'm building a 318 powered Humber Hawk, an early 60's English car. Not an A body but this site is a great resource for LA motors and associated parts.

You should start a tread I love engine builds especially 318s

 

[Mopar Sam]

Mopar Sam, I'm building a 318 powered Humber Hawk, an early 60's English car. Not an A body but this site is a great resource for LA motors and associated parts.

We like all Mopar powered cars here! My current build is a 1967 truck. You should start a build thread. I looked up Humber Hawk, and have to say I like them!