The Ford Barn

glenn in camino · 01-04-2018, 08:23 PM

I'm putting the wrist pins in the pistons, The original clips fit fine and are easy to install and remove. The new spring clips are pretty much impossible. I bought a new spring clip tool that's labeled external, but I'm not having any luck with it. Do I have the right tool, or should I get an internal. Also, are the originals ok to use? If not, why not?

Mikeinnj · 01-04-2018, 09:10 PM

This might help you.....Mike

https://www.fordbarn.com/forum/showthread.php?t=42737

Purdy Swoft · 01-04-2018, 10:53 PM

If you are using original Ford pistons that are split all the way down the side , you will have to use the original center lock pins and locks. The original center lock pins have a central lock groove and are a different length . The original center lock pistons don't have side grooves for the side lock clips . The original replacement pistons that the model A venders sell are all side lock style

Kurt in NJ · 01-04-2018, 11:01 PM

The design of the spring clip has to match the groove
post pictures

100IH · 01-05-2018, 12:11 PM

Before anyone can answer your post, you'll have to describe where are the spring clips: at the ends of the pin or in the center. I believe that all modern replacement pistons use end clips since WWII. Those clips fit in the pin bore and press out to hold in place. This requires an INTERNAL circlip pliers.

Purdy Swoft · 01-05-2018, 03:06 PM

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It sounds like Glen is trying or wanting to use both style pin clips. It is simply not possible to use center clips with the later styly piston pins. Later style piston pins don't have the center groove for the early center clips. I've never heard of center clip pliers . Both style pins are full floating . No model A style piston pins are press fit. There is a special tool used for the early center clip style pins . If a person doesn't have the special center clip tool the early style pins can be driven out with a slightly smaller deep wall socket.

01-04-2018, 08:23 PM	#1
glenn in camino Senior Member Join Date: May 2010 Location: Camino, CA. Posts: 3,086	wrist pins I'm putting the wrist pins in the pistons, The original clips fit fine and are easy to install and remove. The new spring clips are pretty much impossible. I bought a new spring clip tool that's labeled external, but I'm not having any luck with it. Do I have the right tool, or should I get an internal. Also, are the originals ok to use? If not, why not?

01-04-2018, 09:10 PM	#2
Mikeinnj Senior Member Join Date: May 2010 Location: Northern New Jersey Posts: 1,262	Re: wrist pins This might help you.....Mike https://www.fordbarn.com/forum/showthread.php?t=42737

01-04-2018, 10:53 PM	#3
Purdy Swoft Senior Member Join Date: May 2010 Location: Alabama Posts: 8,099	Re: wrist pins If you are using original Ford pistons that are split all the way down the side , you will have to use the original center lock pins and locks. The original center lock pins have a central lock groove and are a different length . The original center lock pistons don't have side grooves for the side lock clips . The original replacement pistons that the model A venders sell are all side lock style

01-04-2018, 11:01 PM	#4
Kurt in NJ Senior Member Join Date: May 2010 Location: on the Littlefield Posts: 6,159	Re: wrist pins The design of the spring clip has to match the groove post pictures

01-05-2018, 12:11 PM	#5
100IH Senior Member Join Date: Dec 2011 Location: SW Idaho Posts: 970	Re: wrist pins Before anyone can answer your post, you'll have to describe where are the spring clips: at the ends of the pin or in the center. I believe that all modern replacement pistons use end clips since WWII. Those clips fit in the pin bore and press out to hold in place. This requires an INTERNAL circlip pliers.

01-05-2018, 03:06 PM	#6
Purdy Swoft Senior Member Join Date: May 2010 Location: Alabama Posts: 8,099	Re: wrist pins Sponsored Links (Register now to hide all advertisements) It sounds like Glen is trying or wanting to use both style pin clips. It is simply not possible to use center clips with the later styly piston pins. Later style piston pins don't have the center groove for the early center clips. I've never heard of center clip pliers . Both style pins are full floating . No model A style piston pins are press fit. There is a special tool used for the early center clip style pins . If a person doesn't have the special center clip tool the early style pins can be driven out with a slightly smaller deep wall socket.