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-   -   How to Remove Piston Pin Snap Ring on a 3.6 (http://forums.pelicanparts.com/911-engine-rebuilding-forum/664917-how-remove-piston-pin-snap-ring-3-6-a.html)

earossi 03-11-2012 04:53 PM

How to Remove Piston Pin Snap Ring on a 3.6
 
What is the easiest way to remove one of the snap rings that hold the piston pins in place on a 3.6 motor. I have tried using a small screwdriver to get under the end tab of the clip, but it doesn't seem to work. So far this is the toughest fastener I've encountered on this motor!! There has to be a trick to getting them out.

tom1394racing 03-12-2012 03:09 AM

I use a dental pic to remove these.

Use the pic in one hand to get behind the snap ring. Then pry the clip out while guiding the clip with a finger on your other hand to keep it from escaping.

earossi 03-12-2012 10:32 AM

Got it! Thought I owned one of every tool made, but did not have any dental picks in my collection. A quick trip to Sears, and the first snap ring came out with about a 5 minute learning curve on my part.

Seeing how much force was required to remove them, the bigger issue is going to be re-inserting them when I am all done. Any ideas?

cstreit 03-12-2012 11:33 AM

A pin insertion tool is worth it's weight in cold. I'm stubborn and haven't bought one. I wrap duct tape around my thumb so it doesn't hurt so much when you push it in, lol. Thing is, all you have to do is lose one when it goes SPROING! tring to get it in, then wait a week for it to arrive in your order, then the tool makes more sense.

Be SURE when you go to replace them that you put something in the cylinder bores in the case so if/when it does shoot out of there, that it doesn't go inside your newly assembled case.

prschmn 03-17-2012 12:00 PM

http://forums.pelicanparts.com/uploa...1332014357.jpg


Heres a handy way to install em. And if you think those are awkward don't even think about a 996 install-then again don't think about them at all.

PFM 03-18-2012 10:29 AM

Earossi,

When I got this tool it was a happy day, I showed it to a pro engine builder friend who promptly ordered a set. I still like the plastic wrap to keep a flying clip from flying where you do not want it.


Stomski Racing Circlip Injector - YouTube


Stomski Racing Circlip Injector

billjam 03-19-2012 06:28 AM

That Stomski tool is neat and simple.
Here's how I do it with a tool I made from an old 4mm allen key ...

http://forums.pelicanparts.com/uploa...1332167160.jpg

http://forums.pelicanparts.com/uploa...1332167197.jpg

john walker's workshop 03-20-2012 09:08 AM

those thick rings are near impossible to get in with your fingers, unlike the earlier ones. i made a tool out of a 911 cigarette lighter outer shell and a deep socket that fit well inside.

r-mm 02-06-2020 11:43 AM

Bumping an ancient (yet timeless) threat. I have a few sets of nice quality picks but fear I am damaging the half round recess as I pry. Can anyone describe the technique they used?

The headstuds are really in the way...

They need to come out on my car and suppose I could remove them first but wanted the pistons out of the way so I can use heat on the case without worrying about hitting the pistons.

Flat6pac 02-06-2020 12:15 PM

I don’t install the bottom studs until I have all snap rings and cylinders in place.
Bruce

r-mm 02-06-2020 12:16 PM

That is a good idea especially since I am using supertec studs which appear to be much easier to install.

mikedsilva 02-07-2020 03:40 AM

Quote:

Originally Posted by Flat6pac (Post 10743974)
I don’t install the bottom studs until I have all snap rings and cylinders in place.
Bruce

I've never thought to do this... Bruce, you are always teaching me!


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