Pelican Parts Forums - stomski wrist pin insert tool

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- - stomski wrist pin insert tool (http://forums.pelicanparts.com/911-engine-rebuilding-forum/964102-stomski-wrist-pin-insert-tool.html)

I bent, yea bent, a JE circlip trying to install it without a tool. I had two go flying at warp speed, with one still MIA. None were permanently deformed or sent flying using my home made tool.

Quote:

Originally Posted by 47silver (Post 9672907)

hi
i want to buy the stomski tool from our host but there are 2 sizes listed
one is for 22mm and the other is for 23 mm
i have a 911T 2.4 1972 T motor that i will be using it on,,the pins are not at my house so i cannot measure them so should i use a 22 or 23 mm tool?

I have one of the 22mm tools that I will be happy to loan to you at no charge. Send me a PM with your address and I will mail it to you.

Quote:

Originally Posted by 47silver (Post 9672912)

80000 miles on the motor.
Took it apart and am amazed that the crank and intermediate shaft bearing surfaces, look brand new and the crank is perfect.

I was planning on putting it back together with new studs and bearings but that fear of the twisted case is in the back of my mind.
Queston: should i get it align bored. the cost does not bother me i just do not want to mess up the geometry of the case and worry that the next time the case is apart there is not much that can be done.
any suggestions?

I would recommend having the case resized back to standard [1] but you could try putting the crank back in a torquing the case bolts down and seeing if the crank turns freely. If it doesn't you'll know for sure that you need to resize the case.

[1] resizing the case is a process where a little bit of material is removed from each side of the case and then the crank and intermediate shaft bores are recut. This allow you to use standard bearings instead of oversize bearings which cost 3X what standard bearings cost.