Piston circlip

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Robert McKittrick
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Posts: 5
Joined: Wed Aug 08, 2012 4:02 pm

Piston circlip

#1 Post by Robert McKittrick » Fri Feb 08, 2019 4:30 pm

Piston circlip.

Rebuilding the engine in my 1965 356C. Although parts vendors list them, their photos show the spring wire type, not the retaining ring type (as are currently in my engine) with two holes. This type utilizes a retaining ring plier to remove and install.

Seeking info on the retaining ring type with the two holes:

Size?

Part number?

Source(s)

Thanks

Bob

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Harlan Halsey
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Location: No Cal SF Peninsula

Re: Piston circlip

#2 Post by Harlan Halsey » Sat Feb 09, 2019 6:26 am

356 Pistons always used the spring wire. (with a relief so you could get it out) They are superior to the two hole circlips used elsewhere from a wrist bin retaining and pin removal point of view. (The chamfered end of the wrist pin pushes the ring down into the groove.) The groove shape is different too. Circlips go in sharp edge out. I wonder what type of retainers the modern aftermarket pistons use?

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Vic Skirmants
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Location: SE Michigan

Re: Piston circlip

#3 Post by Vic Skirmants » Sat Feb 09, 2019 8:39 am

Robert; welcome to the Forum. Harlan's advice is perfect.
Last edited by Vic Skirmants on Mon Feb 11, 2019 8:57 am, edited 1 time in total.

Robert McKittrick
356 Fan
Posts: 5
Joined: Wed Aug 08, 2012 4:02 pm

Re: Piston circlip

#4 Post by Robert McKittrick » Mon Feb 11, 2019 8:25 am

Thanks for the answers and recommendations. Someone has been in before me to I am taking my time analyzing, measuring, identifying, and documenting.

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