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HelicopterEngines Plugs Mufflers Fuel › Piston pin retainers
10-17-2017 09:45 PM  6 months agoPost 1
datidun

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N Ireland

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Just wondering how often do you guys change the pins on your engines.

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10-17-2017 10:17 PM  6 months agoPost 2
EEngineer

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TX

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When you change the connecting rod....

And also change the wrist pin retaining clip.

Logo 600SXs, 800XX, TDR IIs

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10-19-2017 12:36 PM  6 months agoPost 3
datidun

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N Ireland

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Thought maybe every 2nd year.

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10-19-2017 12:54 PM  6 months agoPost 4
EEngineer

rrProfessor

TX

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There is no set date.

Logo 600SXs, 800XX, TDR IIs

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10-19-2017 06:22 PM  6 months agoPost 5
Dawiev

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Middle East

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Unless you have another reason to open the engine, I would certainly not do it just to replace them.

Never reuse them.

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10-22-2017 08:26 PM  5 months agoPost 6
Richardmid1

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Leeds, England

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After a very long time! Change the clips if you are changing the piston though. The conrod will wear first but even then mostly at the crank end. I once bought a conrod for my 105 as I was replacing the piston and thought I might aswell as I had it apart but the new one had no less play than the old one so I never put the new one in!

60% of the time, it works every time!

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10-23-2017 12:15 AM  5 months agoPost 7
wjvail

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Meridian, Mississippi

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Piston pin retainers
Never - unless there is some overriding reason to. i.e. one slips out of my needle nose pliers and shoots across the room, gets tweaked (however slightly) while being removing or inserting, becomes corroded etc. Helicopter motors do not see sufficient stress to warrant changing gudgeon retaining clips on an interval.

Bill

"Well, Nothing bad can happen now."

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HelicopterEngines Plugs Mufflers Fuel › Piston pin retainers
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