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HomeClassifiedAircraftHelicopterClassifieds - Engines & Mufflers Void  Parts bonanza for YS 91SR-3DS
11-11-2013 02:43 AM  4 years agoPost 1
ticedoff8

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Morgan Hill, CA. USA

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Cleansing out the garage.

Many parts for YS 91SR-3DS.

Three main bearings
There is one new main bearing (NIP).
There are 2 that are still okay, but used. The used main bearings are not "crunchy" or loose. They were swapped out as part of normal maintenance and may still be quite good. But, one was changed after a piston melt-down as a precaution.

The crankcase has a broken muffler / pipe mounting boss. It snapped off in a crash. I do not know if it is repairable (see pictures). Other than this, the crankcase is perfect.

Head and shim. The head has a "shot-peen" look on the combustion surface. It is not deep - it is more like a discoloration than abrasion. The head was in use up until the heli crashed and broke the crankcase.

There is a complete piston, ring, wrist pin, clips, con rod and sleeve.
This is in good shape and can be used as is.
Although the sleeve is not "new", it is not scratched, gauged and only has minor wear. The ring measures 0.043" (new is about 0.044".

Three rings. These measure between 0.042 and 0.043. These were swapped out as normal maintenance and my be useable in a pinch.

One piston that has scoring on one side after a lean run. If you wanted too, you could clean up the abrasions with a file and reuse this piston with a ring.

Two 91SR style backplates. These backplates can be used on 91SR and 91SR-3DS. One has the pressure tap. These backplates do not have the steel plate on the inside.

One Hatori SB-19 header - no pipe, just the header.

One "high speed needle" for the YS 91SR-3DS carb. New In Package with O-ring.

Asking $100 shipped (to NA) and Paypal.

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11-11-2013 04:06 PM  4 years agoPost 2
ticedoff8

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Morgan Hill, CA. USA

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TTT

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11-13-2013 04:17 AM  4 years agoPost 3
Timbers

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Wisconsin

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hi
Would you break it up? I have a crankcase that a bearing grenade in and took out everything.

I need a head, piston, sleeve, ring, conrod.

If not, wait awhile and let me know. I seriously have to take the engine out of my trashcan if you end up parting it out for me hah

...Tim

You fly RC helicopters? Can I have a ride?

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