Back Plate O-Ring Seals YSS1017 for YS Engine  [YSS1017]

YS ENGINE BACK PLATE O-RING 50ST #S1017
Price:
AUD$6.84
Brand:
YS Engine
Model:
YSS1017
GTIN:
4560105739695
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Back plate sealing O-rings

YS Engine YSS1017 back plate O-rings are provided as service seals for RC YS engine back plate joints. These rings are intended as wear items to be renewed during engine teardown and reassembly when sealing surfaces show age or damage.

Fitting is simple: remove the back plate, inspect the groove for debris or scoring, swap the old O-ring for a new one from the set, and reassemble with clean mating faces. Follow the lubricant guidance in your engine manual to ease installation and lower the chance of damage.

Fresh seals preserve crankcase compression and help prevent fuel or oil leaks that can cause inconsistent running.

What is the recommended way to seat a new O-ring?

Clean the groove, lightly lubricate with a compatible grease or oil, and gently roll the O-ring into its groove rather than stretching it over edges to avoid cuts.

Which lubricants should I avoid when installing these rings?

Avoid solvents and chemicals that attack nitrile. Use only lubricants specified by the engine manufacturer or common compatible greases to prevent premature swelling or degradation.

How often should I replace the back plate O-rings?

Replace O-rings whenever you disassemble the back plate or if you observe fuel or oil seepage, hardening, or visible cracking. Regular inspection during tune-ups will reveal when renewal is needed.

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