GT22 Muffler Flange Seal - O.S. Engine OS28214400  [OS28214400]

O.S. ENGINES EXHASUT GASKET GT22
Price:
AUD$8.16
Brand:
O.S. Engine
Model:
OS28214400
GTIN:
4531028152212
Condition:
Brand New
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GT22 Muffler Flange Seal

This O.S. Engine OS28214400 gasket is supplied as a direct replacement for the GT22 exhaust flange, intended to reestablish the seal between the cylinder head and the muffler on glow-powered RC engines. It is a simple service part to address exhaust leaks and unstable idle caused by a failing seal.

To install: remove the muffler, clean both flange faces to remove residue, set the gasket squarely on the exhaust port, and refit using the original fasteners. Tighten progressively and avoid heavy torque to prevent crushing the gasket or warping the flange.

In regular maintenance the gasket helps keep exhaust back-pressure consistent and reduces leaks that can alter idle and throttle response, making it a handy spare for GT22-equipped models during track or field days.

What torque should I use on muffler bolts?

Use a light, even torque sufficient to compress the gasket but not distort the flange; hand-tighten then a small fraction further with a torque driver if exact values are required.

Is the gasket reusable after one removal?

Generally a new gasket is recommended after removal. If the original still shows full thickness and no damage it can be refitted once, but replacement ensures reliable sealing.

Does the gasket influence engine tuning settings?

Yes; by preventing intake of extra air or loss of pressure at the exhaust joint, a sound gasket helps maintain set tuning and idle stability.

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