Replacement Exhaust Seal for GT22 Engines O.S. Engine OS28214400  [OS28214400]

O.S. ENGINES EXHASUT GASKET GT22
Price:
£4.23
Brand:
O.S. Engine
Model:
OS28214400
GTIN:
4531028152212
Condition:
Brand New
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Replacement Exhaust Seal for GT22

The O.S. Engine OS28214400 exhaust gasket is a replacement component specified for the GT22 exhaust joint, made to restore the sealing interface between the cylinder head and the muffler flange on glow model engines. It provides a quick remedy when exhaust seepage or poor idle points to a compromised seal.

Fitment is uncomplicated: remove the muffler, clean away old gasket material from both mating faces, seat the new gasket evenly over the exhaust port, and refit the muffler with the original hardware. Take care not to overtighten the flange fasteners to avoid deforming the gasket or the flange.

As part of maintenance and tuning, the gasket helps preserve exhaust pressure and prevents leaks that can upset idle and throttle response, so it is a useful spare for GT22 installations.

How can I tell if the exhaust gasket is the cause of idle problems?

Check for visible soot or exhaust staining at the flange and listen for hissing during idle; these signs often indicate the gasket is leaking and should be inspected or replaced.

Should I use sealant with the OS28214400 gasket?

Sealant is not normally required; a clean surface and correct seating provide the intended seal. Only use a high-temperature gasket compound if recommended for a specific muffler or head combination.

Is this gasket suitable for high-performance tuning setups?

Yes, maintaining a proper exhaust seal is important for stable mixture and throttle response in tuned engines, so replacing a worn gasket is advised when preparing a GT22 for performance use.

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