GT55 Piston OS29703200 — O.S. Engine Replacement for RC Glow Engines  [OS29703200]

O.S. ENGINES PISTON GT55
Price:
NZD$62.35
Brand:
O.S. Engine
Model:
OS29703200
GTIN:
4531028145757
Please kindly input your name and email address, we will inform you once we have the restocking.
Write a review
alt="O.S. ENGINES PISTON GT55" title="O.S. ENGINES PISTON GT55"
alt="O.S. ENGINES PISTON GT55" title="O.S. ENGINES PISTON GT55"

GT55 piston description and purpose

The O.S. Engine GT55 piston is designed for use in compatible O.S. Engine glow units. This entry focuses on the piston’s role in maintenance and tuning rather than cataloguing physical measurements or broad compatibility claims.

Operational role: a piston like the GT55 establishes compression and seals the combustion chamber; replacing a worn piston is a key step when rebuilding an engine. Prior to fitting, inspect the piston skirt and crown for damage, clean mating surfaces, and ensure the cylinder and connecting hardware are serviceable.

Handling and break-in: the piston should slide in the bore with controlled clearance. Hobbyists often perform gentle honing and a measured run-in to seat rings and improve sealing. Use appropriate lubricants and adhere to the engine manufacturer’s break-in recommendations to avoid early wear.

Tuning considerations: piston condition affects compression stability and combustion quality, which impacts idle behavior, throttle response, and peak power. A fresh GT55 piston can help restore consistent tuning across different fuels and operating temperatures.

Specifications

  • Item: Piston GT55
  • Material: Not specified by manufacturer
  • Model Number: OS29703200
  • Compatibility: Compatible with O.S. Engine RC glow engines, confirm exact fitment with your engine model

Install this piston only after verifying fitment for your engine model, and follow established rebuild and run-in methods to secure reliable performance.

What indicators show a piston needs replacement?

Look for loss of compression, visible scoring on the skirt or crown, increased smoke or oil consumption, and inconsistent running—these signs commonly point to piston wear.

How should I perform the initial run-in with a new piston?

Start with conservative needle settings, run the engine gently for short periods while monitoring temperature and compression, then gradually increase load and adjust mixture as the rings seat.

Does the manufacturer provide material details for this piston?

The material is not specified by the manufacturer in available parts information; focus on confirming fitment and following recommended service intervals instead.

How often should I inspect the piston during regular service?

Inspect the piston each time you disassemble the engine for cleaning or after a known overheat or contamination event; routine checks during rebuilds help prevent unexpected failures.

Copyright © 2008-2026 rcjaz.co.nz All rights reserved