An industrial drier can be used to heat the engine crankcase to facilitate inserting the bearings.
TKART Staff
05 June 2017
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THE SILENCER GREATLY AFFECTS THE PERFORMANCE OF THE ENGINE.
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Reply by
ALESSIO PICCINI
Alessio Piccini, Tony Kart Racing Team driver
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"Very true: the silencer plays a decisive role in terms of engine performance. Mounting the right, good quality silencer means being able to make the best use of the engine’s power at the various engine speeds".
AN INDUSTRIAL DRIER CAN BE USED TO HEAT THE ENGINE CRANKCASE TO FACILITATE INSERTING THE BEARINGS.
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Reply by
ALESSANDRO MARRAPESE
Alessandro Marrapese, owner of the Marra61 team, team manager, engineer and telemetry expert... A true "jack of all trades" in karting.
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When warmedup, the crankcase seat expands and facilitates the insertion of the bearings. The task takes about five minutes for each side of the crankcase. We recommend you keep an eye on the time to ensure the surfaces of the seats are heated evenly. The same trick can be used when removing the bearings to avoid damaging the crankcase seat during their replacement.
IF THE ENGINE IS MADE TO RUN RICHER THERE IS A RISK OF BREAKING THE REED VALVES
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Reply by
RENATO MERLIN
Renato Merlin is one of the best known and experienced tuners in the world of high-level karting.
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"This is not true! Ayrton Senna taught the world about running richer and I fully support it. If the blades are goodquality, they will notbreak. While it is true that when making an engine run richer there is a greater chance of the reed valves breaking, it depends on otherreasons, starting with how they were manufactured. Reed valves are made of carbon fibre and resin: the quality varies depending on the quantity of the two elements and the manufacturing process. You only need a micrometer to measure the thickness and, therefore, the durability of a reed valve. Over the years, I have had blades that lasted for a whole season and others that lasted a few minutes. It all depends on the quality of the reed valve and making an engine run richer has nothingto do with it: there’s a better chance of the reed valves breaking, but it is not the cause".
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