Get to the primary clutch
Let everything cool, then take the CVT cover off as your machine’s service manual describes.
Some Packard kits ship with four cam arms (clutch weights) for a six-position primary clutch. They go in as two opposite pairs, and the last pair stays empty. Here’s the layout, why it has to be that way, and how to swap arms without throwing the clutch out of balance.

El layout
Arms go where the yellow arrows point. The two positions with the red no symbol stay empty.
Toca una posición para ver su pareja en el clutch.
Por qué pares
The primary clutch turns as fast as the engine does. Weight on one side with nothing across from it is an imbalance at every one of those revolutions. Pairs keep it balanced: an arm across from an arm, an empty slot across from an empty slot.
Los brazos son los pesos voladores del clutch: a medida que el clutch gira, se extienden y aprietan la banda. Menos peso total de brazo significa que el motor tiene que girar más alto antes de que el clutch cambie, y así es como se configura un CVT para mantener el rpm que un turbo más grande quiere.
El intercambio
Maréalos según avanzas; esta página recuerda dónde estás en este dispositivo.
Let everything cool, then take the CVT cover off as your machine’s service manual describes.
Before you touch anything, take a photo of the clutch and note what sits in each position. It’s your map back if anything gets mixed up.
Cada brazo viaja sobre un pasador sujeto por un tornillo, con arandelas en ambos lados. Trabaja una posición a la vez y mantén las arandelas de cada brazo en el orden en que salieron; un imán ayuda a sacar el brazo y las piezas pequeñas.
Pon los brazos donde apuntan las flechas amarillas en el layout: posiciones 1, 2, 4 and 5. That’s two pairs, each arm directly across from its twin.
Positions 3 y 6, marked with the red no symbol, stay empty: no arm, no weight.
Apretar la tuerca de cada pasador hasta que el pasador esté ajustado, luego revisa el brazo a mano. Tiene que balancearse libremente en su pasador. Un brazo que se atasca no se moverá cuando el clutch gire.
Go around the clutch once more. Every arm has another arm directly across from it, and every empty position has an empty position across from it. If anything doesn’t pair up, fix it before the cover goes on.
Reinstall the CVT cover and test drive. Watch the rpm against your tune’s target; on the Packard Can-Am big turbo that’s 8,500 with stock cams and 9,200 with Packard cams.
Ver
Del canal técnico de Packard.
Preguntas
Less arm weight lets the engine rev higher before the clutch shifts. Four arms, set as two opposite pairs, keep the clutch balanced while taking weight out.
The ones the yellow arrows point to in the layout: 1, 2, 4 and 5 in our diagram. Positions 3 and 6, marked with the red no symbol, stay empty.
No. They go in two pairs, each arm directly across from another arm. Any other layout puts the clutch out of balance.
Snug. The arm has to swing freely on its pin, so check each one by hand after you tighten it.
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