TEAC V-3000: replacing the idler tire — full walkthrough

STARTED BY THE BENCH · 9 REPLIES · LAST ACTIVITY 2 H AGO

Macro close-up of a cassette transport mechanism during idler tire replacement

The Bench OP · 43 YEARS

THREAD STARTER

The V-3000 came in last week with the classic symptom: reels spin, but take-up torque is uneven and the counter stutters. On this model it is almost never the belt — it is the idler tire gone shiny.

Steps I follow: strip the transport, mark the flywheel position, pop the idler assembly off the shaft (no solvent, it is a push-fit), clean the shaft with isopropyl, and fit a fresh NOS-spec tire — not the generic 8 mm ones sold everywhere, they are 0.3 mm too thick and the clutch slips.

After fitting, I measure take-up torque across the whole cassette at 3 speeds. Spec is met on this unit at every point, and the wow figure dropped from 0.09% to 0.04%. Full bench report goes in the box.

M. Keller

BERLIN · 5 DAYS AGO

Same failure on my V-1000 two years ago. The torque point is what nobody checks — thanks for publishing numbers, most walkthroughs stop at "replace the tire".

R. Tanaka

OSAKA · 3 DAYS AGO

Question: do you also dress the clutch felt, or leave it? Mine grips fine cold but the take-up torque sags after twenty minutes.

The Bench OP · 43 YEARS

THREAD STARTER

Torque sag after warm-up is nearly always the felt, yes. Clean it, re-dress the surface lightly, and re-measure hot. If it still sags, the clutch spring has taken a set — that is a whole other thread.

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