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PULLEY SET CRANK TR2-4A ALLY THIN BELT

RTR Upgrade
Part No:
RTR1208K
Price
£98.75
Price Ex VAT @ 20%
£82.29

IN STOCK This part is immediately available

Main

TR2-4A Thin belt alloy crank pulley set. Part of thin belt set RTR1210K and alternator conversion RTR8130. See Section 8 for details.

A word about Harmonic dampers versus solid machined crank pullets
We don t usually use Harmonic dampers on the crank. If one is fitted to an engine we are working on and it is not giving problems we will leave it there.
I have raced my TR2 for over 30 years with a standard type crank without a rubber mounted pulley. I recon I have done 200,000 miles in the car a lot of which would be racing, hill climbs, sprints, rallies as well as fast road work and I haven t had a problem yet. The issue as I see it is that engine manufacturers go to a lot of trouble to design a harmonic balancer when an engine is designed to get rid of unwanted harmonics. Here is the clue; harmonics are frequency dependent so the damper has to eliminate specific frequencies. Obviously not all engines produce the same harmonics and therefor one damper does not fit all. In fact you could put a damper on and introduce unwanted harmonics! Who knows what if anything is right for a TR? I certainly don t, so I leave them alone.
Neil Revington

Engine, Transmission, wheels/Tyres and Heating/Cooling

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