After my last excursion to my local dealer to get a part number for an oil seal, I dare not venture back to ask anything harder. I am about to replace timing belft on my 97 rvr hsg so have not yet removed plastic timing covers, and therefore not sure which particular hydraulic tensioner I have. Not sure if it is same as evo 1-3 as some parts are the same and some are not! Does anyone know the correct part number for the hydraulic tensioner only, and would they advise replacing this unit even if the existing hydraulic tensioner looks ok on its removal. I not interested in replacing bent valves cheers