REMARKS :
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- steel billet camshafts
- supplied with adjustable chain sprockets on the exhaust cam to optimize intake cam timing
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mechanic 20v / 30v kit includes:
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intake: tappets (ref. CC016), single springs (ref. 902-0013) on OEM upper retainer; 3/cyl each
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exhaust: tappets (ref.CC019), double springs (ref. 902-2009) on OEM upper retainer or on aluminum retainer (ref. 99357); 2/cyl each
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- valve clearance is to be adjusted using mechanical lash caps
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please make sure that the lash cap does not touch the valve locks !
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FOR COMPETITION APPLICATIONS ONLY. Following details must be verified:
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the camshafs must turn smooth in the cylinderhead, provide free travel by machining where needed
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distance between valve seal and retainer at full lift must be 0.6mm at least
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minimum valve spring travel of 1.0mm at full lift must be provided
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distance between valve and piston 1.0mm (pref. 1.5mm). check 5-15° before TDC on exhaust, and after TDC on intake
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ONLY for dirt track applications and pro street use with adjustable engine management or carburettors