Cat Cams camshaft Renault R5 Alpine 840.725

For the naturally aspirated Renault R5 Alpine 840.725 engine, type R-1223. Manufacturer dimensions: total length 455 mm including water pump drive, double chain, journal diameters 37.94 / 37.94 / 37.94 / 34.48 mm. The offered profiles are documented for this naturally aspirated engine.

Profile B : Manufacturer setup to check: followers original, springs original, upper retainers original.

Profile C : Manufacturer setup to check: followers original, springs specific, upper retainers original, cam wheels specific. Competition applications only. Independent engine management with a throttle position sensor or carburettors is required.

Profile D : Manufacturer setup to check: followers original, springs specific, upper retainers original, cam wheels specific. Competition applications only. Independent engine management with a throttle position sensor or carburettors is required.

Profile E : Manufacturer setup to check: followers original, springs specific, upper retainers original, cam wheels specific. Competition applications only. Independent engine management with a throttle position sensor or carburettors is required.

camshafts must turn freely in the head, with machining where necessary; at least 0.6 mm between valve seal and retainer at full lift; at least 1 mm of remaining spring travel; at least 1 mm valve to piston clearance, preferably 1.5 mm. Check 5 to 15° before TDC on the exhaust and after TDC on the intake.

Associated valve train components are not stated as included with the camshaft.

The figures and restrictions below are provided by the manufacturer. A professional must install and time the camshafts after checking the valve train, clearances, springs and engine management compatibility. Performance preparation part, with no claimed power gain or road approval. Manufacturer information for original springs and components does not replace mechanical checks. Image for reference only; no additional accessories are specified.