1969 Plymouth Roadrunner

[BLACK CAT]

dal sito Comp Cams :





Camshaft Break-in Procedure

Important:On hydraulic and mechanical (solid) flat tappet cams that require dual valve springs, the

inner spring must be removed during break-in. This allows the lifters to establish rotation and

develop a good wear pattern. As soon as the engine fires, bring the RPM up to 2000 to 2500 during the

first 30 minutes of operation. Slower engine speeds will not supply the camshaft with an adequate

amount of oil for the break-in period. The engine RPM may be varied periodically between 2000 to

2500 to direct oil splash different areas of the camshaft. After the 30 minute break-in period, change

the oil and filter again to be sure all contaminants and break-in lube are remove from the engine. The

inner valve springs can now be replaced.



If you do not understand any part of these instructions, especially the camshaft break-in procedure,

please contact one of our CAM HELP technical consultants at 1-800-999-0853. We’ll be glad to

help you with any problems or questions you may have.