CLASS RACER FORUM - View Single Post - Cam-lifter break in methods....open valve spring pressure

Rusty Davenport · 02-20-2014, 05:28 PM

OK.......we have done all the necessary pains to not wipe the cam out at break in time....the cam is coated and polished, the tool steel lifters are coated, the open spring pressure is 400 lbs.......is there a minimum spring pressure that requires a light spring break in and then the heavier spring or is changing springs required on any open spring pressure regardless of how low the spring pressure ???

02-20-2014, 05:28 PM	#1
Rusty Davenport Senior Member Join Date: Jun 2005 Location: Nashville N.C. Posts: 506 Likes: 4 Liked 101 Times in 27 Posts	Cam-lifter break in methods....open valve spring pressure OK.......we have done all the necessary pains to not wipe the cam out at break in time....the cam is coated and polished, the tool steel lifters are coated, the open spring pressure is 400 lbs.......is there a minimum spring pressure that requires a light spring break in and then the heavier spring or is changing springs required on any open spring pressure regardless of how low the spring pressure ??? __________________ NHRA AND IHRA STOCK ELIMINATOR 2772