The Ford Barn - View Single Post - L-100 cam in a 221

Brian · 10-24-2020, 07:40 PM

Cam journals measure between 1.796-1.797". Wear limit is 1.795" Clearance in brgs is .002"
this is what i do; Install .010" undersize cam bearings. Measure the installed dia of each bearing. As a reground cam is ground between centres, I put the camshaft between the same centres and grind the journals to suit the installed bearings. Do not assume that .010" bearings, when installed will measure exactly .010 u/s! Doing it this way ensures perfect concentricity of the camshaft journals and lobes, also, I am assured the correct clearances are in place, with no resultant loss of oil pressure through sloppy clearances.

10-24-2020, 07:40 PM	#14
Brian Senior Member Join Date: May 2010 Location: Masterton, New Zealand Posts: 3,834	Re: L-100 cam in a 221 Cam journals measure between 1.796-1.797". Wear limit is 1.795" Clearance in brgs is .002" this is what i do; Install .010" undersize cam bearings. Measure the installed dia of each bearing. As a reground cam is ground between centres, I put the camshaft between the same centres and grind the journals to suit the installed bearings. Do not assume that .010" bearings, when installed will measure exactly .010 u/s! Doing it this way ensures perfect concentricity of the camshaft journals and lobes, also, I am assured the correct clearances are in place, with no resultant loss of oil pressure through sloppy clearances. __________________ Unfortunately, two half wits don't make a whole wit!