The Ford Barn - View Single Post - bad Babbitt Bearing or Valve Poor Quality Valve Job

Rodrelic · 04-10-2021, 09:02 AM

If the oil pressure is good, I would pull the intake and start checking valve gap, easiest thing to check. If wide, will have to pull heads and grind valves, &/or install adjustable. If pulling the valves to change lifters, may as well touch up or just lap them too.
I had a rattley 8RT that ran good, and disassembly showed a depression in the lifter where the stem rode, some quite deep. Could not gauge divot, but about .020. Don’t know why, but replaced with adjustables and lapped valves, run quiet

04-10-2021, 09:02 AM	#5
Rodrelic Senior Member Join Date: Mar 2018 Location: Florida panhandle Posts: 219	Re: bad Babbitt Bearing or Valve Poor Quality Valve Job If the oil pressure is good, I would pull the intake and start checking valve gap, easiest thing to check. If wide, will have to pull heads and grind valves, &/or install adjustable. If pulling the valves to change lifters, may as well touch up or just lap them too. I had a rattley 8RT that ran good, and disassembly showed a depression in the lifter where the stem rode, some quite deep. Could not gauge divot, but about .020. Don’t know why, but replaced with adjustables and lapped valves, run quiet