Originally Posted by Foot dragger
Maybe soaking the valves in some sort of super cleaner would soften the buildup. That looks about normal I think for an engine with those hours on it. Ned may chime in and he knows whole bunches more then most of us about these engines. (2 to 3 oz's isnt much)
Happy New Years!
This has been a very helpful thread for us newish 530 owners.
+ 1 on the helpful thread,
now seeing those valves and piston would it be wise to use some of those gas additives that decarbon engines before tearing the top down? as a preventive action