clayborne
Member
- Joined
- Dec 21, 2010
- Messages
- 21
- Vehicle Year
- 1988
- Transmission
- Automatic
So if the issue is the recessed valve seats per TSB 05-26-3, is there anything a macine shop can do about that? Or would we need new heads with hardened valve seats? I don't think I understand well enough what the valve seat looks like to tell - is it just a part of the same iron casting but with some form of surface hardening?
I may be getting ahead of myself since we don't know that's the issue in either of our cases, but just trying to understand better how things work.
A reputable machine shop can remove the old valve seats and put in better ones. The only reason I could see not going this route is because of the time it would take to remove the heads find a shop and wait a while before they repair yours (the one local to me has a 4-week lead time). The benefit of having new heads is that you can swap right away. That too has its drawbacks If they are new there are possible casting issues and if they are rebuilt originals you might wind up in the same place years down the road.
Of course this isn’t knowledge from my Ranger but from previous head issues from various previous cars. I am assuming there is nothing about the 3.0 heads that make them special in any way so this should be accurate.