humblesmith
Member
I'm replacing the wet sleeves on my John Deere 2640. I'm fairly mechanical but have not done this particular job before and I'm seeking advice.
I pulled the head. it looks to me like it needs cleaning as at least one exhaust port has a fair amount of carbon built up in it. The sleeves blew
an o ring so it's no surprise it was smoking a little, but not much.
I'm assuming I should take the head to a machine shop and get it boiled out, yes?
Should I pull the valves or can they clean it with the valves in?
Is it a good idea to get the head surfaced?
I'm not sure how to tell whether the valves need work. Any suggestions?
I pulled the head. it looks to me like it needs cleaning as at least one exhaust port has a fair amount of carbon built up in it. The sleeves blew
an o ring so it's no surprise it was smoking a little, but not much.
I'm assuming I should take the head to a machine shop and get it boiled out, yes?
Should I pull the valves or can they clean it with the valves in?
Is it a good idea to get the head surfaced?
I'm not sure how to tell whether the valves need work. Any suggestions?