OK, I'm about ready to order my parts for the overhaul. I am starting with the WD-45 case and head. I will be going to the D-17 overhaul kit. The two options are center-thrust bearing or end thrust bearing. I presume the center-thrust is the older style, similar to the WD-45 but I will confirm that once I have the crank micced.
Other than the piston/ring difference for 7.25 C/R over the 6.45 C/R change, I"m wondering if there is any other change made? I've been informed that the gov springs will be different to make 1650 RPM, and of course the carb will be slightly larger bore, but if there are other engine differences, now would be a good time to know.
Cam profile? Valve train, or valve size? Head casting? etc.
If anyone has done this before please chime in before I go making this up. If there is a difference in valve train, I will make a hybrid and re-use my WD-45 head and valves, and get the best perf I can out of what I have in terms of head/valve flow.
I'm ordering the parts through here, unless anyone has had trouble with parts from this seller.
Other than the piston/ring difference for 7.25 C/R over the 6.45 C/R change, I"m wondering if there is any other change made? I've been informed that the gov springs will be different to make 1650 RPM, and of course the carb will be slightly larger bore, but if there are other engine differences, now would be a good time to know.
Cam profile? Valve train, or valve size? Head casting? etc.
If anyone has done this before please chime in before I go making this up. If there is a difference in valve train, I will make a hybrid and re-use my WD-45 head and valves, and get the best perf I can out of what I have in terms of head/valve flow.
I'm ordering the parts through here, unless anyone has had trouble with parts from this seller.