520H test and tune

[sqrlgtr 2,283]

Valves adjusted and heads back on and torqued down then finally got around to taking carb off of manifold for good ol soak and clean and low and behold barely tapped manifold, because they were stuck together, and manifold came apart in two pieces. Figured that was what was causing the surging issues. In above post you can see I already had another manifold that had been taken apart and resealed so no biggie, but it had no provision for vacuum gauge, so I had to drill and tap it for hose fitting. Slowly getting there . I did get a chance to clean motor and rest of tractor and boy did that Eaton need a good cleaning off.