Well an update on the slow motion Oliver 77 revival...
did some dirt work today, lot of work, and chains located with tillers on a tractor make quite the racket :). There's a before, after, chain and where the dirt went picture. Where the dirt went was climbable with the tractor before but not mowable with the tractor or riding mower but in theory...
www.therangerstation.com
Ripped the head off to look for carnage:
Got all the pretty red hydraulic oil out... and everything looked fine.
Nothing obviously broken/cracked. Pistons are all even with their mates so no bent/broken rods. #5 was lower on fluid so either it soaked past the rings over the winter or maybe it has an issue.
So I dropped the pan which I later learned wasn't really intended to be done with the engine in the tractor. When to drop the oil and who knows what all out... and it was empty. Didn't remember doing that before but maybe I had? Major PITA. Front pan bolts are over the front axle bolster, rear two are inside the rear inspection cover in the clutch bellhousing. So remove the expansion cover... but you can't get a wrench on the nuts. I wedged a flat screwdriver in there to hold them until they got enough loose enough to get a wrench on them. Once all the bolts are out the cover is trapped between the clutch housing and frame but I could send a socket up there with a long extension to zip out the oil pan bolts. Even with the pan out the cover is still trapped in there... I don't really get the point of an inspection cover if you have to pull the engine/clutch to do any inspecting.
Anyway, I didn't get any pics but same story down below. No smoking gun. I can't see anything damaged.
I am thinking hone the cylinders to get them nice and clean and pull it around and exercise it. It is still really tight and there is some corrosion where the pistons were... maybe the "pop" was the pistons moving past that?
So I go to clean the oil pan up so I can put it back in and put some kind of lube in there.
Fudge, a rust hole.
With like 3 more on the way...
Getting tired of that thing kicking my butt I decided to replace the front tire on the WD so I may have at least one functioning tractor this spring (granted it needs brakes)
Who says you can't get a solid axle to flex like an independent?
I didn't get a finished pic but the tires look pretty much the same, looks "normal" again.
I say that because my main tractor, is having serious rear wheel problems. The new valvestem is puking fluid out:
Tire isn't new, it has some weatherchecking... and it seems to be oozing fluid out the cracks which I don't think is a very good omen.
Sooo... it spent all winter on a jackstand and I haven't quite figured out how to crack that nut. I have a better tire... also on a fluid laden rim. So breaking down two wheels full of fluid, cleaning up a rim and reassembling with a new tube. Just haven't achieved that level of free time/ambition yet.