Opening the engine 
Well still no photos I'm afraid, I really must remember to take some next time the sun comes out!

I've finally opened the engine and seen the extent of the carbon deposits. Cylinder 1 is worst, number 4 is bad, with 2 and 3 fairly clean (in comparison!). There is a good 5mm thick layer of hard coke covering everything in cylinder 1, I've not removed any of the valves from the head yet to see what state they're in but the cylinder liners are visually fine, there is no deep scoring and all the piston rings on number 1 are intact. I guess it is just even wear all over and probably a poor seal around the valves.

There's a lot of cleaning to do to remove all the black sludge from the sump etc so there's plenty of jobs to keep me busy until I pluck up the courage to pull the pistons out.

In other news I got my seat pan back from my dad's friend with the big hole patched up. I've ground back the welds, filled all the biggest gaps with epoxy and given it a first coat of primer. Just need to decide how I'm going to fit it back onto the seat hinge now. It was riveted rather than welded but I may find some small nuts and bolts I haven't decided yet.

[ view entry ] ( 7569 views )   |  permalink
Back together 


The back end is all back together and filled with fresh oil!

I've jacked one of the wheels up so the diff could turn and run the tractor for a bit to work all the oil around the gears and diff.

The lift arms shoot up instantly now and don't drop with me sat on the fork even hours after the engine is switched off, so I think that proves there's no wear on the hydraulic internals! Must have just been leaks through the valves caused by grit. Obviously not had a chance to put any real weight on the lift yet and set up the stops but I can relax a bit now that the back end is filled with oil again.

Before I run the tractor again I really must get the missing air filter parts sorted out because the governor is very twitchy with such a low vacuum. I had a sheet of plastic with a small hole in over the end of the intake while I was testing the hydraulics. Not ideal at all...

[ view entry ] ( 10189 views )   |  permalink
ATCHOOOO-chug-chug-chug 
I put the fuel tank back on yesterday and bled the air out of the fuel system. The engine started easily and without incident apart from sneezing sooty rainwater from the exhaust system all over me on the first exhaust stroke.
The engine seems to be running very smoothly, there's no obvious clattering knocking sounds which is good. Also my core plugs seem to have sealed fine as there was no more water leaking out (well only at the drain tap on the bottom of the radiator, but that's cause it was loose)
We had the Playing Field's MF35 out of the shed today (just to get at an old mower buried behind it) and it's amazing to note the difference in the sounds of the engine. My SMC engine purrs nicely chug-chug-chug, the Perkins in the 35 on the other hand sounds more like a fishing boat Tunk-Tunk-Tunk-Tunk
I still haven't received the parts I ordered from Agriline, I'll have to contact them tomorrow and see if they've sent them yet. Until I get those seals and gaskets I can't really get on any further. (All I can do is more cleaning, bleh)

[ view entry ] ( 9063 views )   |  permalink

<<First <Back | 1 | 2 |