McDonald Imperial Super-Diesel

This is where it is at now. I removed the hopper which took some doing as the gasket had a good hold on it. The 3 bolts that held it in place snapped off due to rust, surprise. Then I started digging out the rust from around the cylinder. So far I have remove 2 x 2 litre ice cream containers of loose flakey rust and this has got me half way down past the bore with a lot more to go. At least now I can see the small brass elbow to connect the oil primer line to now. Next was time to remove the crankshaft. I undid the nuts on both side covers and got one cover to move away fairly easily but the other side where the gears and oil pump are was a bit more tricky. Eventually it let go to expose a huge mess inside. Because this engine has not run for many years everything in here was dry as a bone to a point that it was almost carbon black again. It was very thick so I scraped a lot out and wiped the ends of the gears to find the timing marks from the crankshaft to the cam. There are no timing marks for the governor or oil pump. I mention this because I have come across one engine that required the oil pump to be timed with the spark of the engine and this was the David Brown 30C engine. It had to be timed so the offset tang of the distributor would engage with the oil pump.
Next it is time to remove the gears and get inside for a clearer look.

Nice mess in here to clean up. Believe it or not the pipe is on top of the governor shaft and it is as free as a bird to operate.

Cobba,
I have heard the saying "Glutton for punishment" Do you know anyone it might apply to?

Definitely more rust than in my engine's combustion chambers - I feel soooooo much better now

Lookn @ th@ rust reminds me of a post 9 years ago
:lol:

www.hcvc.com.au/forum/Findit/5769-metal-stitching?start=0

WotSezU?
cya

Pick me, pick me ! I definately am a gluten for punishment but at the same time enjoying all the knuckle grazing, swearing but most of all getting it done a little bit at a time.
I did say that when you see the mess inside this engine you will think yours is off the F1 floor, spotless.
I thought Swishy was going to say "look at that rust, it reminds me of a Volvo", how disappointing.
My concern with the rust is that when I get the liner pushed out it might take other important stuff with it and slow dow the forward momentum.

Crankshaft out today.

Mains and big end are made of bronze. The mains are bushes and the big end is made as shells.

Today has been a day of cleaning up the carbon black from the side covers, removed one of the crankshaft seals and pushed one of the main bearings out far enough to clean up the blocked oil galleries

Next I continued to clean up the crank, the big end journal had light surface rust and cleaned off with some fine wet n dry. Then I cleaned up the big end set up and you can see the 3 shims that will sit between the big end bearing carrier and the bottom of the conrod which you can add or subtract the shims to alter the compression ratio. Then I bolted it in place for safe keeping, only a bit better than finger tight.