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I have had so much trouble getting 5/16″ spring washers. Most of the covers (sump, timing cover, valve cover) on the diesel engine use 5/16″ UNC threaded bolt for a 1/2″ across flats spanner or socket. I ran out of 5/16″ spring washers I decided to replace the washers as its hard to clean the old ones, I tried 3 places to get some replacements! They could all sell me M8 spring washers. I explained that if I had wanted M8 I would have asked for M8! I should have known really that B&D bolts my usual supplier of bolts was the place to go. when I asked Andrew said “did I want a light or heavy weight spring washer”. How refreshing.

M8 ID=8.55mm   5/16″ ID=8.05mm  that’s .5mm difference.

I’ve left the valve cover / oil filler and breather cover that goes on the side of the engine in the degreaser over Christmas it is another alloy part. It came out nice and shiney so I’ll be heating it up in the oven and giving it an etch primer later today.

lock washer sizes

 Next jobs starting tonight,

I want to attach the engine to the tractor so in order to do this… I need to.
Cleanout the inside and outside of the clutch housing.  Its full of oil from when the seal at the back of the engine split.
Replace the clutch thrust bearing.
Clean up the bolts and 1 stud that hold the engine to clutch housing.
Work out how I’m going to lift the engine and move it into the correct position/height.

Ferguson Tools
I’ve added a Ferguson Tools page below on the right. Information about the Britool tools originally available when the tractors where supplied new.