The sump plate looked a bit mangled when I took it out after the oil was drained.
After degreasing I cleaned it up using some clock cleaner which is an ammoniated fluid used for stripping the corrosion from brass and copper. It works very well on the gauze.
When I got it clean, I manoeuvred the washer that stiffens the hole for the oil pickup pipe out of it's wire prison. I managed to get it back into place and squeeze it tight to retain the gauze.
With that done I could think about refitting the sump plate. I destroyed the gasket completely when I removed it so I needed to make a new one.
With a sump plate it's easy to cut a piece of gasket paper to the right shape and to mark the holes.
Punching the holes is the easiest way to make them tidy and I used the corner of the sump plate to complete the ring of gasket around the holes.
I cut the centre out with a craft knife - it will be big enough to use for something else.
When I drained the sump, there was around a cup full of oil coming out and of course the gauze was damaged. The pickup pipe was the cause of both of these problems in that it was out of position - too high and off centre. It's just a copper pipe retained with a bracket inside the crankcase so it's quite easy to bend it into the right place.
With some Threebond 1215 the sump plate is back on and the plug fitted.
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