We're having a couple of days off from DIY, the railway and allotmenting and I've walked the boy so it's time for a bit of motorcycle activity. After putting another coat of black enamel on the Model A front mudguard and rear stand, I clean the bench down and pull the W/NGs cases out of the frame, where they were after the engine plate trial fit.
First job is to pull out the base studs and clean the gasket faces:
One of them is extremely stubborn and I elect to scrape around it. It's a bit more fiddly but we don't want to damage the stud or the case for the sake of making the gasket preparation a bit easier.
I've measured up the camshaft and the cam bushes in and found that the crankcase end camshaft journal is in poor shape - the wear is mostly in the camshaft. I'll seek advice on that one, but the crankcase end bush can come out when I pull out the old main bearings.
I use the excellent Rothenburger MAPP torch for this, with my infra red thermometer:
This is a bit tricky, as son Thomas has my small circlip pliers but it comes out with the assistance of a scriber and a small screwdriver:
Next, we need to sort out the camshaft.