Sunday saw me pottering up to the Russell Newbery Works open day at Daventry. I wont bore you with to much detail, but rest assured that most of the talk was around RN's, but the National owners (3 of us I think) were present too!
Sarah on NB Warrior has more detail on her blog:
Note the cock up on the hand over of the pistons and liners - DOH!
What of the engine?
My previous post was about the template for the engine bed. Whilst I was thinking about ordering steel, I also thought about how I would eventually mount the starter motor and fabricate a suitable mounting bracket. The engine was originally hand start only and had a large industrial flywheel with no ring gear. Not to much of a problem as the engine came with a 'marine flywheel that should fit'.
One thing I had never done was check to see if it did. Probably because both of the two mating components (flywheel & crankshaft) were so damn heavy to shift around.
Whilst talking about this, anyone reading ye olde blogg who is considering rebuilding any engine of this ilk, please take in to account the weight of components that you will have to 'move around'. The flywheel is about 2 cwt, the block 2.75cwt, the crank is over 4' long and even things like timing covers make you grunt when you lift them. Every thing takes 3 times as long and twice as much effort!
Don't be put off though, its great fun (in a fairly masochistic sense).
Anyway, The sunshine saw me wheeling out the engine, putting together the 2 tonne engine hoist and lift up the flywheel to offer it up to the crank. Did it fit? Like a glove! The shoulder on the crank matched the recess of the flywheel, as did the bolt holes and diameters.
I then took various photograph and measurements so that I could look at working out how to mount the starter motor bracket (once it was fabricated - which is another job!).
Looking at the above photo you would expect the paint to be in fairly poor condition. Over about 30% of the area it was, the remaining 70% it was stuck like poo to a blanket. I spent a whole day stripping several layers of paint off the flywheel ready for the usual wirebrushing etc, etc. Again a job complicated by having to move a 2 cwt lump of metal around.
No comments:
Post a Comment