Parcell and Weed Vertical Air Cooled Engine

Well done, that's a great looking and running engine; must be especially satisfying if its taken a while to get right 

Very nice Scott.

Dave

Very nice indeed Scott,
I've been looking at the water cooled version as a first build. Should suit my little Taig gear.
I don't mind a bit of fiddly stuff (eyes are still good !) and it's encouraging to hear the drawings are good. Was there anything else that you found tricky?
I've been a little put off by the high running speed on videos I've seen, but you sure have yours ticking over real nice and slow. Well done.

Very nice and a great runner congrats….


Don

Thanks, everyone.
The hit and miss governor was the hardest part. Many small parts that had to work properly together.
The biggest issue that I had was a very inconsistent hit and miss operation which caused the engine to run away.
I finally got it fixed (I hope) by making sure that the mechanism was free, but not loose. I had to remake several parts and make lots of adjustments.
The thing that helped the most was retarding the timing quite a bit - it really settled things down.
With the timing at TDC it ran so hard and fast that it shook a lot of the screws and bolts loose. I cleaned and reassembled it with red Loctite.
It still jumps around when it fires. I screwed a couple of pieces of steel to the bottom of the base for more weight and it's pretty stable now.
This one has been quite a challenge to get running right. I put it on the back of the shelf quite a few times!
Scott

Scott,
Looks great and runs as well to. Watched the series of videos and saw it as you sorted out the issues. Congrats on a runner!
Art

You seem to have got that sorted, excellent engine