Last Activity:01-23-2017 4:10 PM
117 Likes on 96 Posts
Posted in thread: Self Setting Parallels for the Drilling Vice on 01-23-2017 at 04:05 PM
What I use to keep the parallels against the jaws is a piece of steel banding bent in half. It
has sufficient spring for the job and if necessary can be opened out again afterwards.The
banding is abou...
Posted in thread: Hubbard Marine Engine on 01-20-2017 at 12:41 PM
With the brackets ready to fit, the first one was pushed in place. Using the DRO's PCD
function, it was easy to set out the 6 holes for the retaining studs. Tapping holes went
through both parts and t...
Posted in thread: Buzz coil on 01-20-2017 at 09:41 AM
Here are some diagrams of buzz coil circuits. The first 2 attachments are the same, but
displayed differently. Put whichever one you want to try in a wooden box that looks like the
original with finge...
Posted in thread: Hubbard Marine Engine on 01-15-2017 at 11:38 PM
Now after that little light relief, it was back to the next real job: the crankshaft brackets.
They have a taper along their length so to hold them in the chuck, the thin end was padded out
to get a d...
Posted in thread: Otto 4 stroke completed - Richard Higby on 01-15-2017 at 02:45 PM
Very nicely done, Richard. I like your version of the vapour carb!DaveThe Emerald Isle
Posted in thread: Hubbard Marine Engine on 01-13-2017 at 10:14 PM
Another good tip. Thank you, John.DaveThe Emerald Isle
Posted in thread: Hubbard Marine Engine on 01-12-2017 at 10:19 PM
Moving on down we come to the push rod bracket. This required a piece of 5 x 5 mm steel, of
which I had none. A raid of the potentially useful bits yielded something that didn't take too
much effort t...
Posted in thread: Hubbard Marine Engine on 01-10-2017 at 08:33 PM
The model uses glow plug ignition but the glow plug is rather out of scale. What I did was to
machine the hex of the plug down by 15 thou. on each face. The round part below the hex was
also reduced i...
Posted in thread: Hubbard Marine Engine on 01-08-2017 at 09:45 PM
After the bore was done, the first crankshaft bracket face was machined using the boring head
as a fly cutter. Not a lot of room between the mounting lugs on the back swing with the tool
Posted in thread: Hubbard Marine Engine on 01-07-2017 at 07:59 PM
There is a protuberance on the bottom of the casting that I suppose is there as a chucking
piece, but for what purpose, I cannot think. So, the first enhancement was the fitting of a