MetalworkingFun Forum

That is one sweet engine, Brian. Congratulations.

The next job was to fit the piston rings.

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Now I have to paint the iron parts and make a crank case cover.

Always some work to do. Brian.

(03-14-2015, 08:32 AM)Brian Wrote: [ -> ]Always some work to do. Brian.

Keeps you off the streets Brian  

DaveH

At last I can get away from doing the plans and the workshop notes ,it's all done. and available .

I have managed to get some time in running the engine  and it improves all the time as it runs in, and I get used to driving it
I think the exhaust still requires a good silencer to get the best idle performance. but we will see.

A new video is on the way but my editing skills are not up to much, so here are a few photos of the beast. just to fill the space.

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Thank you all for your thanks and likes and support it helps a lot especially for me having the only lathe in town,

Brian  

The latest information  on my engine.
the running in has now passed the one hour mark,  the progress made has all been in the adjustment
of the carburettor and the supply pressure and the demand valve.
the engine has needed no attention at all.  
I have not had to alter any of the design of the carburettor but have constantly been reducing the supply pressure until it
reads 1/4 lb on the gauge but I am not happy that the gauge is reliable at that level so I may have to make a water gauge  to measure accurately .
I have managed to get the idle down to 800 RPM with good throttle response and good recovery to idle, I think that this is a average speed for a small engine   without going to a heavy or large diameter flywheel.  
I am convinced that  gas is the answer for small engines,  Jet sizes are large and needle valves are not required to control the mixture  simple flat ended screws are sufficient  to control the air / fuel ratio.

I have a new video  but I am at a loss to get it on this site  but if you  You tube  32 x 40 gas engine you will find it or go to
Brian Hogger    channel.
I will  have to learn more about computers ETC it causes me a lot of problems  but at 74  I simply don't have the  time.

I am at the moment doodling again on the drawings for a 5 cylinder radial so be warned You just have more of my rubbish to contend with.

Brian.

Bring on the rubbish Brian.

Ed

Steve

That is really nice Brian - runs great. Superb.       

 
DaveH

Still sorting out the odds and ends for the engine.   First getting free of the ball and chain of the workshop gas cylinder was of prime importance.

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My friend the bin man gave me a dead gas blowlamp so I made a 20 tpi  left hand adaptor for it to take the regulator and we are in clover.  the only problem is when you are near the end of the gas it will only run at tick over so I simply let it run until all the gas is used.

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Second problem was the small amount of oil splash from the big end lubrication system, not a lot but just enough to require cleaning up after a run.
Now I racked my poor brains over this one  in the end I decided on a curved metal cover just to catch the lube thrown from the bearing.
So first I had to make a pattern,  having a piece of thin plastic from some packaging handy I formed a piece to clip into place under the oilers. and that was it, I got no further it was perfect, not only did it do the job the big end was in full view.
The engine now runs perfectly clean. I am not shure  what the moral of this story is but there is one in there somewhere???
When I took the photos  the clear plastic did not show up to well so I have put a piece of card under it so you can see.

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Slowly getting there Brian

That is one sweet running engine Brian. Thank you for sharing it with us.

Tom