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Webster IC Engine build log.

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spuddevans:
I have no words of advice to offer, just to say that I'm sure that you'll get it running before too long. Stick with it, eliminating one thing at a time, and soon enough you will hear the magic come alive.


Great job  :thumbup: :thumbup:


Tim

dbvandy:
In the short term you can just stick a drill straight onto the shaft until you start hearing pops.  It wont run because the drill will keep it from spinning up, but it will pop and you can adjust the fuel mixture.  Try it as lean as you can and work your way to rich (fully open then to closed on the mixture nut)

You can also just put your finger over the hole every few seconds to enrich the mixture until it starts popping.  You will know it when you hear it...

Doug

raynerd:
Hi Chaps

Thanks for the words of encouragement.

I spent a while last night playing with it and first pull got a good few pops from it. Then nothing.

Suction is fantastic - there is compression on the compression stroke and that force on the piston is removed in the exhaust stroke (i.e the valves are working good). I`m confident everything about the cylinder and valve was fine.

I`d spent a long time playing with the timing because I concluded this must be the issue. Fiddled with it, I gave it a kick start and it popped again. Tried it again and nothing.


The crank was the first part that I`ve ever silver soldered. In retrospect I didn`t get it hot enough but it had joined so I had left it. I was only 5 minutes away from giving up again for the evening that I realised the crank shaft was spinning in the two piece section I`d made! This was totally messing up all the timing. Clearly with the little silver solder in there it was a friction fit and so sometimes (especially slowly by hand) it was looking to turn but actually it was spinning and throwing out all the timings!

I`ve no silver solder so I`ve just ordered some on next day delivery. I`ll strip it down tonight again ready for soldering over weekend. I`m more confident now anyway! The issue comes when it doesn`t work tomorrow after re-soldering  :doh:  :lol:     I`m not giving up on this engine, I know compression is good, it is sparking, the flywheel is now good and heavy ... I`ve said in the last few posts that it must be timing and so my fingers are crossed. It also explains why I have the occasional pop. After being shown how to silver solder the two piece valves I`m confident I can get a good join on the crank shaft and that`ll be another step closer to a running engine.

Chris

sbwhart:
You'll get their Chris.

Now that you've been shown how to silver solder you'll now how to get it correct.

Good luck:--  put-put-put-put. thats the sound you will soon hear.  :D

Stew

madjackghengis:
Hi Chris, usually, the most frustrating part is finding the problem, and then it's just a matter of getting it right, and things look up.  I'm sure you'll be enjoying the putt putt very soon.  I'm looking forward to the video of it running it's little heart out. :beer: Cheers,  Jack

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