Lister Drawings

[EnnechParticipant @ennech]

The pump ptston to bore clearnce has to be less than the proverbial gnat's.

I could be back leakage.

[JasonBModerator @jasonb]

Yes you probably need to lap the piston to the bore down to 1000 grit and also make sure the non return balls are seating.

[JasonBModerator @jasonb]

Yes its got a decompression valve.

J

[HobbyNutParticipant @hobbynut]

Well the motor fired a few times today, with me spraying a tad of starter fluid into the intake tube, while cranking it with an electric drill.

The pump and injector need rebuilding. I think I will use steel for them this time, and the injector will be to Meeks' sketch, or similar.The pump clearances are what I would consider tight, but not nuclear precision! I am also going to rethink the pump design somewhat. I will let you all know how that goes.

I must thank you all for your help on this project, and I received a packet in the mail from a poster on here. I will document my work on that part. Thanks again.

[HobbyNutParticipant @hobbynut]

I may try that after I build a pump that works!

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