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Thank you Nparmley you are right my intention was to build old fashion boat engine like you mentioned in your post. Engine is my own design but I do rarely some drawings I usually make engines from my head /imagination plus I used some castings from my previous engines projects. I have a few...

I wish I had money for this casting set. Good luck to new owner in machining this engine.

Hello Brian unfortunately my antivirus software rejects to download your drawings . It is pity because I really like your clever ideas.

Hello Brian can you release some drawings of your clutch mechanism - you have always good ideas . TonyM - CORK !!! is what I need . Thank you

Nice design sbdtasos . I do not understand how will you assembly con rods to the crank shaft.

Thank you guys. Brian it is friction clutch can by slowly engaged. I am looking for some pressure plate friction material because i have there FELT only to check clutch functionality .

Hello friends I am four stroke enthusiast but one year ago I successfully finished two cylinder steam engine. I run engine on live steam roughly 30 minutes then I had to turn to different project so I put engine on the shelf . Last weekend I had spare time so I decided to check steam engine...

I am amazed with this engine.

Of course

Hello friends I have finished this engine. Capacity 15 ccm four stroke. 3 valves /2 inlet , 1 exhaust. Belt driven OHV. Glow ignition. Water cooled cylinder and cyl. head with water pump. Radiator - soldered brass pipes. Clutch controlled by simple lever. Frame - aluminium square rods...

LOHRING I like glow plug ignition too but i am surprised that is possible to ignite gasoline fuel with glow plug. Can you send more information on this subject? Thank you

Have a look on HOBBY KING web . Click glow engine parts for ASP engines.

I agree with Cogsy the best way to seat rings and valves is to run engine.

What for is ARKOGRAPH looks quite mysterious . What is purpose of brick behind Mercedes rear wheel ? I am just joking. Beautiful car I have never seen this model of Mercedes . Is it customized for you?

Seven years ago I was in your shoes - reading HMEM forum to soak the knowledge of experienced guys . //thank you guys again// Then I start to built my first 4 stroke single cylinder from junk material. I have found that is not important for first engine perfectly aligned crank shaft ...

Thank you guys. Yes I mean spindle concentricity . English is not my mother language so I do often many mistakes . By the way what is difference between RUN OUT and CONCENTRICITY ? //GOOGLE TRANSLATOR does not serve me in this case//. Thank you again .

Good question Anatol . I am interested in using plastic parts in engines too. Here in Slovakia is possible to buy POM material /probably DELRIN/ in many modifications /POM C,POM H,POM CTF,POM CGF/ but this POM material can withstand hot water + 80 Celsius only short time + 120 Celsius. POM...

jimsshop1 Have a look on ZAPJACK threads you will see his complicated models of tractors. By the way ZAPJACK how is your RR Merlin ?

I appreciate how clean you keep your machines. What is SENSITIVE boring head ?

Mechanicboy I have cleaned inner surface of spindle still 0.03 mm runout offset. goldstar31 sending picture of how i measure offset. In the collet is piece of 4 mm linear bearing shaft. Thank you