I read your problems with engine starting.If you make needle valve as in plan (needle taper and fine 4mm thread) you need open at full...
My conversion was actually with reed valve and not rotary valve. "final" version of reed was looks much simpler. Thin steel reed screved...
Is acceptable head with thicker wedge profile fins like on old Enya or McCoy engines?
Maybe possible solution is simple mold by imprint the head pattern horizontally into sand with fins oriented down.
Very well Keith.
Yes it runs well.I must say that your engine is different than i expected.
Ordinary glow engine if it stops when battery is disconnected, it is...
If I should choose , it would be a design similar to the Webra T4 engines.Its simple with timing belt ,no cams ,pushrods , rockers, springs etc.
Reed valve is fairly simple to make. I make it experimentaly from 0,05mm steel and plastic foil with same result.Engine with RV have very good...
Very interesting book ,thanks for sharing.
Hmm this is too much.
How big is shaft clearance in bearing?
If you put about 1/2 ml of fuel into intake valve and flip prop few times,fuel will drain from front bearing?
If you remove plug and turn shaft,move its freely?
If you put plug into head and flip prop counter clockwise,did you feel resistance...
Hi guys, its pleasant to see that my boy have more brothers around the globe.
Its possible to return the HMEM logo to the thumbnail tab ?
Some time ago i did these conversion.
I turn crankpin integral with shaft .This is different than yours.
The crankcase is sanded in vertical direction to remove machining marks and scratches.
This is my latest finished baby MP3.2 which i designed some time ago.You may look at "finished projects".
For sharing photos i like Pixhost. Its reliable,no missing links.
I was problems with buying ether too.This was reason why i start...
Separate names with a comma.