3 Cylinder 40% Scale Anzini W engine.

[johanneskees]

I built this engine from scratch. No castings. Problem with pistons, the aluminium expands to much. If I increase play the pistons become to loose. I used 6068 aluminium, what should I use. The bore is 40.5mm and the sleeves are centrifugally casted cast Iron.

 

[Jasonb]

Make cast iron piston rings, the spring in the rings will take up any expansion.

I would think two rings about 2.5mm wide and 1-1.5mm thick should do

J

 

[stevehuckss396]

Take a look at 7075 aluminum

 

[Mosey]

Is there a picture of this engine?? Please.

 

[johanneskees]

I will post a couple of photographs. Just want to do the photographing. give ne 5 days please.
Thanks for the advice regarding cast Iron rings and 7075 alli.

 

[johan jorez]

hi ,
i build a engine with the sleeve en piston from a Citroën 1.1i, TU1JP (HFX)
to solve the problem above ( i'm just in an early stage of building without drawings );D

 

[johanneskees]

Here are the photos I promised. The engine is 199 cc. and the test propeller is 30 inches.


Measure and know!

 

[Anko]

Incredible work! I really like your engine! where you get the plans??

 

[johanneskees]

Incredible work! I really like your engine! where you get the plans??

Thank you for the compliment, I took data from all over the internet and compiled my cwn drawings. Modified design slightly in order to make it practical for modelling without castings.

 

[metalmad]

Really Top stuff mate
please Tell me your going to publish the Plan set
Pete