The Bucket Foundry

**jhenise** · 14th December 2015, 09:57

I did think about going 5-port for sure. But I didn't want to make another set of cases with the correct windows, and mainly wanted to test an idea: How much are streamlined transfer passages worth compared to old-school parallel iron-liner walled passages? So I decided to leave the cases unchanged, the port windows unchanged and simply modify the transfer port flow path.

this probably wont be my last cylinder

so fancier porting may be in the future for sure!

**speedpro** · 14th December 2015, 11:48

Interesting.

Why haven't you simply put long studs right through the cylinder fins and the head with a "torque plate/girdle" on top to hold the whole package together? That would completely remove the forces on those little tangs that snap off the base.

**jhenise** · 14th December 2015, 13:33

"Why haven't you simply put long studs right through the cylinder fins and the head with a "torque plate/girdle" on top to hold the whole package together? That would completely remove the forces on those little tangs that snap off the base."

That was going to be the next move, but I have built a foundry and am more excited to learn how to cast a cylinder.

The new cast cylinder will mount with through clamping studs...

**Flettner** · 14th December 2015, 13:53

No, good on you, if you can make a new one why not? Much better to be able to fix all the mistakes (Kawasaki installed) and you don't go wreaking any more old rare Kawasaki cylinders. Also it won't end up looking like it fell out from under the washing machine, a patch up. Thank you for posting this cylinder make.

**Flettner** · 14th December 2015, 18:20

Another side project. 30.5mm piston x 5mm stroke, no ports. Piston has been machined and spark eroded (inside) from a soild piece of Diesel truck piston (Neil Lickfold will know, 20ish % silicon). Made the ring today out of 4140 and will get it nitrided, sleeve is just a piece of cast iron. Piston gudgin pin is not machined yet.

**F5 Dave** · 14th December 2015, 18:55

V8 F5 bike?

**Flettner** · 14th December 2015, 19:19

Originally Posted by F5 Dave

V8 F5 bike?

No, but it is a horizontally opposed twin (100cc), an HCCI test engine.

**Lightbulb** · 14th December 2015, 20:47

Great work there Flettner.
That is Mahle 138 recycled from Mercedes diesel truck engines.
Great material for sure.
Neil L

**tjbw** · 14th December 2015, 22:21

Originally Posted by Flettner

Another side project. 30.5mm piston x 5mm stroke, no ports. Piston has been machined and spark eroded (inside) from a soild piece of Diesel truck piston (Neil Lickfold will know, 20ish % silicon). Made the ring today out of 4140 and will get it nitrided, sleeve is just a piece of cast iron. Piston gudgin pin is not machined yet.

Looks great, but what's the correct stroke of each piston?

**F5 Dave** · 15th December 2015, 06:15

No its still 5mm but relative to the barrel there's another 10mm and relative to the sun there's another 5. Finally I'm starting to understand.

Or I've just woken up a bit groggy.

**Cheesy** · 23rd December 2015, 10:01

This stuff might be interesting to try for your baby pistons, Osprey controlled expansion
http://smt.sandvik.com/en/products/c...ct-properties/

I think this one was CE17, was a while ago

**Flettner** · 23rd December 2015, 19:54

A bit side tracked (and fascinated with) HCCI. Soooo, what happens next?
Yes, needs an idler pully (or two on the move for timing adjustment while running)
Assuming it runs

Can it be throttled? Or will it run with open inlet and fuel adjustment only (like a diesel)? Squirt more fuel, make more power??