Bonze Main Bearings

[70Turbobug]

The outside diameter of 103mm,104mm and 105mm cylinders are the same.Why did you have to use rings or am I misunderstanding something? My Deutz cylinders have a larger outside diameter than the Mahle,JE and AA cylinders so I had to machine the case and heads a little larger.It sounds like you have had a lot set backs with your engine besides the EP heads issue which I remember too well.I hope you have better luck now and finally get it finished.
Back to the deflector issue...deflectors are useless with such big engines,because they are simply too small! The engine is wider, the cylinders longer.Trust me Remmele doesn't use them either.Anything with a stroker crank and longer cylinders the deflectors become more of a hazard than an improvement in cooling.Also you have custom cylinders so the off the shelf stuff won't fit anyway,at least not properly...

[effvee]

Hi Mark, the added ring is due to way back when; Gregg Riddle of Rimco offered a wider sealing surface for the type IV cylinders. It was to add a extra sealing area.

These are the cast iron 94's opened up to 96's and with a added sealing ring. I also had the heads and cylinder dual "O" ring grooved.

These 2.0 head were opened up for the extra sealing ring. I also had the 1.7 heads done the same way. But then I got greedy and wanted more bore and stroke.

I have read somewhere the lower side of the cylinder do need air routing, so I'm going to address it some how and when I get to that point. I need to have the heads CC and see how much of my combustion chamber were enlarged in my porting. I want 8 compression, and possibly zero piston to cylinder height; I hope my heads were opened up enough to gain the 8 compression ratio. So now you know why the extra ring on the latest version. and this is it no matter what

[Bad bug]

Originally Posted by 70Turbobug

My Deutz cylinders have a larger outside diameter than the Mahle,JE and AA cylinders so I had to machine the case and heads a little larger...

Mark couldn't the bottom of the liners be machined down so they are the standard fit of the 103mm to 105mm bore. Why i ask is i dont want to take too much from the case. The heads i was thinking of utilizing the wider sealing surface of the deutz to help seal the liners to the head.

For some reason i am still thinking of using dual plug 993 or is it 964 heads to build a overfly engine.