Cylinder temperature

[thomaskwscott]

I've been running my ETZ251 with a home made (read bodged) reed valve holder and a cut down RD350 vale for the last few weeks and have decided it's something i'd like to keep. Unfortunately, i'm less than confident in my hodge podge of box section and gasket sealant that's currently holding it on and looking for something more weapons grade.

Whilst all this has been going on I've got into 3d printing and thought it would be nice to 3d print a reed valve holder out of ABS plastic for the MZ. However, ABS has a relatively low melting point (around 105 degrees Celsius) and I was wondering if i'd get away with it if I was to screw a 3d printed holder onto the inlet? There's a piece of what looks like bakelite that goes in there normally and I could keep that, I'm also open to building heat sinks into the design.

Does anyone know what kind of temperatures are hit at the inlet port?

[vicar]

Go for a ride then squirt cold water near the inlet if it goes hiss steamy its more than 100 failing that jam a blob of the plastic onto the barrel and see if it melts ... or you could get a block of ally a drill and a dremmel and get creative ...

[thomaskwscott]

"or you could get a block of ally a drill and a dremmel and get creative ..."

That's what i did last time. Turns out i'm better with CAD than with a dremel....

[vicar]

What do the race boys do, try the BMZRC forums perhaps a ready made one is waiting to be bought. Good luck ,