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I have scavenged a second hand turbo and built a jet engine. Very easy to get spooling and runs well but I keep getting flame escaping past the exhaust turbine and then get flame out. It's a waste gated turbo specked to open the waste gate at 8 psi which I can't spool it enough to get to happen...

Trying to build a jet turbine. So far attempt one fired but failed to drive turbine. Attempting lighter weight turbine but just wondering what are the best angles for exhaust and compressor blades

I need a experienced sterling engine builder to build my engine design. Prefer east coast Australia. Prepared to pay for time and materials. Need to have cad as I don't. This is a project of mine but sadly I am not that good a machinist and I really don't have the right equipment. I would...

I m trying to work out the btu per hour on a 16 ltr 4 stroke turbo Diesel engine . The info I can share is that the turbo produces 31 psi boost the engine runs at 1650 rpm and the pyrometer averages 350 degrees celcius. Diesel burn is approximately 75 ltr per hour. Can anybody help

Can someone explain the difference between the amount of silver in the rod and what effect this has on the strength of the weld and the materials to be joined,my local supplier has 2% 15% and 30% rods from 1.6 mm to 3.5 mm rods,I purchased some 2% 2.5 mm rids and tried them their melting point...

Tinkering with a couple of crank design changes . Wondering if any of these designs offer any advantage over conventional cranks

Is there a standard way of working out diameter and weight needed in a fly wheel.i have built a air motor that has standard valves for inlet and outlet and I know my outlet needs some modification to allow proper airflow but also thinking fly wheel may be to heavy or large or maybe not large...

Does anyone know how to work out the volume of air at 100 psi that has been allowed to expand back to 1 atmosphere.this is for a air engine I am trying to build. I don't want the air to have any pressure at the bottom of the stroke but also don't want the valves to close to soon and create a...

Is it possible to braze brass to mild steel or is there a better way.any tricks would be helpful I haven't done any brazing for about 18 yrs and from memory I want that good at it

Do you turn hex in a lathe if so how do you do it without wrecking tools.I have seen on this forum machinists turning parts that are off centre .when I try this my cutting tools are broken or a blunt very quickly.Am I trying something that is impossible or is there a trick I don't know about

Can someone explain why there needs to be a gap in rings .i always believed that they were a tight fit to prevent blowby/oil burning.also any thermal expansion should be equal between cylinder piston and rings otherwise as the motor warmed up compression would leak :hDe:

Does anyone know of a way to distort a cranks circular motion into a oscillating motion.I am thinking that if we decrease the up and down motion and increase the side motion we could increase torque and decrease cylinder volume