Martha Gouger demandée il y a 2 mois
Over the past busy week I’ve worked on the engine here and 78win there where I may. It must be performed sometime this week. The air outlet of the turbo has been connected to the combustor with PVC pipe and https://stlpca.org fittings. I have also cobbled together a fast and soiled oil stress regulator https://soicaudb.com out of lots of fittings and a needle valve. I’ll work on a completely new gas injector design and add a needle valve to the gas system to try to get better control of the propane pressure. The unique injector is on the left.
My first injector https://hermes-belts.com was a 1/eight in. I found that the combustor is very sensitive to injector 78win orientation. The spark plug might be too far away from the fuel injector. Discoloration so close to the open end leads me to believe that the flame entrance is too far down the tube. At 60 psi it roars like an area shuttle attempting to take off, 78win and has a nice tongue of pale blue flame extending several inches beyond the end of the combustor. Under the darker circumstances I did notice that the flame extends a number of inches past the tip of the combustor.
The last few inches of the flame holder are pretty discolored, but there isn’t any sign of melting as I had feared may occur. Obviously there is an excessive amount of air going into the flame holder with the slots closed. The air blast is admittedly doing a number on the arc. The machinist who made the adaptor plate additionally gave me a small air tank made from large diameter PVC pipe to use as an oil reservoir. The engine spooled up properly, however then topped out at what seemed like a reasonably low pace, and would not self-sustain without the blower.
It is possible that the issue is with the HV power provide. This resulted in an oil fire in the hot turbo as soon as once i shut off the gas and the blower, but left the oil pump working. I need an oil pump of some kind. I still have to mount some parts and do plenty of plumbing before I can do a check run.