Misc Firewall Forward

Tonight I tackled a few small jobs that had been on the to-do list. I switched out the manifold pressure fluid fitting for one with a restrictor inside, I took some adel clamps off and reinstalled for better wire routing, I safety wired the oil dipstick mount, and I plugged the e-mag ignition cables into the spark plugs.

The manifold pressure fitting I had installed was the Vans component I had originally installed. I later bought the Aircraft Specialty emag install kit, which comes with a 45 degree fitting with a flow restrictor inside. The flow restrictor dampens the fluctuations of air pressure when the engine is running, making for a more accurate manifold pressure reading.

To replace the fitting I first took off the air line, and tried to access the fitting. The baffling makes access a little difficult, so I decided to disconnect the oil return line so I could move that out of the way to gain access. I was then able to access the fitting and remove it. I cleaned up the threads, and then installed the new 45 degree fitting (used loctite 567). Unfortunately I could rotate the 45 degree fitting due to interference with the fluid fitting for the oil return line. I ended up removing that fitting too, installing the MP fitting, cleaning the threads, and then reinstalling the oil return fitting and then the line itself. It was a bit more work than I hoped, but it turned out well and the new setup is much better. The 45 degree fitting also allowed me to reroute the MP line to a more convenient location, out of the way of the oil cooler scat hose.

Safety wiring the oil dipstick mount was hard to reach, but not too bad once I had figured out how to get my hands into the small gap.

I plugged in the ignition lines, and started working on changes to the clamp setup to hold the lines.

The stainless line is the manifold pressure sensor line. This now connects to the back right cylinder via a black 45 degree fluid fitting. The blue fluid fittings are the oil return line which I had to disconnect to gain access to the MP fluid fitting
Safety wired oil dipstick mount
Two of the ignition wires I connected. I need these connected so I can finalize my wire routing in the engine compartment