Project: TerryS     -     Entry

Jul 26, 2023 3 spark plug wires Category: Engine
You wouldnt think something so simple would take so long, but here we are, living' the dream.

The challenge is that P-mag says you can't let these run together for more than 5" without the risk of inductive cross firing. combine that with the fact that these are pre-made to a fixed length and I stupidly eliminated about 1/2 my routing options by installing almost everything else on the back of the engine before I got around to these, and it took a while to devise a plan.

Anyway, these are 80% done, but it would have been a lot easier if I had done them earlier in the process. I'm going to have to relocated some sensor wires and stuff like that where they go through they engine mount but thats a problem for tomorrow.

Todays big challenge overcome is that Vans print is based on shielded magneto wires that can be run together, and they call for running both l/h lower plug wires and also the alternate intake air cable housing all through one adel clamp off the lower valve cover of cylinder 4.

I originally assembled it that way because its within the allowable 5" per P-mag, but the more I stared at it, the more eI hated it. I can see so much stuff that could potentially cause trouble on down the road with a claptrap arrangement like that.

Eventually, I ended up separating them via some zipties and sections of tubing. I also used the same arrangement off the oil return line of cylinder 4 that I did on cylinder 2. This gets that potentially abrasive cable housing out of the same clamp as a spark plug wire.

It looks much neater than what I had originally. Although I could fly it this way without problems, I'm going to buy some actual wire loom fittings from Jegs or someplace.



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