Grommets (firewall forward)
Posted: Tue Aug 06, 2019 7:42 pmAfter having to cut my 5th and 6th test flights short due to oil pressure readings fluctuating wildly low, I have traced the problem down to the rubber grommets I had used to protect my oil pressure sender wire(as well as CHT wires) where they pass through my Aerovee engine baffling. The grommets had basically come apart in 2 halves and the wire was chafing against the baffle hole. I had sourced the grommets both from Radio Shack (yes they were still open when I did my FWF) and Aircraft Spruce, and couldn't say for sure which ones I used.
What sort of grommets have held up over time in the hotter pars of the engine bay?
What sort of grommets have held up over time in the hotter pars of the engine bay?