I pondered that very same question for a long time, before installing a simple, inexpensive Westach CHT setup, with one meter and a switch that selects between the 4 cylinders. I also purchased a similar (4 probes and one meter, with a switch to select the cylinder being monitored) Alcor EGT setup, which I have yet to install. For me, having access to each individual cylinder is important, as a troubleshooting and diagnostic aid. Last year I spent 2 months troubleshooting a low RPM problem, eventually traced to a broken cam follower on the intake valve of cylinder 1. I did not have the CHT setup then, which would have quickly pointed to cyl 1 as the source, and saved me a lot of time wasted checking elsewhere (carburetor, etc.). Downside: I found my Westach cylinder CHT selector switch to be sometimes intermittent, however it is not expensive to replace.
Eliacim N87071 61TE & GKY Texas ----- Original Message ----- From: aflora55 To: [email protected] Sent: Saturday, December 15, 2007 11:49 AM Subject: [ercoupe-tech] CHT/EGT GAUGES I just purchased my First Ercoupe N94748, a 1947 415 C/D. It has a 0 SMOH C-85-12 with the 0-200 STC and new ECI cylinders. The engine was by Premium Aircraft LLC - Ft. Smith. I would like to have CHT and EGT gauges installed but find gauges from under $100 to over $1000, that monitor One cylinder or all Four cylinders. What are the correct gauges to install?
