VCCA Home Forums TECHNICAL - 1945 AND EARLIER 1929-1932 1929 Temp Update

my temp sensor on my 1929 is not working, and found Gary W found one, it is a C&P Automotive "Billy Possum"

in the meantime i picked up a mechanical Temperature Gauge to run to monitor the temps. I purchased one from Speedway that did 100-260F however when i bench tested it the temps were 20-30F off. send it back and they sent a replacement, bench tested and it was even worse. 30-40F off. Finally went out and got an AutoMeter 120-240F and it is nearly spot on !! bench testing was done with a pot of water and a standard thermometer and a digital laser temp gun. going from 100-220F about every 10F.

Installed the AutoMeter in the standard head location where the 1929 Temp Sensor goes, as it is a standard 1/2" NPT port. ran tube out away from engine, down the side along where the inside rim where the fender lip runs, then up through the floor with the wire bundle, then clamped the gauge next to the steering column.

did a test run....

ambient temp was around 80F clear sunny, low humidity.

drove approximately 5.5 miles, 25-30 MPH, back roads, but lots of stop and go.
car warmed up quickly to 140F before leaving (approx 10 minutes idling)
drove around and and few miles in was up to 180F temp stayed around 180F when moving 25mph, stopping and going bumped up to 190F and pushed near 200F.
when pulled in drive and shut off, temp creeped up to 210F (Heat Soak)