TS185 ER compression ratio
Hello Hubbers,
I have a question about the compression ratio on my 1982 ts185. Stock it is 6.2:1. If atmospheric pressure is approx 14.7, i should expect to receive approx 91psi from a cylinder compression test, right?
When i test it though, i actually get 125psi. I've tested the compression gauge on an air compressor (it monitors the pressure leaving the tank), and it appears to be reading accurately. That would suggest that i have a compression ratio of approx 8.5:1.
Am i calculating this correctly, or am i missing out on something (a brain perhaps :confused1
Cheers, John.
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