I was wondering temperatures on my -89 CTD, outside temperature effected lot to my trucks running temps.
Original gauge was swinging between second and fifth bar, depending the weather.
So I decided to change the tstat, new one is CNH packed ( I have worked with Maxxum Cases and I had one left)
Head was not machined, I grinded with template that was in tstas package.
Now my gauge is just over the first bar, around 15C outside.
Gauge was not swinging any, whole 25km is shows same temp, is this too low?
I also checked valve clearance and adjusted them, especially exhaust valves had too much.