I purchased a '91 DT55 with very few hours and also purchased a 0-30 psi water pressure gauge and would like to install. I was contemplating installing it with a "T" in the tell-tale hose but when inspecting the engine I see a small pipe plug (~1/4") on the top of the cylinder head just to the right of the thermostat cover. Would this be where an adapter could be threaded in for the gauge hose to connect? I have seen installation kits for the newer DF models but nothing is listed any longer for a DT. I have Googled and also looked in my service manual but cannot find it referenced anywhere. You can see it in the manual drawings.
92.6 KB Views: 30