Right out of the gate guys, I'm new to this forum.
Any help would do. As an O/O for 20+ years, I've owned my share of 60s. Absolutely love em.
But this '99 I just acquired has a Thermatic Oil Control Valve. Basically an Oil Thermostat in the housing of the Oil cooler. Never have I seen this, and neither has my ole time mechanic. And we've had MANY 12.7s, not to mention '99 models by the handful. Detroit said Some have it Some don't.
I just now got the cooler put back together with all new stuff. But, under advice, I DID NOT put the (Thermostat) back in.
No probs, so far. Should it operate any different than ones Without the thermostat?