Motor running hot

[1968CHEVYC10]

Finally got my her to start few days ago. Anyway today I took it for a test drive probably about ten minutes or so, and when I got back the was a good amount of smoke coming from the engine around the exhaust manifold, and it seemed to be pretty hot. There was a small leak around the lower coolant hose but the the coolant was only about 2 inches below the cap and it wasn't bubbling over. I just changed the oil and coolant today, so it had plenty of oil and wasn't leaking. One thing I noticed and thought might be an issue was that the oil cooler lines were not there and the holes capped off. Did these motors even have that? the motor is a 350 probably an early 70's.
Thanks for the help yall.

[GASoline71]

By oil cooler lines... do you mean the transmission cooler lines that run to the radiator?

Gary

[68gmsee]

You didn't say whether the temp gauge showed hot or normal so I'm assuming that radiator temp was not your concern. Smoke on the exhaust manifold is fairly normal if the engine has been worked on and there is oil or solvent residue on it. However, be sure and check to make sure your valve covers aren't leaking somewhere. You may need to run the truck longer to burn any solvents or oil residue off.

There was no engine oil cooler on these trucks unless someone added one afterwards. They did have an automatic transmission fluid cooler on the radiator, though. You probably have an automatic trans radiator.

[1968CHEVYC10]

Originally Posted by GASoline71

By oil cooler lines... do you mean the transmission cooler lines that run to the radiator?

Gary

Well I thought there were spots for both, two on each side. But I guess I don't need them.

[1968CHEVYC10]

Originally Posted by 68gmsee

You didn't say whether the temp gauge showed hot or normal so I'm assuming that radiator temp was not your concern. Smoke on the exhaust manifold is fairly normal if the engine has been worked on and there is oil or solvent residue on it. However, be sure and check to make sure your valve covers aren't leaking somewhere. You may need to run the truck longer to burn any solvents or oil residue off.

There was no engine oil cooler on these trucks unless someone added one afterwards. They did have an automatic transmission fluid cooler on the radiator, though. You probably have an automatic trans radiator.

Yeah Forgot to mention my temp gauge doesn't work, that or the engine never got warm, which I doubt. I was partly wondering if some of the smoke was just old grease and oil burning, sounds like it is. Thanks for the help Yall!!