The last few days, the Van has been running a little hotter than I'm comfortable with. After 10 minutes of trouble shooting, here's what I've determined so far.
I'm fairly certain that there are:
No leaks.
No coolant loss.
No bubbling.
Water pump shaft has no play.
Belt is okay and not loose/ slipping.
Ign timing within specs.
It's possible that:
There's blockage within the (original) radiator.
The thermostat is faulty.
However,the upper radiator hose is hot and the lower hose is warm (not cold).
I looked for the Bill Maley manual to determine the direction of coolant flow, but it's now gone. My logic and experience tell me that the Van has a sticking T-stat based on the symptoms, but the reversal of hot and cold hoses has led me to post here.
Can anyone confirm the direction of coolant flow? Has anyone here experienced these symptoms?