Thermostat not opening bottom hose cold
Posted: Sat Mar 18, 2023 11:20 pm
Hi All,
New member but I've been reading the forum for awhile. its a great source of knowledge. I am after a bit of help if I may.
I have bought a project bongo that has coolant issues, engine appears to run ok a little smokey on start but otherwise ok.
It gets hot whilst bleeding in the garage, I have watched the videos on bleeding and tried a few times. I have fitted a genuine Mazda water pump today and Thermostat and it is still the same. I've had the thermal camera on it also and the stat housing is getting hot but it doesn't seem that the stat is opening. The bottom hose and even the pipe directly below the stat is cold, the hose on the drivers side (Top engine hose) appears to be emptying and requires squeezing to get hot every so often.
The previous owners were driving it about with no water in I believe so I am now suspecting possible gasket/head damage just thought I'd ask here if anyone had anything else to try before I start stripping the head off tomorrow.
Thanks In advance
Gaz
New member but I've been reading the forum for awhile. its a great source of knowledge. I am after a bit of help if I may.
I have bought a project bongo that has coolant issues, engine appears to run ok a little smokey on start but otherwise ok.
It gets hot whilst bleeding in the garage, I have watched the videos on bleeding and tried a few times. I have fitted a genuine Mazda water pump today and Thermostat and it is still the same. I've had the thermal camera on it also and the stat housing is getting hot but it doesn't seem that the stat is opening. The bottom hose and even the pipe directly below the stat is cold, the hose on the drivers side (Top engine hose) appears to be emptying and requires squeezing to get hot every so often.
The previous owners were driving it about with no water in I believe so I am now suspecting possible gasket/head damage just thought I'd ask here if anyone had anything else to try before I start stripping the head off tomorrow.
Thanks In advance
Gaz