New user
Posts: 18
Location: cardiff | Hi
My son has a Rover 100 1.1 8v Multi point injection. He has had it for 3 years, only 24k miles on it (15k when he bought it) and has had no trouble with it at all.
Last week it suddenly started overheating, and blew all the water out of the header tank. He shut the engine off immediately the temperature gauge rose.
I had the car recovered to my home to have a look. I first checked the oil, as I know the head gaskets on these are poor. Oil was crystal clean, result!
The water that was in the header tank was clean also, no sign of oil film. I filled, and bled the system, and started the engine. Engine started and was running fine, no spluttering etc (which again makes me thing the head gasket is fine). Engine started to warn up as usual. I was squeezing the hoses to ensure water in them, and you could see the header tank level rise and fall. Engine temp continued to rise until fan kicked in. Radiator was cold, so appeared to be a faulty thermostat.
Drained the system and flushed the radiator with a hose until clean water ran, although it was very clean to start with. I also ran the hosepipe through the heater flow and return pipes, and any other I could access, all good flow through them.
I then changed the stat, with an original from Rimmers (88 degree temp). When the system was empty, I also blew down the jiggle valve which was free flowing (so that looks OK). I carefully, and slowly, refilled the system, following the correct bleeding procedure (and following advise from another post), removed the header tank and lifted it to ensure the heater bleed screw flowed with coolant. This worked well, so once tightened back up and relocated the header tank and filled to the max mark.
started the engine, but the same systems, engine gets hot, fan cuts in, but radiator is cold. Heater is blowing red hot air, so no airlock there, and the pump must be working OK to circulate the water to the heater. Refilling the system only took c2/3 litres, where the Haynes manual states 4.5 litres?
My next thought is that there maybe a waterway blocked in the block/cylinder head, which would be a nightmare, or could it still be an airlock somewhere?
Any thoughts/ideas greatly received as its getting me annoyed now!
Many thanks
Jeff |
Rover 100 Overheating!
