Park on a hill with the Rover front end up. Heat on high, let it idle, squeeze your hoses and unscrew the bleeder in the T fitting.


I have been thinking about making an adapter for the heater core lines, with a bleeder of course. This accompanied with the other bleeder would be the only solid way to ensure the air is out.

 

What is the most effective method for flushing out the cooling system?

 

I agree that parking on a hill might help bubbles rise but I believe there is no need to put heater on high. Water flows through the heater core at all times.
With that said having the temp all the way up and the fan on low helps to make sure hot water is infact flowing through the core. If the fan is on high it'll actually take longer for the engine to warm to temp.

 

 

 

Alot of misinformation I ruined a motor by not bleeding the system right.

 

A. How so?


B. The Rover book is wrong.


C. The bleeder on the hose in your pic has been replaced by a T fitting above the alternator.


D. When we drive our rover and its 10 degrees outside with the fan on high our engine temp actually goes down. Good thing we don't need the fan on high.


E. Constantly clipping and unclipping that hose into that bracket on the battery box will break when the hose gets stiff from age. That hose is approx. $36 at the dealer.

 

If you feel cool air on a warmed up truck its not flowing well...having the heat on helps you know its flowing better. Having it on high and maintaining that hot temp is ideal. You can have a little flow on low and feel heat...even with air.

 

The rover book show a t fitting with a bleed screw

 

Sure...but it also shows that dastardly hose. Believe it or not, there are some people still running that hose. I looked at a rover today with it on.


The rover at the junkyard today had that hose on it, blown apart.
The rover book is still wrong.