Flushed away

Hectorchadwick · 07-02-2009, 01:22 AM

I am about to tackle what I think is going to be a tricky mantenance job. The "Dreaded" Radiator flush......humm what are these little hoses for again?

Any hinters to make this a neat job?

I own a 1987 MR2, Black, I call it "Chadster"

goixoye · 07-02-2009, 06:54 AM

Start here: MR2 Wiki FAQ - MKI:Engine Coolant/Anti-freeze browse

The Haynes Manual also has a procedure that includes bleeding the coolant out of engine block. To me that bleed cock is impossible to access in a car with A/C. Other people simply elevate the rear so everything flows out the front.

tksmr2 · 07-02-2009, 03:28 PM

I don't see why this job is such a big deal.. Heck the hardest part is taking off a few underbody panels. The rest is draing from the drain points, running a water hose to the radiator fill cap, and run that water through the entire system, until it all comes out..

you will have to tilt the car on stands a bit to get all the old coolant out, and water when you flush it..

Then, fill it with 50/50 mix of Toyota Red/Distilled water. Bleeding the system is easy as well.

And, get a new thermostat, and gasket while you are at it..

I've done it 2 times on my MK1, and once on my MK2.. it's not too bad.

mr2tim · 07-03-2009, 10:30 AM

Here's the 3 common points the Big Green Book refers to to bleed air from the system.

I would personally suggest if you have a air bleeder on the top of the radiator on the drivers side rear that you open it up and flush water thru it also. These cars have a tendency to accumulate black gunk on the top of the rad on the side opposite of the inlet at the top. At least both my S/C cars tend to do this?

Tim

07-02-2009, 01:22 AM	#1 (permalink)
Hectorchadwick Some Skills Join Date: Jun 2009 Location: Los Angeles Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Flushed away I am about to tackle what I think is going to be a tricky mantenance job. The "Dreaded" Radiator flush......humm what are these little hoses for again? Any hinters to make this a neat job? I own a 1987 MR2, Black, I call it "Chadster"

07-03-2009, 10:30 AM	#4 (permalink)
mr2tim SUPERcharZed ToyZ RacZer Join Date: Mar 2008 Location: South Florida Posts: 690 Thanks: 2 Thanked 41 Times in 38 Posts My Google Map iTrader Rating: (2/100% )	Here's the 3 common points the Big Green Book refers to to bleed air from the system. I would personally suggest if you have a air bleeder on the top of the radiator on the drivers side rear that you open it up and flush water thru it also. These cars have a tendency to accumulate black gunk on the top of the rad on the side opposite of the inlet at the top. At least both my S/C cars tend to do this? Tim Attached Thumbnails

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

07-02-2009, 06:54 AM	#2 (permalink)
goixoye Worthless Join Date: Jun 2008 Location: Roanoke, VA Posts: 99 Thanks: 1 Thanked 2 Times in 2 Posts iTrader Rating: (2/100% )	Start here: MR2 Wiki FAQ - MKI:Engine Coolant/Anti-freeze browse The Haynes Manual also has a procedure that includes bleeding the coolant out of engine block. To me that bleed cock is impossible to access in a car with A/C. Other people simply elevate the rear so everything flows out the front.

07-02-2009, 03:28 PM	#3 (permalink)
tksmr2 No Skills Join Date: Apr 2006 Location: South Western PA Posts: 392 Thanks: 6 Thanked 11 Times in 10 Posts iTrader Rating: (1/100% )	I don't see why this job is such a big deal.. Heck the hardest part is taking off a few underbody panels. The rest is draing from the drain points, running a water hose to the radiator fill cap, and run that water through the entire system, until it all comes out.. you will have to tilt the car on stands a bit to get all the old coolant out, and water when you flush it.. Then, fill it with 50/50 mix of Toyota Red/Distilled water. Bleeding the system is easy as well. And, get a new thermostat, and gasket while you are at it.. I've done it 2 times on my MK1, and once on my MK2.. it's not too bad.