burping the system?

[kamikaze]

I think I am having the same problem as someone else on this board my car keeps overheating and I am on the second thermostat and it seems to have gotten a little better but is there and easy way to get that air out of there?

[overkill]

On the "S" there is a bleed screw on the coolant flange thats bolted the the head. If yours has one,... run your car until its at normal running temperature and then open it just a bit with pliers or something. Keep doing that until you see the air stop coming out. You'll see nothing but coolant shooting out. After you do that there should be very little air left in the system if any at all.

[924Sman]

Helps to raise the front end up when bleeding as overkill said. Sman

[Brando]

Overkill is it the same on 1983 models?

[overkill]

Originally posted by Brando
Overkill is it the same on 1983 models?

That I dont know. Sorry.

[kamikaze]

I dont see any bleeder screw on the head. but thanks for the tips..

[Gordon Rankin]

The bleeder is not on the head itself but hopefully in the 1" hose going to the top of the radiator to the top of the block. If there is no bleeder, you need to purchase the Bleeder hose or retrofit it to the later metal elbowed bleeder. There needs to be some way to bleed the system. A good bleed should take about half an hour (---> with the heater controls turned on - not the fans but the heater valve itself) Kamikazee, what year is your car?

[overkill]

Dude, bleeder screw is not on the head. It's on the coolant flange(elbow) that bolts tooooo the head. See if your car has this flange or elbow and then look to see if you have the bleeder screw. I'm sure you do.

[kamikaze]

it is an 83 2.5ltr. so when I bleed it it should take half and hour with the heater on full blast and after all the air has come out coolant will start to come out? that is how I know it is done? If I do have to retrofit it what does that cost$?

[overkill]

It's not going to take a half an hour,... probably 15 - 20 minutes at the most. Once you see hot coolant gushing its way through the bleeder screw your done. Just use gloves with pliers, that shizz is hot. Before you go retrofitting anyting look for the bleeder screw thats probably all ready there.

[924Sman]

Can some one post a pic of the bleeder for Kami so he can see where it is? Sman

[kamikaze]

yea if someone can get a pic or a diagram that would be helpfull. explain one more time where I can find this bleeder? it is by the upper hose going to the radiator?

[kamikaze]

yea if someone can get a pic or a diagram that would be helpfull. explain one more time where I can find this bleeder? it is by the upper hose going to the radiator? also when do I do this when it is cold. when it is at running temp?

[tclyder]

Where the upper radiator hose connects to the elbow on the engine block there is a bleeder screw.

I did't like the idea of just opening the screw and letting the coolent splash all over so this is what I did.

I believe the bleeder screw has a M10 metric thread. So I went to Pep boys and looked for bleeder valves used on brakes. I bleieve the one I bought ($1.25) was for a maxda rx7 (It was blue in color)and it had a M10 thread.

Next I bought some airline tubing from a pet store to fit on the bleeder valve - Home depot sells the tubing also.

So here is the procedure.

1. Make sure the car is off and the heater in the on position
2. Remove the bleeder screw and replace it with the bleeder valve you just bought. Do not over tighten!
3. Push about a 2-3 foot piece of airline tubing onto the valve.
4. Take a clean empty milk container or any other plastic container and place the airline tubing into it.
5. Remove the radiator cap.
6. Loosen the bleeder valve.
7. Now take a small vacume (I used a small orak) and I took the hose from the vacume side removed it and placed it on the blow side. This is real important!
8. My vacume's hose O.D. is approximately the same as the I.D. of the hole where the radiator cap mounts to.
9. Place the hose where the radiator cap mounts to and turn it on.
10. The vacume now blows the air into the overflow tank thus pushing the coolent through the system.
11. In a matter of seconds you will see coolent and bubbles coming through the airline tubing into the plastic container.
12. I let the vacumn run untill it was all coolent coming through.
13. Then I shut it off - removed the bleeder valve and replaced it with the bleeder screw.
14. I re-added the coolent back to the overflow and capped it up.

It was real easy and the car has run great since then.

Tom.

I have a 1985 early 944

[FRANKYDOOM]

there yaa go its to the right with the white bit around it - i think lol

[todwic]

Originally posted by Brando
Overkill is it the same on 1983 models?

aye