overheating...

[phreshkid]

Thanks for the help guys... Well i worked on my car today an after taking thermostat out an driving it car still overheated so im thinking that maybe is te water Pump what do you guys think? Also today i removed the Valve cover an notice that the inside of the Valve cover an the oil CAP have some kind of water an oil mixture it looks yellowish. But my oil looks clean also head looks pretty good... Ideas..?

This is bad.

[rlddlr53]

Take some pictures and post them of the oil. Hopefully you do not have a head gasket problem... but the yellowish mixture is not a good sign

Make sure you bled you system properly. e36 radiator with attached bottle?

[trackjunkie21]

You need a headgasket my friend, "yellow" oil is a huge no no.

[isra]

my oil is not yellow, it just has that mixture in the cap an the inside of the valvecover around the oil cap. im using a e30 late model rad, i hope is not the headgasket i dont feel like doing it lol... but then again i can upgrade to s52 :D

[Philo]

Sometimes condensation on the inside of the valve cover will cause a yellowish film on the oil cap. As long as it is minimal, and the cam tray and dipstick isn't showing any signs of mixed fluid, I wouldn't worry about it.

But then again, you are having an overheating problem.

[isra]

Well i Will change all my cooling system before i change the headgasket,its alot of work lol... My car runs fine idles 700-800 it just overheats.

[Philo]

I also recommend checking the temp with a thermal gun. My temp gauge reads red hot, but the engine is cool as can be.

[DesertBMW]

Well i Will change all my cooling system before i change the headgasket,its alot of work lol... My car runs fine idles 700-800 it just overheats.

I can tell you for sure that you got cracked cylinder head. Engine is consuming coolant. This is common problem and weak spot for M5x series engines.

[isra]

Will a crack head make the car overheat? Does it matter that my oil looks good?

[DesertBMW]

Will a crack head make the car overheat? Does it matter that my oil looks good?

Yes. Crack will be from one of the water passages to the intake valve seat, very hard to spot. Oil won't get contaminated.

Example here:

http://forums.bimmerforums.com/forum/showpost.php?p=20803923&postcount=14

[jrdeamicis]

I have a few spare heads at the shop if you need one.

[isra]

okay guys so my car is still overheating i change the waterpump,rad,thermostat,rad cap,hoses, an car still overheats..! i drove car with an without thermnostat, no difference car overheats in 5-10 min..
what i did notice is that the bottom heater hose on the firewall has a leak an i can see steam coming out of it plus the antifreeze in the ground. you guys think that can be my problem...? or should i start buying the headgasket..? lol PLEASEEEEE HEEELP!

[mr.vang]

pull out your oil dip and drip some oil on the hot exhaust manifold, if is sizzle then your oil is mix with water, if it smoke then its just oil.

[DesertBMW]

PLEASEEEEE HEEELP!

So I told you head is cracked and you still keep spending money on parts and engine still overheats

[isra]

So I told you head is cracked and you still keep spending money on parts and engine still overheats

Fuck! I dont want to change the headgasket lol... But i hate seeing my car in thr driveway full of dust!