|
Xoutpost server transfer and maintenance is occurring.... |
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management |
|
LinkBack | Thread Tools | Display Modes |
#11
|
||||
|
||||
__________________
Motivation can change what you do, but inspiration can change who you are. --------------------------------------------------------- 2003 BMW X5 3.0i, Black Sapphire, 287,423 km and kicking! www.sam-medina.com My online graphic novel: |
Sponsored Links | |
|
#12
|
|||
|
|||
when you say top off, you are just filling so that the float rises to the top correct? if you fill it to the top of the expansion tank, the radiator cap will allow that extra coolant to overflow once it gets hot enough and you'll end up where you are supposed to be after a while. That's really hard on the cooling system though.
You might be able to rent a pressure tester from autozone for free. Then to test, fill the tank to the correct level, and pump it up to around 20psi and see if it holds. If it isn't holding pressure, look for the leak. The cooling system might need to be warm (hard to test while hot) in order for the leak to appear.
__________________
********************* Olympic Peninsula, WA, USA ----------------------------------------- 2005 Mini Cooper 100k, British Racing Green/Silver-Black 04/2002 4.6is 140k, Silver/Black-Alcantara *FOR SALE* 1989 325iX 270k, Diamond Black/Black 1984 318i 370k *SOLD* (First Bimmer) Honorable Mentions: '71 2002, '87 325, '90 325ic, '92 525it, '93 325i, '94 530i |
#13
|
||||
|
||||
I miss autozone! They don't have 'em here. Will see who rents tools here. Thanks!
__________________
Motivation can change what you do, but inspiration can change who you are. --------------------------------------------------------- 2003 BMW X5 3.0i, Black Sapphire, 287,423 km and kicking! www.sam-medina.com My online graphic novel: |
#14
|
|||
|
|||
When you said in your original post that the expansion tank seemed dry, do you mean it was empty, or that it was simply dry on the outside (in which case I gather you mean the tank itself appears to not be leaking)? If it were a simple case of your overfilling the tank, sure, the excess would be pushed out of the system, but it wouldn't empty the tank. Often a vehicle gets the hottest just after it has been run a while and then shut off. Pressure builds, and if there is a weak point in the system (like a weak o-ring joint on the side of the radiator), coolant is pushed out until things stabilize. I think that was my radiator's story. I had to remove that bottom plastic shield so I could look up to see where the leak was coming from.
__________________
2009 X5 3.0 2001 X5 4.4 - Sold |
#15
|
||||
|
||||
I meant that the outside of the expansion tank seemed dry, though the second time some coolant was on the outside... it's also almost empty. The leak only seems to happen when the tank is full.
__________________
Motivation can change what you do, but inspiration can change who you are. --------------------------------------------------------- 2003 BMW X5 3.0i, Black Sapphire, 287,423 km and kicking! www.sam-medina.com My online graphic novel: |
#16
|
||||
|
||||
I found the leak. Pinhole on the tank. Dealer couldn't find it, but will probably just swap in a new tank and change the hoses while I'm at it.
__________________
Motivation can change what you do, but inspiration can change who you are. --------------------------------------------------------- 2003 BMW X5 3.0i, Black Sapphire, 287,423 km and kicking! www.sam-medina.com My online graphic novel: |
#17
|
|||
|
|||
Guess that explains it only leaking when the tank was full.
__________________
2009 X5 3.0 2001 X5 4.4 - Sold |
#18
|
||||
|
||||
Yay, she's back, with a new tank and t-stat.
__________________
Motivation can change what you do, but inspiration can change who you are. --------------------------------------------------------- 2003 BMW X5 3.0i, Black Sapphire, 287,423 km and kicking! www.sam-medina.com My online graphic novel: |
Bookmarks |
Tags |
coolant, hose, leak, radiator |
Thread Tools | |
Display Modes | |
|
|
|