The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Bubbling coolant 700 1990

posted by  someone claiming to be Onkel Udo on  Sat Jul 16 03:39 CST 2005 [RELATED]

I have a bit of a stumper that I have not seen before. I have coolant in my reservoir that looks a bit like foam from dishwashing liquid. This is a 1990 760 turbo wagon with 240K.

My first thought was a blown head gasket, but I have none of the normal symptoms. There are no signs of coolant in the oil, no signs of oil in thecoolant, no signs of coolant around the head gasket and none of the sparkplugs look steam-cleaned. I have not done a hydrocarbon test on the coolant yet because my strips were contaminated. Compression was even across the cylinders when I had my post-purchase inspection 14 months ago.

The car has mysteriously lost about a gal of coolant over the 14 months that I have owned it. The radiator was new when the car got repo'ed (date of the receipt was 6/2003 and the paper tag on the rad has a manufacture date of 2002).

My thoughts are leaning toward some sort of leaking seal in the turbo (Mitsubishi). Would this make any sense? Not knowing the architecture of the cooling passages in the turbo I am thinking that some pressurized air could be leaking past the seal causing the foaming and some coolant could be sucked into the intake under vac.

Any suggestions are welcome.

Thanks,

Onkel Udo






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.