It's already had one cap and was replaced by another from the dealer. Not sure this is the prob, but will test (again) this weekend. Don't do well in cold!

john

On Wednesday, January 16, 2008, at 09:47PM, "Edward Maglott" <emaglott@buncombe.main.nc.us> wrote:
>That's weird you are getting bubbles in the overflow tank.  That
>would mean the pressure cap on the coolant tank is releasing.  Could
>it just need a new cap?
>Edward
>
>At 09:13 PM 1/16/2008, John Runberg wrote:
>>Slowly have been playing w/ a 90 GL that's had a shload of issues.
>>We're down to "hobby" status on this one as no-one in their right
>>mind would keep fixing things :)
>>
>>Back-story:
>>Have replaces a series of failed parts located by observation
>>(coolant leaking, etc...) - radiator, some hoses new and some
>>reattached, main coolant and overflow tanks + sensor.
>>
>>Situation:
>>Consistently have been getting air into a properly bled system (by
>>list procedure, Bently, two separate specialty shops). Has had
>>pressure test done & system holds pressure with no leaks visible -
>>HOWEVER smell says there *might* be a small leak @ rear heater core
>>(have not dug in quite yet). Amount of air can be several seconds
>>when front bleeder is opened after a 10m drive.
>>
>>Latest:
>>Noticed steady stream of air bubbles in overflow tank (behind
>>license plate) yesterday. At idle, 2-3 bubbles per second. This is
>>on a (nasty engine rebuilder) engine installed by PPO perhaps 30k ago.
>>
>>Opinions?
>>
>>As mentioned, we're into hobby status here. $$$ will be spent first
>>restoring the Westy, but hate to drop the investment in this
>>bottomless pit :) so keep pluggin on. Heads? Reseal or replace? Pull
>>'em and find out? Have talked to Hans and Karl about engine
>>conversions, but just want to locate this prob first.
>>
>>thanks,
>>
>>john
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