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-   -   Car goes to ANOTHER shop today (https://www.audiworld.com/forums/tt-mk1-discussion-9/car-goes-another-shop-today-1957428/)

PracTTical 07-25-2008 03:22 AM

Car goes to ANOTHER shop today
 
getting the radiator and cylendar head power flushed... While i have my slight doubts that it will actually help, it just might do the trick.


when i got home last night i checked a theory by stationary revving the car to 2.5k RPMs and watched the temp needle come down from one tick high, HVAC came down pretty consistantly from 103 or 104 to 99 or 98 as well... Mind you this is at idle, where previously my car was running uberhot.


So cloggage is now a potential threat, and i'm going to cancel my radiator/t-stat order before the morning's up, i want to see if a power flush indeed helps.


It would seem that this is a compound issue, that a blockage in the radiator is preventing coolant from flowing that way, and a leaky bleeder valve might be letting excess air in the system where pressures are low on the output side of the radiator.

Hot coolant, coupled with the potential air bubbles in my system COULD produce a problem of this magnatude. I noted that last time when the car was apart and put back together (hoses checked for blockage, then they topped the G12 off and bled it) the car ran normal for a day or so before returning to it's retarded state.


<img src="http://images15.fotki.com/v10/photos/7/7305/152444/coolant-vi.gif">
you can see here what i'm talking about, not letting coolant go through the radiator would make hot coolant circulate...

Babied the car again this morning, ran it up to temp, it stayed there for a moment, climbed up a tick and back down for a few minutes before just cruising all the way to 7/8s and reading 121 on the HVAC... blew the heater on HI for a few minutes and the temp dropped to 101 instantly (no temps in between)... strange? yes.. but it most definitely could be an intermittent blockage causing the coolant temps to spike.


i'm willing to invest my $115 to investigate this potential culprit.

resTTo 07-25-2008 04:31 AM

Colby.... assuming youve got blockage did they >>
 
check the impeller for the water pump ? (trying to follow your thread) Just thinking of what could have broken off and found its way to a small spot and caused some blockage

PracTTical 07-25-2008 04:33 AM

yeah, the impeller is 100% good...
 
i did note one fin missing when they removed the old pump so that might be causing my problems.

resTTo 07-25-2008 04:35 AM

thats it dude, where do you think it went ???>>>>
 
downstream and lodged into a crevice, need to do a power flush, have them look for the broken vane

PracTTical 07-25-2008 04:40 AM

i think it's a dead cat in my radiator..
 
i'm going to have them powerwash my radiator @ 600000000000psi.


should come out like this:

<img src="http://www.ewritermagazine.com/October%202005/wet%20cat.jpg">

resTTo 07-25-2008 04:41 AM

he he funny, good luck finding your problem

PracTTical 07-25-2008 04:43 AM

many thanks! hoping today is my last day of overheating
 
but i've hoped that before and gotten nothing.

BluHeaven 07-25-2008 09:05 AM

did you call Jason at black forest?

PracTTical 07-25-2008 09:13 AM

yup, we had a long discussion this morning
 
he was a huge help! thanks for the reference danni!


probably going to take it there next week if my flush doesn't fix anything this afternoon.

BluHeaven 07-25-2008 09:24 AM

ahhh... good!!!! and you're welcome


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