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Debris in Cooling System 

 

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 Post subject: Debris in Cooling System
Posted: Fri Dec 28, 2012 6:12 pm 
Getting Side Ways
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Ride: EF XR6 Wagon, AU2 XR6 VCT

Power: 148 rwkw

Location: Auckland
New Zealand

I bought my AU2 XR6 two years ago with 210,000 kms on it. Didn't get any receipts or service history with the car, but do know the previous owner had it serviced by the local Ford dealer. I did a basic cooling system flush when I bought it, and refilled it with at least 25% Prestone coolant.

The radiator started a slow leak a few months ago, so I replaced it with a new one yesterday at 236,000 kms. Out of interest, I did a thorough reverse flush of the old radiator (out of the car) to see what it contained. Below is a sample of its contents.
Attachment:
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PC280265-001.JPG [ 347.41 KiB | Viewed 51 times ]


To give a sense of scale, the largest piece is about 2 cm long. It looks like some rusted cast iron and some scale. But I was surprised by the amount of debris. Should I be concerned? Or is this normal?

 

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95 EF XR6 wagon, 17" FTRs, DBA, QFM, KYB/Koni, AU block, ported EF head, SS Inductions, Territory intake, MLS gasket, milled, Franklin RH24B cam, Coby headers, no cat, Tickford 2.5", 2800rpm stall, J3 chip

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 Post subject: Re: Debris in Cooling System
Posted: Fri Dec 28, 2012 6:28 pm 
Technical Contributor
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Ride: EF Fairmont

Location: Campbelltown
NSW, Australia

If it was the original radiator, it would be casting and machining residue in the water jackets from new.
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 Post subject: Re: Debris in Cooling System
Posted: Fri Dec 28, 2012 6:50 pm 
Parts Gopher
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Age: 45

Posts: 86

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Ride: AUII wagon 4.0L, BA 4.0L hack

Location: Flinders View
QLD, Australia

flush it again mate, its remnants of old internals of ya old radiator and some casting from inside ya block, I would even flush out your heater core, I know this time of year, ya heater don't get used but you want it ready for the cold months ahead.

 

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 Post subject: Re: Debris in Cooling System
Posted: Fri Dec 28, 2012 7:08 pm 
Getting Side Ways
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Id pull the thermostat out and power flush it.

If you have access to compressed air, you put a hose and an air blower nozzle in the thermostat housing, then turn the water on full and give short sharp bursts of air. You'll be amazed at what comes out.

 

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 Post subject: Re: Debris in Cooling System
Posted: Fri Dec 28, 2012 10:15 pm 
Getting Side Ways
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Posts: 836

Joined: 1st Apr 2005

Gallery: 4 images

Ride: EF XR6 Wagon, AU2 XR6 VCT

Power: 148 rwkw

Location: Auckland
New Zealand

Thanks for the good advice guys. It seems a full system flush is definitely in order. I can't imagine that bits that large will do much good going through the water pump or thermostat. When I bought the car, the thermostat was stuck open; I think I know why now :) . Cheers!

 

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95 EF XR6 wagon, 17" FTRs, DBA, QFM, KYB/Koni, AU block, ported EF head, SS Inductions, Territory intake, MLS gasket, milled, Franklin RH24B cam, Coby headers, no cat, Tickford 2.5", 2800rpm stall, J3 chip

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 Post subject: Re: Debris in Cooling System
Posted: Sun Dec 30, 2012 7:32 pm 
Oompa Loompa
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Age: 6

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Joined: 24th Dec 2012

Ride: EF falcon

Location: shepparton
VIC, Australia

Fit a coolant filter or sock on/into the radiator hose
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 Post subject: Re: Debris in Cooling System
Posted: Sun Dec 30, 2012 10:09 pm 
Getting Side Ways
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Age: 26

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Ride: S1 eb 5speed

Location: Coffs Harbour
NSW, Australia

TOMZY wrote:
Fit a coolant filter or sock on/into the radiator hose

I'd give it a good flush first. Dont want a heap of s**t blocking up a radiator hose
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 Post subject: Re: Debris in Cooling System
Posted: Thu Jan 03, 2013 7:07 pm 
Oompa Loompa
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Joined: 24th Dec 2012

Ride: EF falcon

Location: shepparton
VIC, Australia

^^^ of course!
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