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Old 07-24-2010, 07:22 AM   #1
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Join Date: Dec 2005
Location: Uk
Default 960 rad blew out

Parking up at work yesterday and just as I stopped a cloud of steam came out from under the hood, after a quick look it turned out that a blank had blown out of the radiator. I was very surprised to find that nothing is really holding this blank in place, it's just held there by the rubber seal. After re inserting the blank, filling up with water and bleeding the system all seems well. Just wondering if this is normal or should it have something holding this blank in place?, I'm gonna have to drain some water out the system again today so I can add some antifreeze and I don't really want this happening again.
Airbrush work Linky
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Old 07-24-2010, 12:22 PM   #2
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Join Date: Jun 2002
Location: S NJ, a suburb of Phila.

I use the screw in metal plug for an oxygen sensor screwed into the rubber grommet. That holds the rubber grommet more securely in place. The spot is for a temp sensor but when not used Volvo just puts a plastic plug in the grommet. It's a weak spot in the system that they never upgraded. If you buy a new radiator you can buy a Nissens brand which uses a screw in metal sensor and the problem is eliminated.
1982 242 turbo. 340k miles. Good stuff and lots of rust.
1993 245 Classic, 417k miles, enem V15. IPD bars and chassis braces. Simons sport exhaust from Scandix. sbabbs ezk chip. Been a good road warrior. Genuine Volvo rebuilt leaky M47.
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Old 07-24-2010, 12:55 PM   #3
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Ahhhh....thanks for that, I did wonder what the hell it was for. I will now try and find something to insert into it instead of the daft plug.
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Old 07-24-2010, 01:04 PM   #4
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Join Date: Feb 2007
Location: DALLAS

Dave hit the nail square on the head. Using an O2 bung works extremely well. Swing by the local exhaust shop and get one for cheap. And I thought I was the only one that ever used this technique!!
Used to have a few old Volvos...a couple even ran...

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