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Old 07-08-2006, 04:01 PM
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Join Date: Jul 2006
Posts: 174
Smile changing oil line from condenser in 81 300sd

faulty oil line...iu know i found problem is pulling it out...

you have to remove the brackets on the metal tubing and the inside one by the drivers side motor mount i cannot get to...its 10mm and i might need another tool...any ideas??

also have to remove both lines from the oil filter the top one...but cannot get the bottom one....

is there anyone that might have experience that can help thru this process?

lyle in san diego
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Old 07-08-2006, 07:24 PM
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Join Date: Sep 2004
Posts: 8,527
It helps if you have an oil cooler hose wrench. Buy a cheap 27mm or 1 1/16" combination wrench. Cut two "points" out of the box end (so that the box end can slip over the cooler line hard pipe), then cut the open end off so that about 60% of the "handle" remains on the box end. You will experience all sorts of aggravation getting an ordinary wrench on the lower filter housing hose fitting.
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Old 07-08-2006, 07:41 PM
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Join Date: Jan 2005
Location: Champaign, IL
Posts: 100
I've done the lower oil cooler hose, but don't remember having particular trouble with 10mm bolts. I do remember that they are all strategically located in hard-to-reach areas, for no apparent reason. I think I used either two small 10mm combination wrenches (or allen wrenches -- but I could be confusing that job with tranny oil cooler lines), and lots of swearing words.

To detach the hose from the oil filter housing you absolutely have to apply a counterhold on the hex nut that's between the hose and the filter housing. I was too lazy to run to the store to buy sufficiently large combination wrenches, so I used two adjustable wrenches, which is usually a bad idea, but got it done for me that time. I did have to use a handle extension (ideally that would be a piece of pipe, but I used large lug wrench) to get enough leverage though. Before you do this, do yourself a favor and disconnect all vacuum lines in the area, or be prepared to replace some -- you can guess how I know.
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