If you are going to replace the entire Hose assemblies one of our member suggested that the to prevent the possibility of the threads from being stripped off (which happened to me) you could cut a slot lengthwise across the Nut (see the picture) and stick the blade of a screwdriver in to that slot, twist and spread the nut apart. Or I suppose you could cut a slot on each side and pry off the entire nut.

The job would be done with a generic dermel type tool and a small 1 inch cutting disc.

I don’t recall if he actually did that or not but no one else has tried it that I can remember reading.

Note that the hose line nuts don't seal on the threads but on the tapered end face of the nipple.

On the oil filter end to hold the fittings between the Oil Cooler Line Nut and the Oil Filter Housing you will need to thin a wrech head unless you happen to have one that fits.

I used a large crowsfoot type wrench on a breaker bar to get at the Hose Nuts on the Oil Filter end of the Hoses.

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84 300D, 82 Volvo 244Gl Diesel