Just replaced that small curvy hose that goes from the rear of the block to the firewall, over the oil filter housing.

Does the hose actually rest on the top of the housing? Somehow that worries me that it will get too hot and melt the hose!

thanks wise ones...

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1983 300D- silver blue, tan leather, 205,000.
1975 Datsun 280Z. Stock, ready to restore.
1983 San Juan 23. Dry docked.

On my 123s, there's a large rubber grommet/doughnut that fits around the hose that sits on top of the oil filter housing thus protecting the hose. I could probably find the part # if you would like.

The hose should not touch the filter housing even without the "donut", on all og my W123 300Ds, the "donut" is in place, and it is touching the housing.

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Tony from West Oz.
Fatmobile 3 84 300D 295kkm Silver grey/Blue int. 2 tank WVO - Recipient of TurboDesel engine.
Josephine '82 300D 390kkm White/Palamino int.
Elizabeth '81 280E, sporting a '79 300D engine.
Lucille '87 W124 300D non-turbo 6 cylinder OM603, Pearl Grey with light grey interior


Various parts cars including 280E, 230C & 300D in various states of disassembly.

You might need to trim the end of the hose that attaches to the block. That should move it over enough to clear the housing.

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Never a dull moment at Berry Hill Farm.