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Old 08-08-2008, 11:20 AM
Alastair's Avatar
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Join Date: Mar 2002
Location: South Wales U.K.
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OM-616/7 chain lube source...?

In the process of re-building a 617, and had a thought...

Exactly Where does the chain get its oil supply from....?

Is it just 'splash-and-dash' or does it have some squirter somewhere Ive not discovered...?

Alastair AKA H.C.II South Wales, U.K. based member

W123, 1985 300TD Wagon, 256K,
-Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.

W114, 1975 280E Custard Yellow,
-Great above decks needs chassis welding--Really will do it this year....
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Old 08-08-2008, 04:14 PM
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Location: Long Beach,CA
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While looking at the diagram on page 2 of the timing chain tensioner they show the oil going in and 2 places where the oil goes out. One of the outlets looks goes parallel to the plunger as if it is made to be a spray jet. The other outlet is at the eng of the plunger housing could also act as a hole to let the oil lubricate something.
I saw this myself as I made a mistake and bought a new Timing Chain Tensioner on Ebay before I knew the Turbo and Non-turbo engines had different ones. So I had the real part to compare with the diagram.
It may get a lot of lubrication from is the oil coming out from the Fuel Injection Pump Timer. I would think that ounce the oil is done lubing the Timer/Timer Bearing it gets flung out onto the chain.
Probably the same thing happens with the Front Camshaft Bearing. Ounce it is done lubing the Camshaft Bearing the oil will come out onto the back of the Camshaft Drive Gear a probably gets flung with quite a bit of force from there.
Likewise the oil coming out of the Front Main Bearing should help to lube the chan and Crankshaft Gear.
84 300D, 82 Volvo 244Gl Diesel

Last edited by Diesel911; 08-08-2008 at 10:01 PM.
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Old 08-09-2008, 04:46 AM
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Yes, it gets oil coming out of the injection pump.
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Old 08-10-2008, 12:59 AM
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Location: Long Beach,CA
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In the part of the pic between the Chamshaft Gear and the Chamshaft Bearing Tower there is an Oil Supply Tube that appears to have a oil spay hole in it. This is on a Turboed engine; see if yours also has a hole there.
84 300D, 82 Volvo 244Gl Diesel
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