Before I junk my engine because of aluminum flakes in oil,and tick when warm.Why would it not tick when cold?

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

Thermal expansion?

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

when's the last time you changed the oil? could be getting thin.

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dtf
1994 E320 Wagon (Died @ 308,669 miles)
1995 E300 Diesel (228,000)
1999 E300 Turbodiesel ( died @ 255,000)
2006 Toyota Tundra SR5 AC 4X4 (115,000 miles) rusted frame - sold to chop shop
2011 Audi A4 Avant (165,000 miles) Seized engine - donated to Salvation Army
BMW 330 xi 6 speed manual (175,034 miles)
2014 E350 4Matic Wagon 128,000 miles
2018 Dodge Ram 21,000 miles

0 miles on fresh oil. Ticked after 10 minutes

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

What grade of oil do you use?

Now you are aware that the check valve in the oil filter housing could be bad? That may be your problem of the ticking?

Martin

Also, the cam may have worn one of the adjuster or both (Cam and Adjuster).
When cold the metal and valve play is to specification (no ticking, everything is tighter).
The Aluminium flakes may indicate a partial loss of lubrication in certain valve train areas.
After warming up, as mentioned before by Stretch, the metal parts are warmed up (hot), of course, and thereby expand in size (already, considered by the Design Engineer). Depending on the metal and it's properties, this may not be at the same rate. The valve play might get larger (unintended) and you'll get a ticking sound. A mechanical stethoscope might help in finding the one in question. If it is in the Valve train, removing the Valve cover and inspecting the individual valve springs and Cam Lobes, will show marks, if wear is the culprit.

Don't think that your brand new oil is changing viscosity that much.
The key is to find out why the wear occurred in the first place.
If so, then there might be a restriction in lubrication, a restriction in one of the oil bores, for example.

Like always, these are just my guesses.

Did the Oil pressure Gauge indicate a lower pressure as in the past or does it seem to be the same?

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Mostly, I don't know notin, I just know where to look.
I am looking back, to over 30 years in Electronics Design.
Electrons don't care if they move in a car, computer or relay!

95 W124 E320 M104.992 - Because, I love to repair, naaaah!
Over 221,000 Miles
Cheers,
Norbert

I've already bought engine can I sell the old one?

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

Have u pulled out the old out? Bayhas on the benzworld site he has a SL500, and few W140's with 104's in them. He is smart engine man...

The check valve in the oil filter assembly are known to fail, and they exhibit the ticking symptom on the 104 engine..

Martin