I searched and haven't seen this option addressed on the forum yet. Instead of replacing your noisy lifters you can rebuild them. The MB lifters are mechanically identical to these VW lifters.
https://youtu.be/ySf0r8GGMOY

One of my OM603 lifter fully disassembled.

The oil that was trapped in the lifter was way move viscous than the dirty oil that I usually drain out of the engine. Almost looked like sludge. I didn't find as much varnish as in the video but the Berrymans cleaned them out nicely.

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CENSORED due to not family friendly words

Great find. My 190D needs to have the head gasket done as it is starting to seep oil and I wanted to service the head while I was doing that. This will save me quite a bit.

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Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.

Oh no! Stretch found more things to take apart. Jk

I've been wondering if you just pulled the valve cover and poured some detergent on them. Maybe cycle it over kinda like a soak. I almost had to pull some on a different manufacturer (don't judge) gas motor and the book said 15 hours.

I ended up just replacing mine as well. I blew out each oil oil inside the head, and ended up blowing out the cam journals as well. Everything was clear. Gsxr had pieces of his failed headgasket get pumped up into the galleries for the cam and lifters, starving them for oil and making them clack. Not good.

This is a very good way to save some money.

Uh uh. The internals of the lifter get filled with old oil, varnish, and they get stuck. The goop makes it impossible for the internals to keep pressure. You need to open them up to clean them out. Just pouring something over the top of them will do absolutely nothing.

The lifters on the 601/2/3 are right on top of the valve stem, under the cam lobe. The lifters on a 4L Jeep Cherokee engine for example, are in the block above the camshaft. HUGE job to replace those compared to this. So 15 hours might be correct for other designs, but not this OHC design.

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'84 190D 2.2 5MT (Red/Palomino) Current car. Love it!
'85 190D 2.2 Auto *Cali* (Blue/Blue) *sold*
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Guess I should have messed with mine! I was frustrated with them in my 603 so I just bought a set of them, cost me $200 iirc.

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87' 300D, Currently undergoing an OM606 swap/build! SUPERTURBO!!!
03' 2500HD Dmax + goodies!
82' 300SD, parting out!
93' 300TE 4matic, parting out!
83' 240D Project Cheap Drive
89' 300E, parting out!
74' Datsun 510 wagon
88' RX7 10thAE, 13B track car build soon

Skippy~ As for perception: Drive what you like and can afford. Those who don't like it can supply vacuum to one of your components. LOL

If you need parts, I have some!

Probably better with the hours.

Nice post. I wonder if the 606 lifters are rebuildable as well, I may be rebuilding mine if that is the case. As I think I have a bad lifter in my '99

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k

Yeah far fetched. Lol. But maybe worth a try. If you can break that stuff up with a solvent, with time they may flush out. On a POS, I would try it before they fully collapse. Some people have had success. But this is outside Mercedes we're talking here.

But they say that hole in the lifter for oil to come in is the most precisely machined part of a motor.

Lots of different motors out there. This is DOHC with similar design, 15 on the book. But in order to get the belt off, to get the cams out, you have to remove the crank pully. Can of worms. Then here's the vvt system.

Granted, 15 hours on the book is probably a lot less in real life. Still not fun.

With any lifter, the only difference you will find is one or two springs inside. Always one for the check valve, but there may be a secondary to lift it up before pressure builds.

Unless you get into exotics. Then who knows.


All and all, I think I would replace if possible. Unless it's a junker. Then I try a flush, until it fully collapses.

Just oil weights and types can quiet them down.

I would rather adjust valves. Lol. I don't like them. Not to mention that you get a lower redline with hydraulics, and if you go over, you are going to over pump it. If you don't shut it down, you can interface the valves into the head

When they are sunk in with pushrods, they make a tool to extract them. It can be easy, on most motors. If I had a jeep that needed engine work I would pull it and put something else in. Jk.

That's a myth. There's no way for that to happen. "Overpumped lifters" is an old wive's tale.

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'84 190D 2.2 5MT (Red/Palomino) Current car. Love it!
'85 190D 2.2 Auto *Cali* (Blue/Blue) *sold*
http://badges.fuelly.com/images/sig-us/302601.png
http://i959.photobucket.com/albums/a...0/sideview.png

I sorta wonder if you could disassemble and clean the timing chain tensioner. Aren't they hydraulic as well?

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Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.

Oh trust me. It can happen. And your auto shop teacher will get really upset as well. Lol. I was 16.

But I mean that's on a motor pushing 800 horsepower. Probably unlikely in a driver.

I've heard of it happening on VW motors when the oil pressure regulator fails... the lifters pump up so much when the oil is cold they hold the valves open and the car misfires.

Failure of the pressure regulator can also make the oil filter explode

Discuss: Oil Filter Overpressurized - TDIClub Forums

-J

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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.

You experienced valve float then. Not overpumped lifters. That's a failure of the valve spring to return the valve to closed position before the piston advanced within the valve's travel.

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'84 190D 2.2 5MT (Red/Palomino) Current car. Love it!
'85 190D 2.2 Auto *Cali* (Blue/Blue) *sold*
http://badges.fuelly.com/images/sig-us/302601.png
http://i959.photobucket.com/albums/a...0/sideview.png

Nope. Sprigs were rated for it. Lifters were not. Poor decision to run hydraulics.

Vg