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+--- Thread: om606.962 lifter changing (/showthread.php?tid=6683)
om606.962 lifter changing - 50harleyrider - 08-14-2015
I have a startup tap in my engine that disappears after 20 seconds so I suspect it's a lifter(175k miles). Are there any tricks for removing/replacing one and where is a good source?
RE: om606.962 lifter changing - barrote - 08-16-2015
u dont need to replace it!!! replacement is only need if tappet is broken. otherwise u remove them and clean them, change the oil. desirable to flush the system.
after that all should be ok. 150.000 miles is nothing for a 606 engine. w124zone.com u can have a factory repair manual...
regards
RE: om606.962 lifter changing - m1tch - 08-18-2015
Are the lifters solid or are they hydraulic? If they are hydraulic lifters I know that old oil can get stuck in there which could cause a tapping noise, my guess with the tapping noise at start up could be something glowplug related - my engine is only on 235k miles and doesn't have any tapping noise and I am pretty sure the engine has been untouched internally.
RE: om606.962 lifter changing - 50harleyrider - 08-18-2015
Hydraulic or else they woul have to be adjusted. Are they difficult to remove? The w-124 site shows no follower, only a hydraulic "compensator" which appears to be a "bucket" shim between the valve stem and cam lobe. Surely someone on here has removed them. Site says not to use steel tool to remove them. What's that mean? Thanks for site, Barrote
RE: om606.962 lifter changing - barrote - 08-18-2015
They need to be clean !!!! JUST THAT.... USE A MAGNET TO PULL THEM. Thats why they are called Hydraulic tappets. They adjust themselves. Clean them and u should be fine
RE: om606.962 lifter changing - Duncansport - 08-18-2015
(08-18-2015, 06:37 AM)50harleyrider Hydraulic or else they woul have to be adjusted. Are they difficult to remove? The w-124 site shows no follower, only a hydraulic "compensator" which appears to be a "bucket" shim between the valve stem and cam lobe. Surely someone on here has removed them. Site says not to use steel tool to remove them. What's that mean? Thanks for site, Barrote
They are easy to change. Cam cover off, pump locked, timing chain tensioner removed, time cams to dots and remove. Then change said lifters.
RE: om606.962 lifter changing - 50harleyrider - 08-19-2015
Thanks. Will remove and clean all of the lifters since the cams have to come out and can check chain and tensioner for wear at the same time. Are all the fasteners re-useable? Since I'm changing to a Dieselmeken superpump for my 97 F-150 swap, can I leave the OE gas lift pump functional in the tank of my truck as well as re-use the oe line? I need to make sure 50 psi suction pressure on the M pump won't hurt it and if the oe line will be diesel and biodiesel compatible. Or should I go with a larger Viton line and remove the oe gas pump from the tank? Diesel being a lot higher viscosity might kill the pump.
RE: om606.962 lifter changing - CRD4x4 - 08-19-2015
I don't know about reusing the hardware but I'd certainly not keep the in tank pump & lines as they're gonna be the source of issues once you get the truck together. Use the biggest best fuel lines you can afford and at least swap the pump for one without ton of hours on it.
RE: om606.962 lifter changing - 50harleyrider - 08-24-2015
Does the W124-zone.com site indicate where one time use TTY fasteners are used in the OM606 engines? I assume when torque values are provided, said fasteners are re-useable? Looks like a great site!
RE: om606.962 lifter changing - Duncansport - 08-24-2015
(08-24-2015, 07:04 AM)50harleyrider Does the W124-zone.com site indicate where one time use TTY fasteners are used in the OM606 engines? I assume when torque values are provided, said fasteners are re-useable? Looks like a great site!
Only the cylinder head bolts are TTY according to Mercedes WIS.
RE: om606.962 lifter changing - 50harleyrider - 01-05-2017
Has anyone had luck with chemical cleaning of the hydraulic tappets in place rather than disassembly? I've seen some chemicals on the market like Seafoam and more expensive and just wanted to know if anyone has had success before I start wrenching. A lot of the guys on the TDICLUB forum swear by Liqui Moly products and here are two I found: 1. Liqui-Moly Tappet Stop Noise works in a similar way as an oil additive. It works for all types of engines, including diesel. It also works with any type of engine oil. It cleans engine parts, including worn lifters, and dampens the noise these parts can make. 2. Liqui Moly 20004 Hydraulic Lifter Additive. Maybe the nature of the construction of the OM606 tappets don't make them good candidates for this?
RE: om606.962 lifter changing - Fishman - 01-05-2017
I flushed my engine with Forte engine flush. I worth the try.
RE: om606.962 lifter changing - barrote - 01-05-2017
Hyd lifters used in MB engines , need to be diassembled and cleaned, filled with oil and installed , they were made to last for as long as the engine last.
flushing the engine will not flush the lifters. But once one look at one dismantled rapidily will understand why i say this....
good luck
RE: om606.962 lifter changing - Petar - 01-05-2017
Yes i think barrote is correct that lifters cannot be flushed with engine oil. The problem is once oil get's inside the lifter it has a very hard time coming out, it's quite likely that there is still some if not all oil in there from the factory oil fillup.
RE: om606.962 lifter changing - 50harleyrider - 01-12-2017
Can anyone send me a link for how to change the lifters for cleaning? I've never been inside an om606.962 so I need to know if I need special tools and what procedures.
RE: om606.962 lifter changing - Hario' - 01-12-2017
(01-12-2017, 08:13 AM)50harleyrider Can anyone send me a link for how to change the lifters for cleaning? I've never been inside an om606.962 so I need to know if I need special tools and what procedures.
Me too!
RE: om606.962 lifter changing - seanyt - 01-12-2017
Ive done hydraulic lifters before and they suggest using diesel to clean them out.
Anyone's ive done have a ball that needs to be depressed inside so a thin bar will do.
Set 3 baths aside filled with diesel, one with all lifters in then clean each one in the second bath, pressing the ball and pushing the lifter to stroke it.
Finally do the same in a final bath to limit / reduce contamination.
They also make a racket until they fill back with oil.
RE: om606.962 lifter changing - NZScott - 01-12-2017
I was literally just reading this thread 30 seconds ago so it might come in handy to someone http://www.peachparts.com/shopforum/diesel-discussion/367621-rebuild-your-om601-om602-om603-hydraulic-lifters.html
RE: om606.962 lifter changing - Hario' - 01-13-2017
(01-12-2017, 07:14 PM)NZScott I was literally just reading this thread 30 seconds ago so it might come in handy to someone http://www.peachparts.com/shopforum/diesel-discussion/367621-rebuild-your-om601-om602-om603-hydraulic-lifters.html
lol same..
https://youtu.be/ySf0r8GGMOY
RE: om606.962 lifter changing - barrote - 01-13-2017
Hope to shed to light into the lifters
obviously above the piston / bucket is the cam contact . to remove the hyd actuator use a plyer, and some ingenuity , clean all with white spirit , fill with oil assembler and thats it ,
lifter failures i have seen is the hyd actuator valve leaking , or the tappet /bucket /piston crown ruptured due to wear.
RE: om606.962 lifter changing - Hario' - 01-17-2017
(08-18-2015, 02:53 PM)Duncansport(08-18-2015, 06:37 AM)50harleyrider Hydraulic or else they woul have to be adjusted. Are they difficult to remove? The w-124 site shows no follower, only a hydraulic "compensator" which appears to be a "bucket" shim between the valve stem and cam lobe. Surely someone on here has removed them. Site says not to use steel tool to remove them. What's that mean? Thanks for site, Barrote
They are easy to change. Cam cover off, pump locked, timing chain tensioner removed, time cams to dots and remove. Then change said lifters.
Duncansport, apologies if I am being stupid, but if you lock the IP first, surely then you wouldn't be able to time the cams to the dots? However reading this I assume removing the tensioner gives chain slack to allow it. So to re-time crank would just have to be set then good to go?
Beer,