| Welcome to Mercedes-190.co.uk We are the Mercedes 190 owners forum, the place to be for all owners and fans of the Mercedes 190E, 190 and 190D cars. Including Cosworth (2.3 16v and 2.5 16v), EVO 1 and EVO 2 models. Modified and concourse, track cars and daily drivers, all are welcome. This free UK based forum was started back in November 2005 to serve the Mercedes 190 W201 community and now has over 9000 members from all around the world and 600,000 + posts. The members welcome you and encourage you to stay a while and have a look around. We offer you friendly chat and access to some very useful information as well as tutorials with photos and videos for many common repair and maintenance jobs. Whatever your needs there is a good chance you will be able to find what your looking for. Such as our Mercedes 190 buyers guide Sign up to gain access to all areas including for sale / classified areas and country wide meetings and events. Many forum features and sections are only available once you sign up. Join our forum at mercedes-190.co.uk! If you're already a member please log in to your account: **New members signing up** please check your junk mail for the email authorization email otherwise we cannot verify your new account. I have noticed a lot of unauthorized accounts in the system. Regards Admin |
| still the hydro tappets-starting to get really annoyed and concerned....! | |
|---|---|
| Tweet Topic Started: Sun Jun 10, 2012 7:43 pm (718 Views) | |
| mchell | Sun Jun 10, 2012 7:43 pm Post #1 |
|
Part of things
![]() ![]() ![]() ![]()
|
hello I may sound a pest to this forum already!!! Changed my 2.6 auto hydro tappets a few weeks ago (made a thread about it) in hopes of eliminating that rattle in the first spins of the engine from cold. Followed all the correct procedures and the tappets are there and the engine runs smooth. But the fact is that the rattling is still there , although strangely fainted, i mean, less loud than before. Not all mornings I hear it, it's true, but the fact is that i can still listen it once in a while. but fainted. I know that the tappets need to settle, but it has been already 3 weeks and I've driven the car some 20 miles everyday . before I bought the car the engine had the gasket and valve seams done. Could it be that the job was done wrong and they've left a oil passage that is blocked not allowing natural (regular) oil feed to some tappet or tappets? But then again there are no more rattles whatsoever when the engine is running any time while driving! This is puzzling me as I spent the money and problem persists.... Apart from this the engine runs like a charm , never gave any problems, never overheated or produced any other strange noises. cheers |
![]() |
|
| Oil burner | Sun Jun 10, 2012 7:47 pm Post #2 |
|
Volvo owner
![]() ![]() ![]() ![]() ![]()
|
Have you checked the oil pressure with a separate gauge ? |
![]() |
|
| mchell | Sun Jun 10, 2012 7:52 pm Post #3 |
|
Part of things
![]() ![]() ![]() ![]()
|
hello I don't now how to check the oil pressure!
|
![]() |
|
| Neil | Sun Jun 10, 2012 9:21 pm Post #4 |
|
Newbie
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Definitely not Timing Chain / Tensioner rattle? |
![]() |
|
| mchell | Sun Jun 10, 2012 9:55 pm Post #5 |
|
Part of things
![]() ![]() ![]() ![]()
|
don't think so. changed the belt and the little shock absorber a while ago, before the tappets, and the noise still was there. that's why I changed the tappets. As I said, the noise is not always there on start up and seems very fainted compared with before. It's interesting that when you start the engine from cold it tends t rev up a little and then comes down for about 900 rpm while warming up. the noise can be heard just like it was before the tappets change, while the engine revs up and then goes down- it coincides with that initial acceleration and deceleration of the engine- and it is not heard any more while the engine is running and or/ while driving. |
![]() |
|
| mchell | Sun Jun 10, 2012 10:18 pm Post #6 |
|
Part of things
![]() ![]() ![]() ![]()
|
there was one thing that crossed my mind even before the tappets change and I still thought about it but then disregarded. AS I said in previous threads, before I bought the car, the valve seams and gasket where done. And when I was about to change the tappets, I thought in changing those little washers that sit between the top of the valve and the tappet. I decided then to leave them as they usually do not get worn out. Could this be it? I mean, could it be possible that the mechanic that did the seams and gasket 'lost' one or two of those little washers and substitute them by some others of different height??!!! they come in 3 and 3.5 mm of height. Maybe he thought it wouldn't be a problem or maybe he didn't even knew about the different heights of those washers!!!!....in case he lost one or some of them! Because I've noticed that at idling, especially hot, the engine has a mild (but very mild) rocking, noticeable when you're sitting in the car or just looking to the engine one can notice that it rocks a bit in an uneven way..... but it's something so mild that i just thought it could be the injectors- which by the way I also want to change. Which would be the symptoms of just placing 3.5mm in some valves (exhaust or intake) and not on others? After all, the hydro tappets are there to adjust that very same distance! Would this make the idling and/or the running of the engine considerably rough or not? cheers Edited by mchell, Sun Jun 10, 2012 10:20 pm.
|
![]() |
|
| Neil | Sun Jun 10, 2012 10:28 pm Post #7 |
|
Newbie
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Not the auxiliary belt, the Timing Chain inside the engine. It doesn't have a cam belt, it has a chain. The chain has a tensioner on the front of the Timing case. When the chain, tensioner or both start to wear, there can often be an audible 'rattle' on startup that subsides as soon as the engine reaches full oil pressure. This is the tell-tale sign that this part of the engine requires attention. Though there is no typical 'failure' rate of these, if the car has covered significantly more than 150,000 miles without evidence of a new chain & tensioner, it probably does warrant getting looked at. My old 1.8 gave the rattle at 108,000 miles, and I didn't hesitate to get the job done. |
![]() |
|
| mchell | Sun Jun 10, 2012 10:43 pm Post #8 |
|
Part of things
![]() ![]() ![]() ![]()
|
Ok It's also a probability. It crossed my mind to have the timing chain changed a while ago, as the car already has 170k and it wasn't changed when they did the head-gasket- which I consider to be a ridiculous failure! But I've been quoted £250 for the labour with a MB specialist for that so it has been just on my mind..... But I'll do it as soon as possible. cheers Edited by mchell, Sun Jun 10, 2012 10:44 pm.
|
![]() |
|
| mchell | Tue Jun 26, 2012 10:15 am Post #9 |
|
Part of things
![]() ![]() ![]() ![]()
|
Ok. The timing chain and tensioner are done by a MB specilist! Guides were OK. ....and the tapping in the first spins of the engine is still there ocasionally. This morning I didnt hear it. But yesterday yes, and then at night, some 3 hours after arriving from work, it also made itself noticed..... I'm getting the feeling that it might be what I've always suspected and pointed already in previous posts. The previous owner had the valve stems changed and maybe the mechanic in charge "lost" one or more of those ball washers that sit between the tappet and the top of the valve and substituted them with some others of a diferent height, assuming that once the engine running the diference of height would be automatically compensated, which in fact is what the hydro tappets are there for anyway... I don't know if it's a reasonable suspicion or not but I'll have to take it out of my mind anyway.... Just for your opinion, what would be the symptons of the engine for that diference in height of those washers in one or more cylindres (intake and/or exahust valve)? wouldn't it run rocking a bit? cheers |
![]() |
|
| Daliscar | Tue Jun 26, 2012 10:38 am Post #10 |
|
Always On The Ball
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Sounds like you've covered most options......if it's just a slight annoyance and not a hell of a racket........ TURN THE STEREO UP !
|
![]() |
|
| 1 user reading this topic (1 Guest and 0 Anonymous) | |
| « Previous Topic · Engine · Next Topic » |







![]](http://z2.ifrm.com/static/1/pip_r.png)
, although strangely fainted, i mean, less loud than before.




8:35 PM Jul 11