Frustrated with 190e... HELP? - PeachParts Mercedes-Benz Forum

richbark · #1 05-17-2002, 11:57 PM

I am about to off my 1985 190e 2.3 8V.. I had a blown headgasket and so I had the head rebuilt.. new everything including guides and cam. Cylinders looked great. I just finished putting it all back together and it does not run any better than before I started the project. I started it, ran it for 10 minutes to break everythig in and turned it off. Only difference is that now it does not blow white smoke. Still starts hard, still has a substantial miss and now when I re-started it has a really loud tapping noise in cylinder one. (I assume rocker or follower). I am completely stressed out over this.. I just put $700 into this engine project and I fear nothing has really been remedied. Any suggestions from the mor eexperienced mechanics out there? I have no other car ( I am sharing one right now), I have little money left, and I am open to suggestions? Any help will be much appreciated.

Maddog · #2 05-19-2002, 12:27 AM

Here is a few things to check. I would check your cold start injector for cleanliness. Check your ignition system and maybe give it a good tuneup. The loud tapping towards the front of the engine might be the timing chain tensioner. It will make clicking noises when the engine is cold and you start it up.

pentoman · #3 05-19-2002, 08:44 AM

hi,
Just check your OVP relay.. I know it often gets suggested as the fix for pretty much everything here (flat tyre? Check your OVP!) but missing and hard starting are a symptom of the fuse blown, or the OVP being removed.

Don't worry... it'll all start working like new soon, with all the work you've put into it.., just one small bit you've missed is all!

later

Russ

richbark · #4 05-19-2002, 08:59 AM

Thanks guys. I have found the rough running cause. Actually had NO compression in cylinder one. Very odd reason for this.. the intake valve for cylinder one does not fully close when I have that cam bearing torqued to specs (15lb). If I lessen the torque, the car runs GREAT. I know it is a weird issue, but has anyone else seen this happen? If I can find a work around for this, I will be VERY happy (all cylinders will then have 152psi compression).
Thanks again for all the help everyone has offered.