Date registered: Dec 2012
Vehicle: 89 190E2.6- 5-speed Manual, 95 E320 Sportsline-sold, 2001 E320 4matic Wagon-sold
Location: San Jose, California
Mentioned: 9 Post(s)
Quoted: 536 Post(s)
Very interesting that this does not show up in the leak-down test. I was pretty sure that your valve guides are not warn but this assertion at least fits the original assessment of the shop. Top and bottom ends not matching...Hmmm. Compression of >200PSI sounds high to me but that must be normal for a brand new valve job. I also have a couple of questions to you both:
(1) Is there a way to definitely prove this is the case?
(2) Stardivari, what type and viscocity oil are you using? I suspect synthetics would be worse for this but certainly a viscocity of 20W50 may help in your case. That is what I use in my M103, 20W50 conventional.