Date registered: Sep 2015
Vehicle: 1991 300ce
Location: St.Paul, Mn.
Mentioned: 0 Post(s)
Quoted: 46 Post(s)
EHA weeping, Crack in Valve Cover
Greetings you Ole Benz lovers!
The Benz got through another winter! She ran great....but
Spring finally here, last snow fell a couple weeks ago, now it's time to dig into some new issues.
1st - While changing the spark plugs, I noticed a hairline crack in the valve cover right in front (pic attached) I got a feeling the cracks going to run. Anyone seen this before? Should I start looking for a replacement? If so anyone know of any sources where I can get one?
2nd - I changed from premium unleaded gas with ethanol to premium unleaded without ethanol because I heard it was better. Shortly after I started experiencing hard starts. Coincidence? First thing in the morning car would start right up, after driving, then it sitting maybe 1/2 hour, come back and it acted like vapor lock, just crank and crank without starting. Finally start after pumping or holding pedal down and run great. Sit a couple hours or over night, same thing, start fine, then repeat scenario. Fuel pump, filter, accumulator, o2 sensor, fuel injectors, etc. all been changed within a year.
Could it have something to do with the crack in the valve cover or....
3rd - Noticed my EHA valve was weeping gas a bit around the edges. Didnt really smell gas, but could visibly see it. Replaced the seals, retightened 3 + .5 nm that didnt help. Is it shot?
These are my main issues right now. As usual I appreciate you guys support and feedback...