230sl fully re built engine and injection pump causing plugs to be coated in oil

[Raffles84]

Hi, my 230sl engine has been fully rebuilt and also the injection system - now it’s covering the plugs in oil and burning oil when turned on! Any ideas what to check??

[Tyler S]

How many miles/km is on the engine?
Remove the oil cap while the engine is idling and check for blow-by.
Also be sure you are NOT using synthetic or synthetic blend oil during break in.

[Raffles84]

The engine has been fully re built and all new pistons etc! Using Castrol Classic oil specially for this pagoda. Thanks

[Tyler S]

Check for blow-by as it may help point you in the right direction being valve guides/seals or oil control rings. How many miles on the rebuild?

[ja17]

If it is an automatic, make sure you are not sucking up transmission fluid into the engine. Are all the spark plugs, getting oil on them?

[Raffles84]

Hi it’s had no miles on the rebuild was trying to get it running a bit before I send it for tuning. Just started and ideled a bit

[Cees Klumper]

Could it be the assembly lube burning off?

[Tyler S]

With zero miles it needs to be broken in. If you can get it started hold the rpm at around 2000 for 10 minutes. Then put some miles on it with differing speeds.

[ja17]

Yes could be sucking in assembly lubes. Did they bore the block along with new oversize pistons?

[Raffles84]

Yes the block was bored and new pistons etc. A complete re build was done.

[ja17]

You might have to install a fresh set of plugs and run it a bit more to clear up the problem or determine the issue.