Date registered: Nov 2012
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W108 3.5 Misfiring Issue
I have recently bought W108, 1972 3.5 V8 which was stored for few years. Have misfiring issue, rough running with black smoke with loads of unburnt fuel.
Following things have been carried out by Mechanic:
1- Compression Test (Equal Pressure in All cylinders)
2- New spark plugs, leads, rotor and distributor Cup
3- New fuel pump
4- 2 New injectors as fuel was leaking out.
5- Spark in all leads
Having taken out spark plugs after misfiring, unburnt fuel and plugs were wet with fuel.
Advice and opinion is needed and would be greatly appreciated for any ideas what could be issue as my mechanic has no idea what else could be wrong.