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Leaking screws Top Timing Cover / Timing Chain Housing?
Hi,
Got my car about a month a go and yesterday noticed below. Seems to be slight oil leak from several screws in the Timing Chain Top Cover - at least i think thats what part of the engine it is. Some areas seem to have been leaking for a while. Any advice before i head to mechanic? Hoping its just a bunch of screws or replacement seals.
Got my car about a month a go and yesterday noticed below. Seems to be slight oil leak from several screws in the Timing Chain Top Cover - at least i think thats what part of the engine it is. Some areas seem to have been leaking for a while. Any advice before i head to mechanic? Hoping its just a bunch of screws or replacement seals.
oil weeps from the VVT adjustment solenoid was a really common problem on 90s Merc engines seems like that Is what's happening here
When was last time you had oil changed? Check off the filter area make sure it isn't leaking from it.
Oil and filter changed in January. Thought it may be gasket from filter also but on further investigation i found sealent which is peeling away which leads me to believe the gasket needs replacing and resealing. Shes going into mechanic Friday anyway so they will take off the front cover, clean, replace gasket and sealant. Im also going to get new screws. Might aswell do all.
Hopefully that will resolve it and no more leaks, if so - not a big job.
oil weeps from the VVT adjustment solenoid was a really common problem on 90s Merc engines seems like that Is what's happening here
Checked also, by solenoid u mean the camshaft senoid magnets? They seem to be clear. It seems tl be localised to a few screws and the gasket where the front cover meets the block.
Checked also, by solenoid u mean the camshaft senoid magnets? They seem to be clear. It seems tl be localised to a few screws and the gasket where the front cover meets the block.
Noticed the same "sweating" on my c450. Anyone fix this themselves or just wipe clean and monitor?
Noticed the same "sweating" on my c450. Anyone fix this themselves or just wipe clean and monitor?
Got Loctite 5970 and 8 replacement alluminium bolts from MB. 60 euro. Car was in with mechanic anyway so he replaced for me but it is definitely a DIY job.
Oil and filter changed in January. Thought it may be gasket from filter also but on further investigation i found sealent which is peeling away which leads me to believe the gasket needs replacing and resealing. Shes going into mechanic Friday anyway so they will take off the front cover, clean, replace gasket and sealant. Im also going to get new screws. Might aswell do all.
Hopefully that will resolve it and no more leaks, if so - not a big job.
Update
Job done. New Loctite 5970 gasketing sealant applied and left for 24 hours. All aluminium bolts replaced also (blue tips). Nice and clean now. 60 euro for sealant and 8 bolts from MB.
Will check in a few weeks for any seepage.
Leak was coming from where the front timing cover (removable by taking out aluminium bolts) met the metal of the timing block head. Sealant had worn down and oil beganeaking through. You can see in photos the sealant around the edges. No other leaks observed from aluminium bolts (changed just in case) or cam shaft magnets or associated bolts (not changed)
Job done. New Loctite 5970 gasketing sealant applied and left for 24 hours. All aluminium bolts replaced also (blue tips). Nice and clean now. 60 euro for sealant and 8 bolts from MB.
Will check in a few weeks for any seepage.
Leak was coming from where the front timing cover (removable by taking out aluminium bolts) met the metal of the timing block head. Sealant had worn down and oil beganeaking through. You can see in photos the sealant around the edges. No other leaks observed from aluminium bolts (changed just in case) or cam shaft magnets or associated bolts (not changed)
I had the same issue when I bought mine.. Brought it to Mercedes dealership. First they replaced gasket, then I still noticed leaking oil, then they replaced new timing cover and oil leak was gone!
Job done. New Loctite 5970 gasketing sealant applied and left for 24 hours. All aluminium bolts replaced also (blue tips). Nice and clean now. 60 euro for sealant and 8 bolts from MB.
Will check in a few weeks for any seepage.
Leak was coming from where the front timing cover (removable by taking out aluminium bolts) met the metal of the timing block head. Sealant had worn down and oil beganeaking through. You can see in photos the sealant around the edges. No other leaks observed from aluminium bolts (changed just in case) or cam shaft magnets or associated bolts (not changed)
05-22-2021, 06:11 AM
