front oil pan
Senior Member
Joined: Feb 2015
Posts: 435
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From: New Zealand
W204 C200, BMW E30 M3, 1980Gt Mini, Toyota Corona, KTM 200 EXC.
Hi just wondering why are you replacing the chain and guides, I just thought they would last the life of the engine.
I am sure someone could provide a set of instructions from Mercedes what is required access wise.
I am sure someone could provide a set of instructions from Mercedes what is required access wise.
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12 C63BS Magno Alanite Grey, 25 X5 Msport, 08 BMW E93, Ducati Hyper 698
So there is no room between the subframe and engine to do it, so something has to move to get enough room, you only really need an inch. Either engine goes up or subframe would need to go down.
The official procedure is to disconnect a few things and lift the engine a bit, not super easy but much better than removing the engine.
Rob
The official procedure is to disconnect a few things and lift the engine a bit, not super easy but much better than removing the engine.
Rob
Member
Joined: Jun 2020
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AMG C63
Probably worth removing the entire engine from the car.
You could use this as an opportunity to also reseal the pans since they're prone to potential leaks but you can probably avoid that unless you really have to and dont feel like being an overachiever.
You could use this as an opportunity to also reseal the pans since they're prone to potential leaks but you can probably avoid that unless you really have to and dont feel like being an overachiever.
Thread Starter
Junior Member
Joined: Apr 2023
Posts: 16
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C63 W204
just checked those cylinders and looks like the valves made contact with the piston on 7 so rip
Senior Member
Joined: Feb 2015
Posts: 435
Likes: 81
From: New Zealand
W204 C200, BMW E30 M3, 1980Gt Mini, Toyota Corona, KTM 200 EXC.
The photos look like normal carbon in the valve pockets of the piston with no indication of contact with the valve otherwise the carbon would be missing and have shining indication on the piston crown.
If it was me I would have a compression or leak down check on the engine to verify if in fact the misfire is mechanically related to the engine or is some other electrical problem.
Unfortunate with your timing chain guide problem, but I don't see at this stage how the timing chain guide is related to 5,7&8 cylinders.
I have boro-scoped various E30 M3 engines and have photos with black carbon flaking and not flat with the piston crown and not caused any concern or problem.
If your engine is high milage or some other related timing chain issue that might cause part of the guide to brake but the 5,7&8 cylinders wont.
If it was me I would have a compression or leak down check on the engine to verify if in fact the misfire is mechanically related to the engine or is some other electrical problem.
Unfortunate with your timing chain guide problem, but I don't see at this stage how the timing chain guide is related to 5,7&8 cylinders.
I have boro-scoped various E30 M3 engines and have photos with black carbon flaking and not flat with the piston crown and not caused any concern or problem.
If your engine is high milage or some other related timing chain issue that might cause part of the guide to brake but the 5,7&8 cylinders wont.
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Thread Starter
Junior Member
Joined: Apr 2023
Posts: 16
Likes: 2
C63 W204
The photos look like normal carbon in the valve pockets of the piston with no indication of contact with the valve otherwise the carbon would be missing and have shining indication on the piston crown.
If it was me I would have a compression or leak down check on the engine to verify if in fact the misfire is mechanically related to the engine or is some other electrical problem.
Unfortunate with your timing chain guide problem, but I don't see at this stage how the timing chain guide is related to 5,7&8 cylinders.
I have boro-scoped various E30 M3 engines and have photos with black carbon flaking and not flat with the piston crown and not caused any concern or problem.
If your engine is high milage or some other related timing chain issue that might cause part of the guide to brake but the 5,7&8 cylinders wont.
If it was me I would have a compression or leak down check on the engine to verify if in fact the misfire is mechanically related to the engine or is some other electrical problem.
Unfortunate with your timing chain guide problem, but I don't see at this stage how the timing chain guide is related to 5,7&8 cylinders.
I have boro-scoped various E30 M3 engines and have photos with black carbon flaking and not flat with the piston crown and not caused any concern or problem.
If your engine is high milage or some other related timing chain issue that might cause part of the guide to brake but the 5,7&8 cylinders wont.
These are the codes it threw
P0637 Misfiring of cylinder 5: Damages TWC(P0305)
P0649 Misfiring of cylinder 6: Damages TWC(P0306)
P0661 Misfiring of cylinder 8: Damages TWC(P0308)
P1204 Alternating adjustment of exhaust camshaft of left cylinder bank in direction Advanced or Retarded.(P0019)
P1212 Alternating adjustment of intake camshaft of left cylinder bank in direction Advanced or Retarded.(P0018)
I did have a rattle on startup that i thought was the adjusters so i ordered the 63 plates and was about to replace them before this happened
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12 C63BS Magno Alanite Grey, 25 X5 Msport, 08 BMW E93, Ducati Hyper 698
Can we start over and ask how you know the timing chain guides are done? To me it looks like your car adjusters are done and maybe you need injectors, how did you determine the chain guides need work?
Thread Starter
Junior Member
Joined: Apr 2023
Posts: 16
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C63 W204
I originally thought the adjusters were bad as well with the rattle on start up but now i think it was from the chain
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12 C63BS Magno Alanite Grey, 25 X5 Msport, 08 BMW E93, Ducati Hyper 698
Ya that is a problem, seems it might have skipped a tooth then on the left bank with all the misfires and timing codes, which isn't enough to cause contact so you may have dodged a bullet.
You should be able to do it in the car once you get the cooling pack out of the way and lift the engine to get the front pan off.
I agree with others not seeing any indication of contact with the piston just some carbon build up that with the bad timing and misfires may just be more noticeable with the misfires loosing it up a bit or cleaning it off a bit.
You should be able to do it in the car once you get the cooling pack out of the way and lift the engine to get the front pan off.
I agree with others not seeing any indication of contact with the piston just some carbon build up that with the bad timing and misfires may just be more noticeable with the misfires loosing it up a bit or cleaning it off a bit.
Thread Starter
Junior Member
Joined: Apr 2023
Posts: 16
Likes: 2
C63 W204
Ya that is a problem, seems it might have skipped a tooth then on the left bank with all the misfires and timing codes, which isn't enough to cause contact so you may have dodged a bullet.
You should be able to do it in the car once you get the cooling pack out of the way and lift the engine to get the front pan off.
I agree with others not seeing any indication of contact with the piston just some carbon build up that with the bad timing and misfires may just be more noticeable with the misfires loosing it up a bit or cleaning it off a bit.
You should be able to do it in the car once you get the cooling pack out of the way and lift the engine to get the front pan off.
I agree with others not seeing any indication of contact with the piston just some carbon build up that with the bad timing and misfires may just be more noticeable with the misfires loosing it up a bit or cleaning it off a bit.
after checking other cylinders I noticed this in cylinder 5, it is right in the center of where the spark plug would be sitting, I checked the spark plug gaps and all are inconsistent, Could this be from it misfiring or should I worry about this?
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From: Kitchener, ON
2010 C63 AMG
I'd pull the engine out, yank the heads and pan to inspect everything properly on a stand . You're going to have bits of guide all over the place.
Seems you got lucky once. Odds of being lucky twice are greatly diminished.
Seems you got lucky once. Odds of being lucky twice are greatly diminished.
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12 C63BS Magno Alanite Grey, 25 X5 Msport, 08 BMW E93, Ducati Hyper 698
I think this is the best advice you will get as it is short work once the engine is out to go through it and know you are good for the next 100k.
