C43 '55' swap thread




Last edited by nkctb7; Jun 15, 2017 at 11:18 PM.
I know you don't want to but the only good option to be sure is to swap everything from the 43, then you'll know it's legit. Not saying it can't be done otherwise but you'd need to know what you're doing and looking for and do some careful measuring and checking the clearance with clay. Using what you know works is much easier and better and everything fits in the chassis as designed. It's the only way to go. Buy an engine stand for $50 and do it right. I'd do a rear main seal also at minimum.
The part where it looks like you're outside with these parts is a bad sign, you need to be surgically clean with everything or as close as you can. Clean work area clean rags organized work area. Any bit of dirt or debris getting in that oil pump could result in total engine failure. Hopefully you have the motor sealed off too. Don't screw around with this stuff take your time to do it right and you'll enjoy many miles of factory reliability.
Also if you use a different pump, check the sprocket and if different size keep the chain with it.




I know you don't want to but the only good option to be sure is to swap everything from the 43, then you'll know it's legit. Not saying it can't be done otherwise but you'd need to know what you're doing and looking for and do some careful measuring and checking the clearance with clay. Using what you know works is much easier and better and everything fits in the chassis as designed. It's the only way to go. Buy an engine stand for $50 and do it right. I'd do a rear main seal also at minimum.
The part where it looks like you're outside with these parts is a bad sign, you need to be surgically clean with everything or as close as you can. Clean work area clean rags organized work area. Any bit of dirt or debris getting in that oil pump could result in total engine failure. Hopefully you have the motor sealed off too. Don't screw around with this stuff take your time to do it right and you'll enjoy many miles of factory reliability.
Also if you use a different pump, check the sprocket and if different size keep the chain with it.
Last edited by nkctb7; Jun 16, 2017 at 12:50 AM.






you only need to worry about oil pan if you're using the 55 motor from a car with a different oil pan.
if I am recalling correctly, you get the motor from a w210 E55, w208 CLK55, or w220 S55 you will not have to change either, just put it in.
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you only need to worry about oil pan if you're using the 55 motor from a car with a different oil pan.
if I am recalling correctly, you get the motor from a w210 E55, w208 CLK55, or w220 S55 you will not have to change either, just put it in.
Last edited by nkctb7; Jun 16, 2017 at 04:55 PM.




example: is the timing chain on a 2002 ml55 the same part number as the timing chain on a 99 e55?
when pulling off the oil pan will i need to swap the oil pan gasket as well?








As i know; all "98>>2006" M112 & M113 uses the same timing chain, NO any difference between them..!,,
"W163 Ml55 & W220 S55" sharing the same U/L oil pans & oil pump,
if i'm not wrong; you can't use S55 can't use upper/lower oil pans on the W202 chassis, cause the angle of the lower pan will touch the sway bar,,
i believe C43 upper oil pan with S55 lower pan will work with C43 oil pump, other than that won't fit..
-;ZAYED;-




As i know; all "98>>2006" M112 & M113 uses the same timing chain, NO any difference between them..!,,
"W163 Ml55 & W220 S55" sharing the same U/L oil pans & oil pump,
if i'm not wrong; you can't use S55 can't use upper/lower oil pans on the W202 chassis, cause the angle of the lower pan will touch the sway bar,,
i believe C43 upper oil pan with S55 lower pan will work with C43 oil pump, other than that won't fit..
-;ZAYED;-
Last edited by nkctb7; Jun 17, 2017 at 01:13 AM.




What's the difference between upper and lower oil pans? Are they in two parts? Honestly I have never checked mine so can't say




Last edited by nkctb7; Jun 17, 2017 at 03:08 PM.
when pulling off the oil pan will i need to swap the oil pan gasket as well?
yeah, always use new gaskets. also i think you might have to switch the fuel injectors as well, easier to just move the whole fuel rail.




when pulling off the oil pan will i need to swap the oil pan gasket as well?











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