cm60k

Welcome AnyTime D..

-;ZAYED;-

nkctb7

Hey PJ. As you can see in detail in the last pic, the C43 oil pump neck is longer and the angle is completely different. If I didn't swap the neck plate I could've left it the way that it was. The '02 ML55 has the same pump neck as the '02 S55 motor. I'm curious as to why you needed to swap the pan if you didn't swap the pump as the 55 pan fits with the 55 pump pick up. It's only when you swap pumps that you need to swap upper pans as there is a quarter inch difference in order to clear the angle of the C43 pump pick up neck. Are there any issues with running the 55 pump rather than the 43 pump?

benzslo

You need to keep everything together that was made for eachother. Pickup and both pans. You don't want to be mixing this stuff, it's designed to have a certain clearance and location in the sump and you don't mess with that.
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.

nkctb7

Thanks benzslo! I sincerely appreciate the expert advice! The motor is on a stand. The sprocket and internal gears are identical. The motor is new and has never been installed. If the upper pan and pump was designed for this 55 motor, wouldn't changing the upper pan and pump from the 43 be altering how this 2002 S55/CL55 motor was designed? Would it be possible to install it intact without swapping in any C43 parts? Thx

benzslo

The pans and pump are specific to the car it's going in, not specific to the engine. You can bolt any pan up to any m113 engine and it's all the same. The pickup is made for the pans that are installed on the engine. The engines in this respect are all the same.

nkctb7

Thanks for the clarification benzslo as I sincerely appreciate it!

brad_c43

WOAH can someone please clarify this, do i actually need to swap the timing chain as well as the oil pump and all that other stuff too?

Sulaco

you absolutely do not need to touch the timing chain.

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.

nkctb7

The S55/CL55 motor will also need the upper oil pan and pick up swapped out. I would rather leave this new S55 motor intact but I'm told that the oil pump pick up needs to be swapped due to the longer length and different angle. After swapping the pick up, the lower pan is a quarter inch out from clearing the C43 oil pick up neck. This prevents the lower pan from lining up to the upper pan. If you look at the oil pump pics that I posted, you'll see that the two pick ups differ significantly. PJ is running the ML55 pick up and I was told that it is not recommended!

nkctb7

Now I'm very confused as there are many conflicting opinions and suggestions. Can I install an '02 S55 motor without changing anything? The upper/lower pans have the same depth and the pump gears and chain sprocket are identical to that of the C43's. The angle of the pump pick up neck is different as well as a 1/4" in length due to the angle. If I keep the 55 upper pan, I should keep the 55 pump that was meant for that particular pan. Can someone confirm if this is correct? Thx

mickey13

i can fire up the epc on my star computer and check part numbers for you. tell me exactly what you want to know and i will get you the part numbers.

example: is the timing chain on a 2002 ml55 the same part number as the timing chain on a 99 e55?

brad_c43

Awesome, thanks guys. I saw that post and it confused me so i just wanted to make sure. i got my engine from a w209 2003 clk55 with the evo spec motor. as far as i know all i *need* to swap is the oil pan and pump, correct?
when pulling off the oil pan will i need to swap the oil pan gasket as well?

nkctb7

Thx Mickey. I appreciate you offering but I'm going to play it safe and swap the pump and upper pan. I was curious so I looked up both Pump part#'s and the '99 C43 pump is far more expensive than the '02 S55 pump. The lower pan is the exact same part#.

cm60k

D.,

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;-

nkctb7

As always you're spot on, Z. The lower pans are the same part#'s but the upper pan and pick up are completely different. The S55 lower pan sits 1/4" more forward than the C43's. Not only will it hit the sway bar but it won't clear the C43 pump pick up as it angles towards the rear of the lower pan. I've already removed the upper pan and cleaned up my C43 upper pan. I'm going to give it a refresh and paint it before I mount it. Thanks, Z!

cm60k

You're completely Rock D..,,

good job, don't forget to shoot some pics. after paint it..

-;ZAYED;-

DRBC43AMG

Just a quickie.....
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

nkctb7

The upper and lower oil pans are two separate parts. The S55 lower pan is the same part# as the C43/E55/W208 CLK55. The upper pan and oil pump pick up neck is different on the S55/CL55/ML55. Where the lower pan mounts to the upper pan, it is a 1/4" forward towards the front of the motor. The oil pump pick up neck on the C43/E55/W208 CLK55 is an inch longer in length and angles towards the rear of the motor. When swapping the oil pump pick up neck, the rear of the lower pan hits the C43 oil pump pick up neck due to it being longer and its completely different angle (see pics). As Zayed confirmed, the 1/4" difference in upper pan is enough to prevent the lower pan from mounting correctly as well as hitting the C43 sway bar when installing the motor. Thus the reason the upper pan must be swapped out as well as the oil pump pick up neck.

DRBC43AMG

Perfect info. Thanks

mickey13

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.

nkctb7

There is no oil pan gasket. Both upper and lower pans use a silicone sealant that you apply. You must scrape off all of the old sealant and thoroughly clean the area before you apply the new sealant. A plastic scraper works best and don't use any metal objects to scrape the aluminum pans as you could badly damage them.

mickey13

yeah sorry. there is no gasket. pick up 1 tube of mb sealant. part no. 003-989-98-20-10

nkctb7

Cleaned and prep'd upper oil pan. I figured the new S55 motor needed an upper C43 pan that was clean and refreshed. Now to properly cure it in the oven so it lasts a very long time!

benzslo

I'd clean the paint off the sealing surfaces..

nkctb7

A couple more shots.