Broken piston... rebuild thread. PICS
Thread Starter
MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,986
Likes: 9
From: Toronto
V12TT
Broken piston... rebuild thread. PICS
Symptoms: Blowing bad blue and black smoke, car shutting off on it's own, bad shaking, misfiring and extremely low power.
Did a compression and leak down test found out cylinder #6 has extremely low compression.
Engine has to come apart...
Tow it home:
Intake box and sumps off and supercharger coming out:
Cylinder head coming out:
Cylinder head out:
Steering rack had to come out to push the #6 piston out. Also the lower oil pan had to come out.
Oil pan and oil pump out:
Undo the bolts and push piston out:
Piston out:
Here is a picture of the damaged piston rings and piston it self. Good thing the main block is OK, talk about luck?
Shopping for a new piston... please PM
Did a compression and leak down test found out cylinder #6 has extremely low compression.
Engine has to come apart...
Tow it home:
Intake box and sumps off and supercharger coming out:
Cylinder head coming out:
Cylinder head out:
Steering rack had to come out to push the #6 piston out. Also the lower oil pan had to come out.
Oil pan and oil pump out:
Undo the bolts and push piston out:
Piston out:
Here is a picture of the damaged piston rings and piston it self. Good thing the main block is OK, talk about luck?
Shopping for a new piston... please PM
Thread Starter
MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,986
Likes: 9
From: Toronto
V12TT
Combination of high kilometers, daily beating, track use and most of all bad tuning with the new pulley.
I painted the supercharger with high heat flat black paint. It tends to chip though.
Can anyone confirm our 55k piston size is 97mm? Same size as the 500 M113 motor? Trying to locate some pistons...
I painted the supercharger with high heat flat black paint. It tends to chip though.
Can anyone confirm our 55k piston size is 97mm? Same size as the 500 M113 motor? Trying to locate some pistons...
Super Member
Joined: Dec 2005
Posts: 504
Likes: 0
Had basically the same thing happened to me afew months ago on my 03 E55,only it was #8 piston and ring,installed a G-55 motor.The car run true and strong like before,or maybe even a little stronger.While the car was down,i contemplated on doing some head work,but decided to do it later,because i had a spare motor that i can do all types of R&D on.I'm thinking on doing a 3" cat back system,and deleting both sets of cats,but before i do so i need to check out those small cats the size of an 02 sensor,that take the place of the cats.I wave a friend running the same set up(3"cat back system with "h"pipe on his 2007 M6 with over 1000 miles since installation,with no cell light and he is enjoying it.
Trending Topics
MBWorld Fanatic!
Joined: Apr 2006
Posts: 8,137
Likes: 26
From: Maryland
Eurocharged 2004 E500, Eurocharged ECU/TCU 2005 SL600, 2010 Caddy SwaggerWagon
Combination of high kilometers, daily beating, track use and most of all bad tuning with the new pulley.
I painted the supercharger with high heat flat black paint. It tends to chip though.
Can anyone confirm our 55k piston size is 97mm? Same size as the 500 M113 motor? Trying to locate some pistons...
I painted the supercharger with high heat flat black paint. It tends to chip though.
Can anyone confirm our 55k piston size is 97mm? Same size as the 500 M113 motor? Trying to locate some pistons...
Who's tune was on the ECU when it failed?
MB World Stories
The Best of Mercedes & AMG
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know
Verdad Gallardo
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Thread Starter
MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,986
Likes: 9
From: Toronto
V12TT
Should I be worried about the other pistons failing then? I really don't want to rip it all apart if this happens again. The tune was someone here local, no one from here on MBWorld so no worries, it was just a matter of time I knew it was going to happen. I also had to replace the failing head gasket I was putting off.
Any suggestions where I should purchase the piston? I'm interested in the forged piston tech tune
Any suggestions where I should purchase the piston? I'm interested in the forged piston tech tune
MBWorld Fanatic!
Joined: Apr 2006
Posts: 8,137
Likes: 26
From: Maryland
Eurocharged 2004 E500, Eurocharged ECU/TCU 2005 SL600, 2010 Caddy SwaggerWagon
Try my buddy Pat at the Maryland location of www.pgauto.com
Tell him Clayton sent you. It's a long shot, but they sometimes have M113 long blocks there.
Good luck.
Tell him Clayton sent you. It's a long shot, but they sometimes have M113 long blocks there.
Good luck.
Thread Starter
MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,986
Likes: 9
From: Toronto
V12TT
Try my buddy Pat at the Maryland location of www.pgauto.com
Tell him Clayton sent you. It's a long shot, but they sometimes have M113 long blocks there.
Good luck.
Tell him Clayton sent you. It's a long shot, but they sometimes have M113 long blocks there.
Good luck.
SPONSOR
Joined: Jul 2007
Posts: 5,459
Likes: 152
From: Houston/ Austin /Toronto / UAE / Minneapolis / Orlando /Cincinnati
Eurocharged Performance ML63 and TT lambo
Should I be worried about the other pistons failing then? I really don't want to rip it all apart if this happens again. The tune was someone here local, no one from here on MBWorld so no worries, it was just a matter of time I knew it was going to happen. I also had to replace the failing head gasket I was putting off.
Any suggestions where I should purchase the piston? I'm interested in the forged piston tech tune
Any suggestions where I should purchase the piston? I'm interested in the forged piston tech tune
MBWorld Fanatic!
Joined: Apr 2006
Posts: 8,137
Likes: 26
From: Maryland
Eurocharged 2004 E500, Eurocharged ECU/TCU 2005 SL600, 2010 Caddy SwaggerWagon
Thread Starter
MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,986
Likes: 9
From: Toronto
V12TT
Thanks guys for all your help! I really appreciate it & eurocharged is too kind. I'll take a look at #8 also..
Thanks Peter, remember I got a few SC bearings if you need em
Thanks Peter, remember I got a few SC bearings if you need em
MBWorld Fanatic!
Joined: Jun 2008
Posts: 4,455
Likes: 31
From: Ny
Anything W/4Wheels
ohh man sry to hear that, good luck with your rebuild.
if your looking for a motor you can pm bruce from ttm "TTMotorsports" i think he has a 55K motor laying around his shop.
if your looking for a motor you can pm bruce from ttm "TTMotorsports" i think he has a 55K motor laying around his shop.
MBWorld Fanatic!
Joined: Jul 2005
Posts: 3,176
Likes: 19
From: London, UK
No longer stock '06 E55, A3 3.2 Quattro, GLE 400d, R107 280SL, Golf Polo
Ugh that hurts to see ... really sorry.
I would consider doing all the pistons after a tear down like that... u/stand cost is always a consideration but seems if one piston has gone reasonable to assume one or two more might be on their way...and would not want to tear the motor up again.
I would also go for forged replacements... I just dont know where you can get a set that is a direct swap.
I would consider doing all the pistons after a tear down like that... u/stand cost is always a consideration but seems if one piston has gone reasonable to assume one or two more might be on their way...and would not want to tear the motor up again.
I would also go for forged replacements... I just dont know where you can get a set that is a direct swap.
MBWorld Fanatic!
Joined: Dec 2006
Posts: 4,949
Likes: 39
From: Clifton, NJ
96 and 08 911 turbos
i would absolutely take that motor out and go over everything.
If you're this far along, no reason not to refresh all the bearings, and look at the other pistons for wear/damage.
Also, I really don't trust honing the cylinder with the engine in the car.
If you're this far along, no reason not to refresh all the bearings, and look at the other pistons for wear/damage.
Also, I really don't trust honing the cylinder with the engine in the car.
MBWorld Fanatic!
Joined: Jun 2009
Posts: 1,388
Likes: 18
'06 E55 K2
Can you post the compression results? Also did you do a leak down? Personally, I am not a big fan of replacing just one piston on any engine, especially an engine that suffered detonation or over-heating. A little extra effort in replacing crank bearings and a physical inspection of all the pistons (and rings) will go a long way for engine longevity. By the way, JE will make any custom forged piston for about $200-$250US per slug...I recently went through this with another project car I have.
Sorry to hear about the tragedy, but you have the right spirit and I wish you the best getting your CL back up and running soon.
Yasin
Sorry to hear about the tragedy, but you have the right spirit and I wish you the best getting your CL back up and running soon.
Yasin
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
I have several low mileage pistons.. PM, and let me know..
__________________
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
