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2002 Coupe-M111 water pump replacement

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Old Mar 29, 2012 | 01:14 PM
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2002 Coupe-M111 water pump replacement

Looks like I have a slow coolant leak. Potentially looks like it is coming from the front of the block.

I searched but didn't see a DIY for the M111 engine. I don't imagine it to be too hard. Some questions I have,

Will I need a pulley puller?

Can I use rtv as a sealant, or is it essential to use the MB offering?

Does the alternator have to come out to? If so, I am likely to have it rebuilt while it is out.

Can anyone think of other PM tasks I should perform while I am at the front of the block?

John, Glyn, C230 Sport Coup or anyone else, when you guys have time, can you see if there are any procedure docs for this work? I appreciate it.

Ed

Last edited by SeaCoupe; Mar 29, 2012 at 09:02 PM.
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Old Mar 29, 2012 | 02:55 PM
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You never bought the DVD? Lame.
Dude....here it is from the W203 DvD.
According to this the pulley unbolts?

Pretty straightforward as I expected, from when I'd looked before.
Much easier than say the M112. You don't need to remove any extra stuff, just drain, take off belts and unbolt.
And it doesn't say anything about any sealant, just clean surface and replace gasket.
But a little RTV probably won't hurt anything.

So how many miles is this? 1st one? I'd been thinking about buying one and keeping it in the car,
just in case. Mine's still original.
RM has 'em for about 100 bucks.

I'd do the thermostat while yer in there.
I'd been planning to do both when I eventually replace the head gasket.
Which brings me to your 'slow coolant leak'.
Any white residue near the #4 cylinder?
http://www.kokes.net/slk/Engine_head...d_gasket_4.jpg

M111 classic failure of head gasket at #4 results in slow coolant leak.
Attached Files
File Type: pdf
M111 Water pump diy.pdf (341.3 KB, 1045 views)
File Type: pdf
Replace Thermostat M111.pdf (247.1 KB, 732 views)

Last edited by C230 Sport Coup; Mar 29, 2012 at 03:40 PM.
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Old Mar 29, 2012 | 09:06 PM
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Originally Posted by C230 Sport Coup
You never bought the DVD? Lame.
Dude....here it is from the W203 DvD.
According to this the pulley unbolts?

Pretty straightforward as I expected, from when I'd looked before.
Much easier than say the M112. You don't need to remove any extra stuff, just drain, take off belts and unbolt.
And it doesn't say anything about any sealant, just clean surface and replace gasket.
But a little RTV probably won't hurt anything.

So how many miles is this? 1st one? I'd been thinking about buying one and keeping it in the car,
just in case. Mine's still original.
RM has 'em for about 100 bucks.

I'd do the thermostat while yer in there.
I'd been planning to do both when I eventually replace the head gasket.
Which brings me to your 'slow coolant leak'.
Any white residue near the #4 cylinder?
http://www.kokes.net/slk/Engine_head...d_gasket_4.jpg

M111 classic failure of head gasket at #4 results in slow coolant leak.
I'll check for the back coolant leak.

Pffft, buy a DVD? Mang, I got peeps, and peeps got me. I have actually planned to break down the whole cooling system. Go to straight water, do a flush with a Prestone product. Or alternatively, get the radiator preventativly rebuilt. Though I don't know if it can be rebuilt.

You know us high mileage guys. We open up the hood and find things to replace out of enthusiasm. Only thing is I'm currently layed up from a case of divertriculitis. I'm down 10 lbs in 5 days. No fun being on Flagyl and Cipro.
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Old Mar 29, 2012 | 11:52 PM
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Never mind your cooling system maintenance. Wishing you a speedy recovery from diverticulitis woes.
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Old Mar 30, 2012 | 06:18 AM
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Flagyl is awful stuff!
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Old Mar 30, 2012 | 11:43 PM
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Dude...
do not consume alchohol.
Interaction with alcohol

Consuming ethanol (alcohol) while taking metronidazole has long been thought to have a disulfiram-like reaction with effects that can include nausea, vomiting, flushing of the skin, tachycardia (accelerated heart rate), and shortness of breath[17]. Typically a 2006 Medicines Handbook warns that consumption of alcohol should be avoided by patients during systemic metronidazole therapy and for at least 48 hours after completion of treatment.[3] However there are studies calling into question the interaction of alcohol and metronidazole,[18] and the mechanism of this reaction in the clinical setting has been questioned by some authors,[19][20] and a possible central toxic serotonin reaction for the alcohol intolerance suggested.[21]
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Old Apr 1, 2012 | 07:51 PM
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Originally Posted by C230 Sport Coup
Dude...
do not consume alchohol.
Interaction with alcohol

Consuming ethanol (alcohol) while taking metronidazole has long been thought to have a disulfiram-like reaction with effects that can include nausea, vomiting, flushing of the skin, tachycardia (accelerated heart rate), and shortness of breath[17]. Typically a 2006 Medicines Handbook warns that consumption of alcohol should be avoided by patients during systemic metronidazole therapy and for at least 48 hours after completion of treatment.[3] However there are studies calling into question the interaction of alcohol and metronidazole,[18] and the mechanism of this reaction in the clinical setting has been questioned by some authors,[19][20] and a possible central toxic serotonin reaction for the alcohol intolerance suggested.[21]
Yep, I know about this one. The night I went into the ER, I had a feeling I wasn't going to make it through the night, so I was dry. I have had numerous stomach surgeries, an ostomy, removal of some of my pipes, but this one was rough. I was just about fetal in the ER. Of course the idiot in me wouldn't take an ambulance in. Because of that I had to wait 45 minutes for a bed and the pain releiving Narcotics. As it stands, I can barely bend over. I'm in my jeans from a few years ago. Now if I can just keep that weight off.

I'll get through this one. Thanks for the well wishes.

Ed
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Old Apr 1, 2012 | 08:57 PM
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From: Llandudno, Cape Town, South Africa
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You have my sympathy. Picked up amoebic dysentery in Pakistan in 1995. Flagyl either kills you or the parasite.
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Old Jul 9, 2013 | 02:27 AM
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Hello, did you ever do the water pump? I have some leaking from front of engine as well and presume the pump is going. I have 185,000+ on my '02.
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Old Jul 10, 2013 | 08:14 PM
  #10  
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Originally Posted by PACIFICMAN
Hello, did you ever do the water pump? I have some leaking from front of engine as well and presume the pump is going. I have 185,000+ on my '02.
Sorry I didn't, but most of the work up front is super easy.
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Old Apr 8, 2016 | 10:55 PM
  #11  
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From: Coal Center, PA
2002 c230
Originally Posted by C230 Sport Coup
You never bought the DVD? Lame.
Dude....here it is from the W203 DvD.
According to this the pulley unbolts?

Pretty straightforward as I expected, from when I'd looked before.
Much easier than say the M112. You don't need to remove any extra stuff, just drain, take off belts and unbolt.
And it doesn't say anything about any sealant, just clean surface and replace gasket.
But a little RTV probably won't hurt anything.

So how many miles is this? 1st one? I'd been thinking about buying one and keeping it in the car,
just in case. Mine's still original.
RM has 'em for about 100 bucks.

I'd do the thermostat while yer in there.
I'd been planning to do both when I eventually replace the head gasket.
Which brings me to your 'slow coolant leak'.
Any white residue near the #4 cylinder?
http://www.kokes.net/slk/Engine_head...d_gasket_4.jpg

M111 classic failure of head gasket at #4 results in slow coolant leak.
Not trying to revive an old thread but where can I find this dvd?!
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