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#46
01-25-2009, 12:32 PM
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A little squirt of starting fluid around the intake and vacuum lines in a running engine will tell you if there's a vacuum leak (engine will speed up). Just don't breath too much, and don't let it ignite.
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 Gone to the dark side - Jeff 
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#47
01-25-2009, 12:42 PM
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Gotcha I'll give it a try.
-- Do you know which vacuum supplies the feed for the economy gauge? Mine has stopped working since the rebuild and I've checked over all the connections and I can't find anything missing....
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2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k
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#48
01-25-2009, 01:03 PM
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On my 95 M104, there were some vacuum connections well hidden underneath the intake manifold. For me they were invisible and only locatable via the Braille method.
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Prost! 
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#49
01-25-2009, 03:24 PM
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Ah found it by pure luck. It is located by the fuses and is yellow. Only reason I saw it was because I saw some leaves down there and as I glanced up I spotted it. Must have gotten pulled out accidentally somehow. Okay everything is functional. This thread is pretty much over.....all my questions will be misfire related which I will answer in my misfire thread.
Thanks everybody...hopefully this thread will help some people who need some visuals for head gasket replacements.
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2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k
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#50
07-08-2009, 10:54 AM
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Quote:
__________________
85 300CD Signal Red/Tan sold 83 300D Manganese Brown 109K 97 E420 Midnight Blue 197K sold 98 BMW 328i Vert White 100K, sold 95 BMW 525i White 125K, sold 93 BMW 525iT Red 193K, sold 95 E320 Green Wagon 125K, sold 94 E320 White 127K, sold 85 300SD 156K Grey (Annie), sold 84 300D Lapis Blue 170K (Judy), sold 99 ML 320 Black (lease), 1998 C230 White (lease) 00 Honda S2000 Red (lease) 86 Mercedes 300E (sold) 84 Porsche 911 Red (sold), 1965 Porsche 911 White (sold)
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#51
07-23-2009, 06:30 PM
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Quote:
This was my first engine rebuild. Never taken a head off before. I paid about $600 in parts roughly (gasket, skimmed head, new valve guides + seals + head cleaned + water pump). Can't remember exactly off the top of my head. I was quoted by a local MB indy $1200 for the head gasket ALONE. I don't even want to imagine how much it would have cost for head gasket, water pump and complete head rebuild....I would estimate it would have been over $2000. All I can tell you is -- If you are ready for the challenge it is well worth it. Any Indy will not be as meticulous as you can be yourself. I cleaned the whole engine block, replaced any hoses that were suspect, or any part that looked suspect in that matter....cleaned pistons, checked everything over. You won't find many Indy's that will take that approach. When everything is said and done, you KNOW what condition your engine is in and that alone is worth the time and sweat  My biggest advice is DETACHING the intake/CIS side at the manifold and leave it alone!!! You don't need all the stress of removing all those electronics + fuel lines etc when you don't have to! You save time + possible problems that could occur on re-assembly. If you have done a water pump before on an M103, you can probably do it yourself. The only couple fiddly parts I found were jiggling the head aside leaving the intake manifold off and the timing chain pin. Other than that, with a Haynes manual, Mercedes FSM and the forum posted in the 1st thread, it was not bad at all.
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k
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#52
03-08-2010, 11:03 AM
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I had a water pump failure on the freeway at 70 mph and its now head gasket for my 300TE. What repair manual would you recommend?
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#53
03-08-2010, 04:25 PM
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Quote:
What materials/cleaning products did you use?
__________________
2006 BMW M5 "Heidi" @ 109,000 miles 2005 MBZ C55 AMG "Lorelai" @ 165,000 miles 1991 MBZ 300E "Benzachino II" @ 165,000 miles 1990 MBZ 500SL "Shoshanna" @ 118,000 miles (On the hunt for a good used M103 engine as of 6/10/23, PM me if you have one to sell!)
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#54
03-08-2010, 04:44 PM
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Just used dremel with cleaning attachment and put some cardboard around piston walls to protect them. As long as you are careful it's fine.
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k
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#55
05-26-2010, 11:41 PM
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I have read the suggestion that you should use an engine hoist for this job, did you ps2cho?
How much does the cylinder head weigh?
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#56
05-26-2010, 11:51 PM
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I thought I might update too that my head gasket is leaking oil down the back of the passenger side of the block. Confirmed it is not the valve cover gasket. What a PITA...
 I did the head torque correctly to spec and I got the head skimmed. I must have gotten a bad HG. It was a Reinz  ...But yes, two guys can pull it together without a hoist. I don't recommend doing it alone, not because it is crazy heavy, but because if you do it by unbolting the intake manifold and leaving it alone, you need an extra pair of hands to slide it out of the guide pin without bending it. Plus you are bending over.
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k
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#57
05-27-2010, 12:05 AM
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Quote:
__________________
http://i193.photobucket.com/albums/z...-RESIZED-1.jpg 1991 300E - 212K and rising fast...
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#58
06-21-2010, 11:02 PM
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How did you go about cleaning the lower block surface? Did you use anything to polish it? Did you remove the two dowels that help hold the gasket in place? I am concerned that if that surface does not get clean enough it will start to leak again.This is a link to my hg pics.
http://picasaweb.google.ca/silversleeves/
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#59
07-27-2010, 06:14 PM
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Doing same job on '88 300 SE. Thanks for the great info on this thread--and the great pics. Anyone out there know of a better head gasket to use? I would hope to get WAY more than 1 1/2 years w/no leaking HG. ps2cho, how extensive is the oil leak. I know you hate that after so much attention to detail and careful work.....
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#60
07-27-2010, 08:07 PM
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Quote:
__________________
85 300CD Signal Red/Tan sold 83 300D Manganese Brown 109K 97 E420 Midnight Blue 197K sold 98 BMW 328i Vert White 100K, sold 95 BMW 525i White 125K, sold 93 BMW 525iT Red 193K, sold 95 E320 Green Wagon 125K, sold 94 E320 White 127K, sold 85 300SD 156K Grey (Annie), sold 84 300D Lapis Blue 170K (Judy), sold 99 ML 320 Black (lease), 1998 C230 White (lease) 00 Honda S2000 Red (lease) 86 Mercedes 300E (sold) 84 Porsche 911 Red (sold), 1965 Porsche 911 White (sold)
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