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#16
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Thanks guys!
I planned to buy a leakdown tester anyway, it on my Christmas list, but why wait? I will pressurise the cooling system when cold and see where its leaking. Last time I looked it was the radiator! Done that now! Next!
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2009 Mercedes ML320 Bluetec |
#17
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If it ( the leak) is coming from the heater hose, it's pretty DIY too. It helps to remove the air filter assm and the oil filter. You'll see the engine lifting hook back there, you'll see the one allen-head holding that on, and there is also one UNDER the part the hose attaches to, called the heater hose nipple. The nipple is all one piece with that lifting hook. Don;t even bother removing the clamp for the heater hose. Just get the 2 allens off and the nipple part will remove from the block. The part that engages into the block has a grey o-ring on it, which is available separately. I'd consider getting the MB part for this.
Gilly
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Click here to see the items I have up for auction at EBay Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold) |
#18
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Thanks Gilly,
I think I've got exactly the same leak on my 86'. Heck, maybe I should do the valve seals also- 95k miles. Lot easier on my time than a valve job. Michael
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Michael McGuire 83 300d 01 vw A4 TDI 66 Chevy Corsa 68 GMC V6 w/oD 86 300E |
#19
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IMHO the replacement of the valve stem seals don't really have a bearing on the guides. If anything the oil going past the seals might actually extend the life of the guides, but then you have to live with the crappy plugs and oil consumption, so not a good trade-off. I'd replace the stem seals if you have driveability concerns or oil consumption related to them.
Gilly
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Click here to see the items I have up for auction at EBay Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold) |
#20
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Thanks Gilly.
We drove the car a bit after cleaning up the plugs. I will try to get the non resister plugs this week. At first it ran really nice, then when the temp gauge got to 85/90, it started to misfire agin. I felt that changing to 20/50 might help it run better, but it seem as bad as before. I saw in my MB CD, that the usa/cal cars should have the Duty cycle set to 35% to 45%. I knew that last time I set it to 45/50, and when I checked it today, thats what it was. I tweeked it down to about 40% and its close to that at 2500rpm too. Do you think the misfire we have is just the bad oil seals, and have you seen this before or am I just thinking wishfully that the seals will cure it.
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2009 Mercedes ML320 Bluetec |
#21
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VERY common on the 103
Gilly
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Click here to see the items I have up for auction at EBay Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold) |
#22
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Oh my!! I do not think I have seen spark plugs do that before. Looks like something I would want to scrape off of there posthaste.
Good luck to you and yours. |
#23
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Yeah!
I think you can see from the thread header... I was in shock! We swapped back the plugs for the champions that were in there when we got it until we can get the correct non resisters.
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2009 Mercedes ML320 Bluetec |
#24
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Link to valve stem seal DIY article for M103 below.
http://www.peachparts.com/Wikka/M103ValveSeals |
#25
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Quote:
I learned something today! I never heard of the rope trick, but that is great if no air is available. I suspect once at the point of the rope holding the valves up, you'd want to lock the crank in place somehow, so it won't rotate. Thanks Gilly!
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Thank You! Fred 2009 ML350 2004 SL600 2004 SL500 1996 SL600 2002 SLK32 2005 CLK320 cabrio 2003 ML350 1997 C280 Sport |
#26
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Yah special German hanging rope or maybe some Shania Twine.
Gilly
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Click here to see the items I have up for auction at EBay Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold) |
#27
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Jeez...
All fed up now! Cant find the correct plugs anywhere. Even NGK dont have non resister anymore! Maybe someone can tell me how I will know if the guides are toast?
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2009 Mercedes ML320 Bluetec |
#28
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Hey, I'm as traditional as they come and would LOVE to see non-resistors available. Bottom line is you NEED valve stem seals, those plugs aren't CAUSING this. Just buy whatever is "currently" correct, whether or not it is technically correct. Replace the stem seals and move on.
Gilly
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Click here to see the items I have up for auction at EBay Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold) |
#29
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Oh, on the guides you just "wiggle" the stem to check for looseness. At your mileage I doubt they are worn. To be nuts-on accurate you use a dial indicator and find out how much play there is. In other words you wiggle them just as I am suggesting but measure the results, not just a "general feel".
Gilly
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Click here to see the items I have up for auction at EBay Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold) |
#30
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Thanks Gilly,
I plan to do these stem seals in a couple of weeks. Up to my elbows in my Jeep waterpump and now it looks like I have a shot A/C clutch bearing and idler too! I was just looking for the correct plugs in the hope that it would help the plug fouling and make the car run smoother in the meantime.
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2009 Mercedes ML320 Bluetec |
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