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#1
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strange alterntor or water pump problem
car is a 1999 e300td 200,000 miles
2.5 years/45,000 miles ago water pump was replaced- no problems since 2--3 months ago the alternator went out/pulley broke and was replaced with a bosch alternator that appears to be the right part and match the mercedes one a week ago the fan clutch bolt unscrewed itself and the clutch and fan fell down in front of the radiator bolt was not broken, scracthed or anything -VERY WEIRD nothing was hurt, they put the fan clutch back in and 2 days later the bolt backed out again and messed up a bunch of stuff the new alternator we got was clutched and the consensus was that it needed a none clutched one there is a lot on the forums about clucthed vs non clutched alternators on this model of car but i could not come up with a consensus on which one it should have thinking the alternator was the wrong one i went to mercedes used the vin number and got one there, the parts/shape/numers etc match and the one from mercedes has a clutch also so we are stumped they want to put the car back together with loctite on the bolt and see what it does, i still think something is wrong but i dont know what the replaced alternator seems to be fine, pulley seems fine but something seems to be stopping/jerking the belt and backing out that bolt never seen anything like this on any of my cars any input about alternator issues /pulley issues etc would be great
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Courtney 2006 E320 CDI 2008 ML320 CDI |
#2
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Clutched definitely. ..
The shop may have mixed up the fan clutch with one from a v8 and it's locking up... the belt may be routed wrong and spinning the fan reverse...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#3
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If you go loctite use blue only... NOT RED OR GREEN!!!!
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#4
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Thanks for the input
I don't think there's anything wrong with the fan clutches because two of them have backed out, and the replacement one was from pelican I considered the belt being routed wrong also, but I checked it against the diagram in the book and it was fine This has been by far the craziest deal I have ever had with a car
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Courtney 2006 E320 CDI 2008 ML320 CDI |
#5
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found the problem
the bolt for the water pump seems to screw in correctly and tight but they found that there is a slight wobble when the pump runs
mechanic thinks it was a defect from new, has 45,000 miles on that pump now, so probably just finally wore out from the wobble not sure of the brand, it was oem though getting another oem - think graf- hoping this one will be better if another water pump issue pops up again before 75,000 miles or less think i will just bite the bullet and buy one from the dealer thanks for the suggestions
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Courtney 2006 E320 CDI 2008 ML320 CDI |
#6
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I just installed a Graf on the SD and it looked like a well made solid part.
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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do. |
#7
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Is this only for the alternator? I used Locktite 271 (Red) on my tensioner a few weeks ago per these instructions.....)
http://www.peachparts.com/shopforum/diesel-discussion/312419-diy-1987-300d-serpentine-belt-tensioner-replacement.html
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1982 300GD Carmine Red (DB3535) Cabriolet Parting Out 1990 300SEL Smoke Silver (Parting out) 1991 350SDL Blackberry Metallic (481) "The thing is Bob, its not that I'm lazy...its that I just don't care." |
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