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  #31  
Old 01-08-2018, 07:17 PM
Diseasel300's Avatar
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Quote:
Originally Posted by ESchwab View Post
I used the 8mm stubby socket made by Stahlwille (a Mercedes tool part no. 103 01 98) which I bought from Samstag to put it in my car.
So did I... The attached picture shows what the bolt did to it. After it rounded off, I tried hammering it deeper into the head to try to get another bite, didn't help. In the end it took welding 3 bolts to it and a long cheater handle. Poor bit didn't stand a chance...

I've also attached the original tag from the fan clutch. I have a hard time believing that this is the original clutch, the label is in too good of condition to be 32 years old. The clutch was still mostly working, but was definitely leaking fluid and didn't lock up as tight as I'd like it to when hot (but it was tightening up).
Attached Thumbnails
603 Fan Clutch Bolt Rounded Out - Now What...-img_1840.jpg   603 Fan Clutch Bolt Rounded Out - Now What...-img_1828.jpg  
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  #32  
Old 01-09-2018, 02:17 PM
WTB: 94/95 E320 Wagon
 
Join Date: Oct 2007
Location: Charleston SC
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Your 8mm stubby socket has rounded corners starting part way up the flats, as if it was not fully seated.

The first time I removed the fan on my '87 wagon, the bolt was VERY tight and I was also very concerned about rounding out the hole, so I made a big effort to clean out the hole with a piece of wire and some brake cleaner. I invested in a strap wrench to hold the pulley wheel, and used a breaker bar on the stubby socket, and I was convinced that either (a) the strap wrench would break or (b) the hole would round out or (c) the bolt would finally submit and come out, and luckily (c) did happen, but not without concern on my part.

Each subsequent removal has been a piece of cake.
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M. Dillon
'87 124.193 (300TD) "White Whale", ~380k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 379k miles
'73 Balboa 20 "Sanctification"
Charleston SC
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  #33  
Old 01-09-2018, 02:28 PM
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Quote:
Originally Posted by Diseasel300 View Post
So did I... The attached picture shows what the bolt did to it. After it rounded off, I tried hammering it deeper into the head to try to get another bite, didn't help. In the end it took welding 3 bolts to it and a long cheater handle. Poor bit didn't stand a chance...

I've also attached the original tag from the fan clutch. I have a hard time believing that this is the original clutch, the label is in too good of condition to be 32 years old. The clutch was still mostly working, but was definitely leaking fluid and didn't lock up as tight as I'd like it to when hot (but it was tightening up).
This BEHR clutch is not factory, its a recent one and a useless one too. The clutch in out is useless as it operates like a binary switch and kicks in at below coolant thermostat holding temperature. (and eventually taking out the water pump bearings too as the fan is loading them up)

The original one is far better than this but is unobtanium now, however you can buy a 99 model 606 turbodiesel fan clutch which works far better than this BEHR item.
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  #34  
Old 01-09-2018, 05:02 PM
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Quote:
Originally Posted by Maxbumpo View Post
Your 8mm stubby socket has rounded corners starting part way up the flats, as if it was not fully seated.
The rounded corners came after trying repeatedly to get it to break the bolt loose. That was a last ditch effort, hammering it in further and using a breaker bar. It finally rounded with full force on a 24" cheater handle. Not something to be taken lightly...

Quote:
Originally Posted by Zulfiqar View Post
This BEHR clutch is not factory, its a recent one and a useless one too. The clutch in out is useless as it operates like a binary switch and kicks in at below coolant thermostat holding temperature. (and eventually taking out the water pump bearings too as the fan is loading them up)

The original one is far better than this but is unobtanium now, however you can buy a 99 model 606 turbodiesel fan clutch which works far better than this BEHR item.
I figured the Behr wasn't OEM. The sticker was too clean to be 32 years old. It was still working for the most part, but wasn't locking up as tight as I'd like to have seen it. The car was last on the road in late '06 or early '07 before I got it, so the clutch is >10 years old. It is being replaced with the OM606 turbo clutch and 11 blade fan from a '99 E320. I've read way too many bad things about the clutches available for the 603's.
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'11 Honda Accord EX - "The Daily" 60K
'83 500SL Euro - "The Money Pit" 116K
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The Diseasel Thread - Everything You Didn't Know You Wanted To Know
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  #35  
Old 01-10-2018, 11:29 AM
WTB: 94/95 E320 Wagon
 
Join Date: Oct 2007
Location: Charleston SC
Posts: 2,441
How much did that OM606 fan clutch cost? Is it MB "star marked" or OEM?
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Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~380k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 379k miles
'73 Balboa 20 "Sanctification"
Charleston SC
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  #36  
Old 01-12-2018, 09:30 PM
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No, the 606 clutch I picked up is not OEM. The one I picked up is an ACM, we'll see how it holds up. I think I shelled out right around $70 for it. If it lasts me 5 years I got my money's worth out of it in this climate.

Anyway, the job is now done. New water pump, new clutch, new clutch bolt, new fan blade, new coolant. Sooooooooo much quieter without that water pump clattering away. Amazing how much noise that thing was making!

For anyone wondering about weight difference, the 11 blade plastic fan is 1/3 pound lighter than the 9 blade aluminum fan. It also moves a truly ridiculous amount of air, I'm hoping that translates into frosty cold A/C in the summer. A/C worked well enough this past year, but it sort of got let down in traffic and at idle. This new fan and clutch is moving much more air than the old ones were, even with the fan freewheeling.

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'11 Honda Accord EX - "The Daily" 60K
'83 500SL Euro - "The Money Pit" 116K
'86 300SDL - "The Diseasel" 184K
The Diseasel Thread - Everything You Didn't Know You Wanted To Know
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