Viscous Fan Tools

[emerydc8]

Inspired by GVZ's "epic-est" Top-end Refresh string, I decided to order the tools to remove the fan clutch. I ordered them from Annapolis MB on August 11 with express shipping. They replied back almost immediately that they had to get them from Germany and I said go ahead. I was surprised that they arrived today. Maybe express is the way to go. I'm curious, why are there two different lengths attached to wrench 120-589-14-07-00?

Part Number​	Part Name​	Price​	Quantity​	Total​
603-589-00-40-00​	Holding Tool​	$120.00​	1​	$120.00​
103-589-01-09-00​	Socket​	$21.60​	1​	$21.60​
120-589-14-07-00​	Screw Driver​	$123.60​	1​	$123.60​

Subtotal: $265.20​

Estimated Shipping to 85750 via Expedited Shipping: $50.02​

Total: $315.22​

 

[gerryvz]

I don't have an answer for that, but my tool is exactly the same. Always wondered that as well. Both Allens are the same size, and the only difference is the length of the lever. I think perhaps the longer one helps remove the bolt a bit quicker on account of the slightly longer lever?

I have found that items in Germany tend to take approximately 2-3 business days to arrive after being ordered. I placed an order last Thursday, and Monday early morning of this week. Both orders contained items that had to come from Germany, and both orders were ready (I picked them up) yesterday -- Wednesday -- early afternoon. From what I see, items that come from other US warehouses (such as Fontana or Illinois) tend to take 1-2 days.

The items in Robbinsville, NJ -- just up the road -- definitely arrive next day after being ordered. Fortunately the vast majority of items tend to be in Robbinsville, which is helpful for me being in a Mid-Atlantic state.

The pulley holder will come in handy for ANY operating involving the need to hold a pulley in place (for example, to remove it).

 

[gsxr]

I'm curious, why are there two different lengths attached to wrench 120-589-14-07-00?

Different lengths for some other chassis/clutch setup. I don't know which may require the longer one.

Note the stubby 8mm driver won't work with the Sachs/Horton clutch if the radiator is installed, there isn't enough room... only ±22mm air gap from clutch plastic cage, to radiator core. A cut-down Allen wrench can be used instead to break the bolt free, then you can may be able to fit the spinner in to partly back out the bolt. However, the spinner is still too thick, you'll need to stop with the bolt halfway unscrewed, and use your fingers to get it fully unthreaded.

If you just pull the radiator, all 3 tools work perfectly. I've owned all 3 for something like 15-20 years now? Worth every penny...

 

[emerydc8]

Gerry,
The distance from the pivot point and the Allen is the same on both ends of the tool -- 1". The distance from the pivot point to the other side (the side that doesn't have the Allen) is 1.3 on one end and 2.3" on the other. Go figure.

Dave,
Is the Sachs/Horton fan the original factory?

 

[gsxr]

Dave,
Is the Sachs/Horton fan the original factory?

Correct... Sachs/Horton is factory/OE clutch, the big sucker.

If you have the aftermarket ACM (or ACM clone) there is much more room and I think your tools will work on those, if a "flat" 3/8" driver is used for the socket.

Note the spinner tool has a rectangular tab on one end, designed to plug into the factory Hazet torque wenches; allowing a torque wrench to be used in less space than usual. I just snug the bolt by hand and make sure to NOT over-tighten it.

 

[chicky]

Gentlemen

Please forgive my "newbie" question ... would the fan clutch tools featured on emerydc8's post, be applicable to R129066/M119960 ?

Thank you in advance

 

[emerydc8]

Note the spinner tool has a rectangular tab on one end, designed to plug into the factory Hazet torque wenches; allowing a torque wrench to be used in less space than usual. I just snug the bolt by hand and make sure to NOT over-tighten it.

That might explain the two different lengths, though it's hard to imagine what the factory Hazet torque wrench looks like if the tab could plug into it. The tool has 40 NM stamped on it. I presume that's for the fan bolt? Sounds kind of tight.

 

[gsxr]

Please forgive my "newbie" question ... would the fan clutch tools featured on emerydc8's post, be applicable to R129066/M119960 ?

Yes. See section "B" at link below, then scroll to the end. Should be all the same tools / part numbers. You don't need the $$$$ torque wrench shown.

https://www.500eboard.co/misc/Manuals/Servicev3.2/W124/w124CD1/Program/Engine/119/20-3120.pdf

 

[emerydc8]

You don't need the $$$$ torque wrench shown.

At $472, I think you'd probably want to have this torque wrench gold-plated and mounted for your office rather than use it on your car!

Spanner - (001-589-72-21-00) | Get Mercedes Parts

Spanner 001-589-72-21-00

www.getmercedesparts.com

 

[gsxr]

The factory setup is, I believe, either Hazet or Stahlwille. See photo below. The idea is to have one wrench with interchangeable heads. And, the wrench can plug into specialized tool "heads" like the fan spinner. Very cool, very German, very expensive.

 

[emerydc8]

Now that is cool. I wonder if the techs at the dealer each have these, or maybe there's just one per shop and the rest use conventional torque wrenches. I also wonder if GVZ has these tools hidden in his deep spares in the temperature-controlled room -- just because. I may have to get these, for the same reason.

 

[gerryvz]

Very few to no tools in the deep parts archives. Though I do have a couple: a new airbag TORX bit and a new spare fan clutch socket.

And spare MB M119 (Horton) and G320 fan clutches. And used examples of each too.