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Discussion Starter · #1 · (Edited)
Are these Bentley-specified special tools really needed for an overhaul of the BMW 525i E39 cooling system and belt-drive components?
1. cooling fan counterhold tool BMW 11 5 030 (I6) & BMW 11 5 040 (V8) [Note: This tool is described with many names!]
2. cooling fan 32 mm wrench (BMW 11 5 040)
3. 24mm hollow thin socket alternator pulley nut removal tool (BMW 12 7 100)

Does anyone have a drawing of the (1) water-pump-pully-counterhold tool dimensions?

REFERENCES:
Bentley pages 020-16, 110-2, 121-2, 170-15, & 170-23.
http://www.samstagsales.com/bmwtools.htm
http://www.pelicanparts.com/BMW/catalog/shopcart/BE39/POR_BE39_TOLtol_pg3.htm
http://www.germanpartsonline.com/bm...cylinder-engines-m50-m52-m52tu-m54-from-1992/
http://www.magnum1.com/BMW-740/740_Pages/Maintenance-Pages/Water-Pump-740.html



 

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Are these special tools really needed for an overhaul of the BMW 525i E39 cooling system and belt-drive components?
1. cooling fan counterhold tool (BMW 11 5 030) aka "fan pulley holder"
2. cooling fan 32 mm wrench (BMW 11 5 040)
3. alternator pulley nut removal tool (BMW 12 7 100)
Are they all needed, no.... much of this depends on your skill level.....they might help some people.

1. I just a use a hammer and 32mm wrench to loosen nut on fan clutch, everytime, all the time, on time.....for me the tool is a waste of money.

2. Yes, you will need a 32mm wrench. Northern tools wrench plenty good enough for this purpose.

3. Not need for cooling system overhaul. I just use my impact to loosen alternator pulley nuts.
 

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Are they all needed, no.... much of this depends on your skill level.....they might help some people.

1. I just a use a hammer and 32mm wrench to loosen nut on fan clutch, everytime, all the time, on time.....for me the tool is a waste of money.

2. Yes, you will need a 32mm wrench. Northern tools wrench plenty good enough for this purpose.

3. Not need for cooling system overhaul. I just use my impact to loosen alternator pulley nuts.
So what's your technique for the fan clutch? I have tried hammer and wrench, screwdriver on pulley and wrench and could not loosen without the flat tool made for that purpose. Got the tool and had it loose in 30 seconds or less.
 

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The tool shown will work on the six, but not the V8, since the nuts are recessed. If you can't get it loose with a hammer, you need the tool.

Ask me how I know.
 

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Are these special tools really needed for an overhaul of the BMW 525i E39 cooling system and belt-drive components?
1. cooling fan counterhold tool (BMW 11 5 030) aka "fan pulley holder"
2. cooling fan 32 mm wrench (BMW 11 5 040)
3. alternator pulley nut removal tool (BMW 12 7 100)

Making your own tool (which confusingly seems to go by various names) is discussed here (for the 740 anyway).

I have a friend who said he'd make whatever special tool I needed out of stock steel if I could provide a full-sized PDF drawing of the part by email & it's thickness.

Do you have a PDF drawing (or a trace of the business end) of the tool dimensions & thickness?

REFERENCES:
Bentley pages 020-16, 110-2, 121-2, 170-15, & 170-23.
http://www.samstagsales.com/bmwtools.htm
http://www.pelicanparts.com/BMW/catalog/shopcart/BE39/POR_BE39_TOLtol_pg3.htm
http://www.germanpartsonline.com/bm...cylinder-engines-m50-m52-m52tu-m54-from-1992/







 

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Discussion Starter · #7 · (Edited)
Wow. Did you draw those perfect diagrams yourself? They are wonderful!

It looks like we can craft the necessary BMW 11.5.030 M54-engine cooling fan counterhold tool out of 5/32" thick steel stock, about 16 inches long and roughly 1 3/16" wide.

We can drill a 15/32" hole centered 11/32" from the end of the tool and then two more for the slot and then jig saw out the hollow.

I'll try to get this done and then post pictures. If anyone else tries it, please post pictures of your handiwork.

Any idea where best to get the stock steel?

 

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Discussion Starter · #8 ·
I'm pretty sure the tool above from mmm635's original wonderful thread (which I just found doing this research) will fit my M54 engine but I'm still looking for the dimensions for the others (with the V8, for example).

We should probably mention the bolt spacing for the BMW E39 "holder wrench for fan hub" tool is different depending on what engine you have (according to this incomplete reference and this more complete reference).

- Holder wrench for fan hub bolt spacing 45mm. Applicable on the following engines: M10, M20, M30, M50, M51, M52, M52TU, M54, M56, M70, M73, S14, S38, S50B30, S50B32, & S54; 394mm in length. Old BMW P/N 88.88.6.115.030; new BMW P/N 83.30.0.491.046

- Holder wrench for fan hub bolt spacing 38mm. Applicable on the following engines: M40, M41, M42, M43, M44, M60, M62, N62, & S62; 400mm in length. Old BMW P/N 88.88.6.115.050; new BMW P/N 83.30.0.491.048

 

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Discussion Starter · #9 · (Edited)

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Discussion Starter · #11 · (Edited)

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Wow. Did you draw those perfect diagrams yourself? They are wonderful!

It looks like we can craft the necessary BMW 11.5.030 M54-engine cooling fan counterhold tool out of 5/32" thick steel stock, about 16 inches long and roughly 1 3/16" wide.

We can drill a 15/32" hole centered 11/32" from the end of the tool and then two more for the slot and then jig saw out the hollow.

I'll try to get this done and then post pictures. If anyone else tries it, please post pictures of your handiwork.

Any idea where best to get the stock steel?

Yeah, I got carried away on my modeling program one day and figured it would help others out.
 

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Discussion Starter · #13 ·
Yeah, I got carried away on my modeling program one day and figured it would help others out.
You did a great service to the rest of us. I hadn't seen your post about it until I started digging further. I'm amazed all measurements are in whole numbers (in metric).

Wondering about the two sizes (45mm and 38mm hole offset), I "designed" in MS Paint a new hypothetical tool that handled all engines! :)

 

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You did a great service to the rest of us. I hadn't seen your post about it until I started digging further. I'm amazed all measurements are in whole numbers (in metric).

Wondering about the two sizes (45mm and 38mm hole offset), I "designed" in MS Paint a new hypothetical tool that handled all engines! :)

The Germans like to be precise when machining is involved.

If I could just get someone to take measurements of the V8 tool with a digital micrometer, then I could add it in my model. I would just take my original tool and modify the end with the covering/handle to test it out. Once I can get the drawing done, it will be easy to fabricate such a tool with a scaled drawing, as well as the 32mm wrench necessary.
 

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sweet, im soo building one once i finish my subframe bushing tool project
 

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not trying to be a $%^& for most people who doesn't have tools or experience in cutting steel, it's just easier and faster to buy the tool itself. I tried making one but it didn't work, so I got my WP counterholder for around $25 from ebay. It's double ended, so it fits almost any BMW. Already used in my 525i, 540i, and friend's 745i. Makes removing a fan clutch a 10 sec. job.
 

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Discussion Starter · #17 ·
Here's a quick price survey from an Internet search for the commercial versions of our home-made water-pump pulley holder.

I could only find three suppliers, which is surprising.

Please add any missing suppliers!

11.5.030 (45mm offset):
Pelican Parts:
PEL-TOL-3038 $36.10 + CA 10% tax + shipping
Samstag Sales: 88.88.6.115.030 $56.99 + CA 10% tax + shipping
Technitool: 115-030 $36 + CA 10% tax + shipping

11.5.050 (38mm offset):
Pelican Parts: PEL-TOL-3037 $36.10 + CA 10% tax + shipping
Samstag Sales: 88.88.6.115.050 $58.00 + CA 10% tax + shipping
Technitool: 115-050/M $41 + CA 10% tax + shipping


 

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Discussion Starter · #18 · (Edited)
I tried making one but it didn't work, so I got my WP counterholder for around $25 from ebay.
Good idea. I bought this tool set from EBAY for about 30 bucks plus about 15 shipping.

It has the 38mm bolt spacing for the V8 and the 45mm bolt spacing for the I6.

 

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Discussion Starter · #19 ·
For the record, here's another documented attempt on outpost.com ...

Here, they document their use of a standard carpenters "speed clamp" and all they do is enlarge one hole and drill another.

 

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