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petermerle Expert Date registered: Apr 2006 Location: Cape Town ( deep south ) Vehicle(s): W460 *1, W123 *2, W124 Posts: 1315 | Clutch fan service Has anyone done this to their viscous fan? My W124 fan unit is suspect - new one costs over $400 here. http://www.nichols.nu/tip482.htm Peter | ||
#161637 | |||
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Roly Elite Veteran Date registered: Apr 2006 Location: Australia Vehicle(s): 1999 G500 Posts: 661 | RE: Clutch fan service I don't know of the repair so can not comment. I do have a new spare viscous coupling for a om 603. It has three holes for the fan and my G engine has four so it's no good to me. What engine/fan are you replacing? | ||
#161658 - in reply to #161637 | |||
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petermerle Expert Date registered: Apr 2006 Location: Cape Town ( deep south ) Vehicle(s): W460 *1, W123 *2, W124 Posts: 1315 | Re: Clutch fan service Mine is also 3 holes for fan , its for OM603.912 engine ( W124 non turbo ). I have got the Toyota fluid and will try the repair procedure this weekend Peter | ||
#161659 - in reply to #161637 | |||
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kerry460 Elite Veteran Date registered: Apr 2006 Location: tasmania australia Vehicle(s): 1984 300GD LWB WAGEN Posts: 611 | RE: Clutch fan service G,,day i managed to make mine pretty good, it is slow work to get the silicon fluid in , pull the front and the brass pin ,heat the hub with hot air gun or hair dryer , as the hub is cooling ad drop by drop and the contraction sucks it in , mine took over 30 millilitres , 2 tubes of toyota silicon . so far its working fine. but as i said it is slow work ,heating, filling to get enough in . cheers kerry | ||
#161665 - in reply to #161637 | |||
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AlanMcR Expert Date registered: Apr 2006 Location: US, CA, Los Altos Vehicle(s): G300DT E300DT 230SL Posts: 3500 | RE: Clutch fan service Are you sure the problem is the fluid and not just a miss-adjusted bi-metallic strip? When I got my G it the fan roared at all temperatures. Some careful bending got the fan to engage at reasonable temperatures. Perhaps yours is bent the other way? | ||
#161666 - in reply to #161637 | |||
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petermerle Expert Date registered: Apr 2006 Location: Cape Town ( deep south ) Vehicle(s): W460 *1, W123 *2, W124 Posts: 1315 | RE: Clutch fan service Well I "serviced" the fan coupling and now its probably too "stiff" but have left it at such . I filled it up with approx 2/3 of a tube of Toyota fluid 08816-10001. This took approximately 1.5 hours , one drop at a time. I heated up the coupling with a hot airgun for a few seconds and then then placed it in a pool of cold water - this draws the fluid it - about 5 drops worth after which you have to reheat it which drives out the air bubbles. Peter (IMG_4066.JPG) (IMG_4078.JPG) (IMG_4076.JPG) (IMG_4075.JPG) (IMG_4070.JPG) Attachments ---------------- IMG_4066.JPG (72KB - 6 downloads) IMG_4078.JPG (118KB - 7 downloads) IMG_4076.JPG (63KB - 7 downloads) IMG_4075.JPG (64KB - 7 downloads) IMG_4070.JPG (48KB - 7 downloads) | ||
#162683 - in reply to #161637 | |||
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kerry460 Elite Veteran Date registered: Apr 2006 Location: tasmania australia Vehicle(s): 1984 300GD LWB WAGEN Posts: 611 | RE: Clutch fan service G,,day not surprised you may have been unsure of my posts here and elsewhere (AGOA) as the front of my hub has the brass pin in the centre, not to the side.! this could also explain the subtle differences in opperation. i also possibly put in too much, but better to have it working more than not at all. glad it has worked for you. cheers kerry | ||
#162686 - in reply to #161637 | |||
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amzimmy Elite Veteran Date registered: Apr 2006 Location: South Africa/Italy Vehicle(s): GD300 1981, Alfa GT 3,2 V6, Alfa Brera Q4 3,2 V6. Posts: 850 | RE: Clutch fan service Hi Peter, I have been following with great interest your tread about "refilling" the viscus fan with the Toyota fluid 08816-10001. I have a spare viscus fan that I have replaced with a new one some time back. I would like to try and revive this old viscous coupling and I was thinking if one would drill a small additional hole opposite the filling hole and insert a little nipple, then with a small vacuum pump "suck" the fluid. Would that be possible? Would that make the whole operation simpler? Just a thought, since I would like to keep one working coupling as spare. amzimmy | ||
#162823 - in reply to #162686 | |||
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petermerle Expert Date registered: Apr 2006 Location: Cape Town ( deep south ) Vehicle(s): W460 *1, W123 *2, W124 Posts: 1315 | Re: Clutch fan service I suppose you could do that , must be careful where you drill as you might damage the "impeller". Does your G have a viscous coupling ?- I am surprised as I thought all SA 240GD/300GD has the "tropical cooling" special version option which entailed having a solid fan coupling and a 70degC thermostat. The coupling I have shown in thread is from my W124 300D ( OM603 ) Peter | ||
#162826 - in reply to #161637 | |||
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amzimmy Elite Veteran Date registered: Apr 2006 Location: South Africa/Italy Vehicle(s): GD300 1981, Alfa GT 3,2 V6, Alfa Brera Q4 3,2 V6. Posts: 850 | Re: Clutch fan service Peter, my 300GD has a viscous fan coupling, however the engine (car engine) was retrieved from the scrap-yard and then modified. I have had no issues with overheating. Have you opened such a viscous coupling before? amzimmy Edited by amzimmy 12/29/2009 10:57 AM | ||
#162827 - in reply to #162826 | |||
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petermerle Expert Date registered: Apr 2006 Location: Cape Town ( deep south ) Vehicle(s): W460 *1, W123 *2, W124 Posts: 1315 | Re: Clutch fan service No not the OM617 type - should be similar. Peter | ||
#162828 - in reply to #162827 | |||
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kerry460 Elite Veteran Date registered: Apr 2006 Location: tasmania australia Vehicle(s): 1984 300GD LWB WAGEN Posts: 611 | RE: Clutch fan service G,,day i would be very hesitant to drill into the hub, how can you keep the swarf from dropping inside. grease can be used , but 1 bit of swarf inside ???? that is why i tried , and came up with the heating method ,then contraction to suck the silicon in.. so far my method has been succesful. kerry | ||
#162852 - in reply to #161637 | |||
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amzimmy Elite Veteran Date registered: Apr 2006 Location: South Africa/Italy Vehicle(s): GD300 1981, Alfa GT 3,2 V6, Alfa Brera Q4 3,2 V6. Posts: 850 | RE: Clutch fan service kerry460 - 12/29/2009 9:50 AM G,,day i would be very hesitant to drill into the hub, how can you keep the swarf from dropping inside. grease can be used , but 1 bit of swarf inside ???? that is why i tried , and came up with the heating method ,then contraction to suck the silicon in.. so far my method has been succesful. kerry Kerry, that was only a thought of mine, to maybe simplify the procedure, I do not know how the inside of the Viscus coupling looks like, and I have looked (Googled) to find some info about this but no avail. I probably will open up such coupling and see what are the mechanics inside. My further thought is that if you have the vacuum and "suck-out" the air,fluid and so possibly all the "shavings" as well. The vacuuming would be through a sealed glass jar so one can monitor all the stuff that's being sucked. Does that make sense? amzimmy Edited by amzimmy 12/31/2009 2:03 AM | ||
#162905 - in reply to #162852 | |||
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kerry460 Elite Veteran Date registered: Apr 2006 Location: tasmania australia Vehicle(s): 1984 300GD LWB WAGEN Posts: 611 | RE: Clutch fan service G,,day good idea , but bits of swarf can and do get lodged in nooks and crannys. with my way , bloody slow , but at least you know whats going in. i may still buya new one while still available, but at the moment things are good. the german thermostat i fitted made a big difference to the overall cooling performance. sorry not sure how much info is on here or on agoa. cheers kerry | ||
#162907 - in reply to #161637 | |||
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mortinson Expert Date registered: Apr 2006 Location: Madrid, España Vehicle(s): '98 G300TD LWB, '98 E300TD Saloon Posts: 1355 | RE: Clutch fan service I can't vouch for these but for the asking price they're certainly worth a try. Thus you don´t get your fingers burntª http://www.gts-shop.de/mercedes-7.html | ||
#162990 - in reply to #161637 | |||
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petermerle Expert Date registered: Apr 2006 Location: Cape Town ( deep south ) Vehicle(s): W460 *1, W123 *2, W124 Posts: 1315 | Re: Clutch fan service Looks like its mostly Chinese stuff Peter | ||
#162998 - in reply to #161637 | |||
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mortinson Expert Date registered: Apr 2006 Location: Madrid, España Vehicle(s): '98 G300TD LWB, '98 E300TD Saloon Posts: 1355 | RE: Clutch fan service I don't know. The manufatured is stated as "DIV": http://www.gts-shop.de/div.html | ||
#163002 - in reply to #161637 | |||
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petermerle Expert Date registered: Apr 2006 Location: Cape Town ( deep south ) Vehicle(s): W460 *1, W123 *2, W124 Posts: 1315 | Re: Clutch fan service If they don't tell you specifically and they DIV seems to make everything from Starter motors to radiators to cylinder heads ( this clinched it for me ) then they will be Chinese. In fact I find it amazing that the Chinese are making so many parts for the old cars - there must be money in it! Peter | ||
#163038 - in reply to #161637 | |||
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grazza Veteran Date registered: Apr 2010 Location: Australia Vehicle(s): W460 230GE 1988 - OM606 turbo diesel, 722.608 auto Posts: 277 | RE: Clutch fan service Sorry to dig up this old post but I may have to use it if my viscous fan is playing up...if. So can someone help with a good way to test the fan. I have done some looking on the net and there are a lot of different and seemingly dangerous methods. I have got the my 230GE up to temp and them stopped the motor, then tried to turn the fan, which it did with "some" resistance. So when I spun it, it stopped quickly after I let go and did not run on much. I am not sure if this is a good check - does anyone know have a surefire method? thanks | ||
#177468 - in reply to #161637 | |||
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mortinson Expert Date registered: Apr 2006 Location: Madrid, España Vehicle(s): '98 G300TD LWB, '98 E300TD Saloon Posts: 1355 | RE: Clutch fan service grazza - 9/15/2010 9:43 AM Sorry to dig up this old post but I may have to use it if my viscous fan is playing up...if. So can someone help with a good way to test the fan. I have done some looking on the net and there are a lot of different and seemingly dangerous methods. I have got the my 230GE up to temp and them stopped the motor, then tried to turn the fan, which it did with "some" resistance. So when I spun it, it stopped quickly after I let go and did not run on much. I am not sure if this is a good check - does anyone know have a surefire method? thanks The only way that I know of of testing the viscous coupling is to throttle the engine with the bonnet open... you must hear the sound of a thousand male elephants in season chasing a female and notice the corresponding amount of air being sucked out of your radiatior... Edited by mortinson 9/18/2010 3:09 PM | ||
#177622 - in reply to #177468 | |||
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