[MBZ] Fan Clutch - Lesson Learned
Well, I tried something today hoping it would work but unfortunately it didn't quite work out. I removed a fan assy from a early 80s 300SD with the plan of installing it on our 91 300D. I cleaned it measured it -- all measurements matched - the dia of the center clutch was the same on both fan assys - yippee! same for the number of blades and the dia of the central dia.Great I think - $5 for something that would be around $200 or more! Awesome! so next I set both side by side - Oops - the blades are made to turn in the opposite direction!So, says I, let's move the new (used) clutch assy to the old fan blades. All fit OK - except the 300D had 3 bolt holes and the 300SD has 4 bolts. Hmmm. With the slots in the clutch it looks like there will be no problem with the fit. So together they go. Then I notice the bolts are different lengths. Hmmm again I tried to switch the clutch with the fans and then tried the bolt - nope, too long, did not leave eouugh room for the ratchet and socket - so I took the 300SD fan out and put the original back. So, there ya go - don't try to replace fans unless you take lots of measurements, take photos and check the fan rotation direction. Now I'm on the look out for a good used fan clutch. The fun never ends.. Have a good day - LarryT 78 240D 91 300D ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Fan Clutch - Lesson Learned
I don't see how it would work at all since the later 60x cars have a single center bolt that holds it to the pump and the 617 has 4 bolts around the hub that hold it to the pump. Sent from my iPhone On Jul 31, 2014, at 3:38 PM, LarryT via Mercedes mercedes@okiebenz.com wrote: Well, I tried something today hoping it would work but unfortunately it didn't quite work out. I removed a fan assy from a early 80s 300SD with the plan of installing it on our 91 300D. I cleaned it measured it -- all measurements matched - the dia of the center clutch was the same on both fan assys - yippee! same for the number of blades and the dia of the central dia.Great I think - $5 for something that would be around $200 or more! Awesome! so next I set both side by side - Oops - the blades are made to turn in the opposite direction!So, says I, let's move the new (used) clutch assy to the old fan blades. All fit OK - except the 300D had 3 bolt holes and the 300SD has 4 bolts. Hmmm. With the slots in the clutch it looks like there will be no problem with the fit. So together they go. Then I notice the bolts are different lengths. Hmmm again I tried to switch the clutch with the fans and then tried the bolt - nope, too long, did not leave eouugh room for the ratchet and socket - so I took the 300SD fan out and put the original back. So, there ya go - don't try to replace fans unless you take lots of measurements, take photos and check the fan rotation direction. Now I'm on the look out for a good used fan clutch. The fun never ends.. Have a good day - LarryT 78 240D 91 300D ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Fan Clutch - Lesson Learned
Yes Larry, a lesson I have learned many times- nothing as expensive as a cheap fix. On Jul 31, 2014 4:38 PM, LarryT via Mercedes mercedes@okiebenz.com wrote: Well, I tried something today hoping it would work but unfortunately it didn't quite work out. I removed a fan assy from a early 80s 300SD with the plan of installing it on our 91 300D. I cleaned it measured it -- all measurements matched - the dia of the center clutch was the same on both fan assys - yippee! same for the number of blades and the dia of the central dia.Great I think - $5 for something that would be around $200 or more! Awesome! so next I set both side by side - Oops - the blades are made to turn in the opposite direction!So, says I, let's move the new (used) clutch assy to the old fan blades. All fit OK - except the 300D had 3 bolt holes and the 300SD has 4 bolts. Hmmm. With the slots in the clutch it looks like there will be no problem with the fit. So together they go. Then I notice the bolts are different lengths. Hmmm again I tried to switch the clutch with the fans and then tried the bolt - nope, too long, did not leave eouugh room for the ratchet and socket - so I took the 300SD fan out and put the original back. So, there ya go - don't try to replace fans unless you take lots of measurements, take photos and check the fan rotation direction. Now I'm on the look out for a good used fan clutch. The fun never ends.. Have a good day - LarryT 78 240D 91 300D ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
