 Sheared key in fan hub. |
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| Jesco Reient |
 Oct 7 2012, 10:00 PM
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#1
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Member  Group: Members Posts: 135 Joined: 18-July 12 From: Western Washington Member No.: 14,690 Region Association: Pacific Northwest  |
So I was trying to change the seal on the fan Hub, Big leak, when tring to remove the fan hub from the crank it required a puller and an indordinate amount of pressure to break free. Once it had broken free I found that the crank keyway had sheared and was in two pieces. This had happened prior to our buying the car but is one more thing that has shown up during the Tune-Up (IMG:style_emoticons/default/headbang.gif) and leak fix that keeps growing with leaps and bounds (IMG:style_emoticons/default/chair.gif) . any Ideas on cause?
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| rnellums |
Oct 8 2012, 09:13 AM
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Professional Enthusiast Group: Members Posts: 1,646 Joined: 26-November 09 From: Littleton, CO Member No.: 11,072 Region Association: Rocky Mountains |
I had this happen to me during a road trip. basically the fan was not not mounted square to the crank during a rebuild by yours truly and the imbalance led to the sheared woodruff key. If you are lucky the keyway in the crank will not be marred. If it is, you will need to fix it properly and install in a new crank. I was able to extend the life of mine enough to get me home by cleaning the assembly well, filing down the edges, replacing the woodruff key, and finally filling all the voids with epoxy before torquing the assembly back together. This let me make it the next 600 miles home, and is still holding together to this day, but it is not "fixed".
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Posts in this topic
Jesco Reient Sheared key in fan hub. Oct 7 2012, 10:00 PM
timothy_nd28 Man, I would love to see a picture of this! Oct 7 2012, 10:06 PM Cap'n Krusty The keyway is the slot in the crank, the key is th... Oct 7 2012, 10:22 PM infraredcalvin Are you taking about the woodruff key insert on th... Oct 7 2012, 10:25 PM
reharvey
I had this happen to me during a road trip. basi... Oct 8 2012, 04:27 PM Jesco Reient Mine was not that badly galled, it was a clean she... Oct 8 2012, 11:01 AM Cap'n Krusty The o'ring goes behind the hub when you instal... Oct 8 2012, 11:10 AM Jesco Reient
The o'ring goes behind the hub when you insta... Oct 8 2012, 04:05 PM wndsrfr
. any Ideas on cause?
As to the cause:
Mine had... Oct 8 2012, 06:08 PM Jesco Reient So for everyones information the key fit nicely, t... Oct 9 2012, 09:12 AM |
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