Snapped a couple of outer CV bolts, Need some advice on repair |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Snapped a couple of outer CV bolts, Need some advice on repair |
phillstek |
Dec 31 2015, 05:47 PM
Post
#1
|
Member Group: Members Posts: 350 Joined: 19-May 10 From: Byron Bay, Australia Member No.: 11,741 Region Association: None |
Backing out of the drive at the office on Xmas eve I heard a loud snapping sound from the right rear of the car. I managed to move the car forward a few meters and heard another snap though not as loud and decided that I probably shouldn’t try to continue without checking out the source of the noises.
Got underneath and found the outer, righthand side CV had come completely loose but with all six of the bolts still there. Got it home on a flat bed, up the jack stands and dropped the axle to find 2 of the bolts had snapped off but only one of them with the broken end still in the drive flange. Checked the other threads in the drive flange for damage and other than the one that has a piece of the bolt in it, one other thread is damaged. There is also a small burr on the recess in the drive flange where the paper gasket mounts between it and the CV. I’m pretty sure the drive flange can be repaired but wanted confirmation on the removal procedure. If I undo the big castle nut on the stub axle should I be able to drift the drive flange out through the back of the trailing arm and is re-intallation the drive flange the reverse? Stubs are 911 5 lug and the drive flange is 6 bolt. I also have a spacer between the CV and the drive flange. The spacer is the outer ring of a CV and compensates for the difference between using the original 914 driveshafts. I’ll post some pics later which should help. Thanks. |
stinkindiesel |
Jan 1 2016, 02:34 PM
Post
#2
|
Member Group: Members Posts: 184 Joined: 14-June 13 From: Georgetown, TX Member No.: 16,012 Region Association: Southwest Region |
I'm getting a chuckle out of the comments that a few hits with a dead blow hammer will
get the shaft out. I spent a couple of days with PB Blaster and hot wrench before the impact hammer got the castle nut off. I've yet to find the magic to get the splined shaft to come loose :^( Hopefully, 2016 will be a new experience! Gary |
Mark Henry |
Jan 2 2016, 08:06 AM
Post
#3
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I'm getting a chuckle out of the comments that a few hits with a dead blow hammer will get the shaft out. I spent a couple of days with PB Blaster and hot wrench before the impact hammer got the castle nut off. I've yet to find the magic to get the splined shaft to come loose :^( Hopefully, 2016 will be a new experience! Gary I use a 3/4 breaker bar and a 2,4 or 6 foot pipe to crack the big nut. This will crack VW bug 36mm and 46mm bus axle nuts, the 914 big nut is nothing compared to them. Warning... wheels have to be on the floor for this. Hardest blow you can safely knock the stub or hub out with is a large brass drift and a BFH. (IMG:style_emoticons/default/smash.gif) Big enough brass drift and you can use a sledge hammer, of course this would be a two guy job, but I've never ever had to go that far. The brass drift distorts, not the stub/hub. Even the crustiest come out with that combo. BTW use good judgment when doing above, even if your not damaging the hub you could start bending other shit, especially on a crusty car. Really it should start moving 1st/2nd blow with a BFH. |
Lo-Fi Version | Time is now: 1st June 2024 - 06:35 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |