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isuras2
Joined: 17 Jun 2005
Posts: 458
Location: Phoenix, AZ
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 Posted: Sat May 06, 2006 11:56 pm Post subject: CV Joint Bolts |
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After looking online and the Porsche dealer at CV joint bolt prices and thinking they were expensive (cheapest I found was $0.95 USD each), I found the bolts at the local Fastenal store. They were grade 12.9 and were metric. They were only about $0.40 each so I got 24 to replace them all. Only $10 for all! The only difference is that they use an allen bit instead of the 12-point torx/star bit, not a big deal IMO. I would think that some hardware stores might have something also.
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Rob
'80 931 (sold)
'80 924 NA (sold)
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Tigger937
Joined: 11 Apr 2004
Posts: 919
Location: PCA Milwaukee Region
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| Posted: Sun May 07, 2006 12:10 am Post subject: Re: CV Joint Bolts |
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WARNING!!! There's a reason Porsche specified the 12 point triple-square head on the bolt. When the bolts become corroded with age, you will NOT get them out with allen heads. THEY WILL ROUND OUT when trying to remove. YOU NEED THE 12 POINT BOLTS! IMHO. It's your decision.
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1981 931 (Concours)
1982 931 (Daily Driver)
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Slam
Joined: 07 Jan 2005
Posts: 1690
Location: Wainwright, Alberta, Canada
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| Posted: Sun May 07, 2006 1:20 am Post subject: |
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Hmmm... I've found the cheesehead ones easier to round out than the hex head ones. My CVs had cheesehead and we destroyed about four of them getting them out. Of course, they'd been in there for years, so what can you expect? I replaced with more 12-point, but a lot of guys replace with hex head.
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'88 944 Auto - may or may not resurrect |
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Tigger937
Joined: 11 Apr 2004
Posts: 919
Location: PCA Milwaukee Region
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| Posted: Sun May 07, 2006 1:26 am Post subject: |
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| Slam wrote: | | Hmmm... I've found the cheesehead ones easier to round out than the hex head ones. My CVs had cheesehead and we destroyed about four of them getting them out. Of course, they'd been in there for years, so what can you expect? I replaced with more 12-point, but a lot of guys replace with hex head. |
Was the correct tool used to remove them, ie., Triple-Square Bit? Mine also were in there for years, but armed with a triple-square bit set and good penetrating oil, mine came out. Required a breaker bar and MUCH force!
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1981 931 (Concours)
1982 931 (Daily Driver)
"Think outside the box" |
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Slam
Joined: 07 Jan 2005
Posts: 1690
Location: Wainwright, Alberta, Canada
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| Posted: Sun May 07, 2006 1:32 am Post subject: |
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Yeah, we used the right triple-square. They'd just been in there so long. We went through the whole 'waking them up' process, then the penetrating oil, and then the breaker bar. The only thing we didn't do was heat them. A couple just simply broke. Things got fun when it became drill and E-Z Out time!
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'88 944 Auto - may or may not resurrect |
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Tigger937
Joined: 11 Apr 2004
Posts: 919
Location: PCA Milwaukee Region
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| Posted: Sun May 07, 2006 1:36 am Post subject: |
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| Slam wrote: | | Yeah, we used the right triple-square. They'd just been in there so long. We went through the whole 'waking them up' process, then the penetrating oil, and then the breaker bar. The only thing we didn't do was heat them. A couple just simply broke. Things got fun when it became drill and E-Z Out time! |
Yuck!!! Sounds pretty ugly.
BTW, a triple-square head can handle more torque than one with an allen head arrangement, all other factors being equal.
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1981 931 (Concours)
1982 931 (Daily Driver)
"Think outside the box" |
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