 Front strut crack repair - how to do it properly |
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| Tdskip |
 Nov 29 2018, 07:46 AM
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#1
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Advanced Member  Group: Members Posts: 3,702 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None 
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Good morning.
While discussing this high dollar car on this thread 914/6 at Canepa the topic of front strut stress cracking came up. I saw the same stress cracking as on a blue car I looked at in SoCal (that was about $100,000 less, ha) so people seem to know to look for it as a not uncommon issue. I'd like to, for general knowledge, like to learn how to repair that correctly. Is it "just" a matter of getting good welds back on the surrounding area? OR, depending on the cause of the cracks, do you need to get the car on a jig and make sure everything is aligned with weight on the front suspension and then weld up the cracks?  |
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| defianty |
Nov 29 2018, 08:52 AM
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#2
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Senior Member Group: Members Posts: 659 Joined: 9-August 06 From: Essex, UK Member No.: 6,621 Region Association: None  |
I've looked at this as closely as I can and wonder if those aren't actually cracks. Now I don't know sixes that well but I thought that black stuff was a tar like substance. I'm wondering if what look like cracks here are actually marks left in the tar where the suspension has been adjusted. You can see what looks like an indentation in the tar around the rear pressure plate too.
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| Larmo63 |
Nov 29 2018, 09:19 AM
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#3
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Advanced Member Group: Members Posts: 4,267 Joined: 3-March 14 From: San Clemente, Ca Member No.: 17,068 Region Association: Southern California |
I don't recall hearing or seeing this as a known chassis crack area.
I could be wrong, but it doesn't (IMG:style_emoticons/default/idea.gif) seem common to me. |
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| dr914@autoatlanta.com |
Nov 29 2018, 09:26 AM
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#4
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914 Guru Group: Members Posts: 8,111 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
that area is very well reinforced and we have never seen that area crack. HOWEVER, we have seen butcher alignment men, when the cars were lowered, and not able to bring the camber in to spec, grinding on the outside of the strut tower to allow the strut to be moved towards the outside a bit more.
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| tygaboy |
Nov 29 2018, 09:31 AM
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#5
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914 Guru Group: Members Posts: 5,474 Joined: 6-October 15 From: Petaluma, CA Member No.: 19,241 Region Association: Northern California
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And I believe the sheet metal is double layered in that area so an extra special fun repair, if welding is needed.
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| dr914@autoatlanta.com |
Nov 29 2018, 09:45 AM
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#6
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914 Guru Group: Members Posts: 8,111 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
yes you are correct doubly reinforced, so cracking is not a problem in this area
QUOTE(tygaboy @ Nov 29 2018, 08:31 AM)  And I believe the sheet metal is double layered in that area so an extra special fun repair, if welding is needed. |
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| Tdskip |
Nov 29 2018, 11:08 AM
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#7
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Advanced Member Group: Members Posts: 3,702 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None
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Thanks for the responses and education gentlemen.
So if you see a car with cracks there something pretty major by way of impact had to have happened to it I assume? |
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| sixnotfour |
Nov 29 2018, 11:51 AM
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#8
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914 Wizard Group: Members Posts: 10,693 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains
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Not cracks or welds ..the factory seal has been broken, and hardware replated ,,and new alignment,,leaving the old imprint of the factory alignment.....SIX
Attached image(s) 
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| Chi-town |
Nov 29 2018, 11:53 AM
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#9
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Senior Member Group: Members Posts: 851 Joined: 31-August 18 From: Disneyland Member No.: 22,446 Region Association: Southern California |
I'm finding some cars have a ton of undercoating there for some reason, looks like that is just some old build up.
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| gandalf_025 |
Nov 29 2018, 01:22 PM
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#10
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Senior Member Group: Members Posts: 1,476 Joined: 25-June 09 From: North Shore, Massachusetts Member No.: 10,509 Region Association: North East States |
This is what my car looks like now.... It has never been aligned
And still has the factory struts in it....  |
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| 914Sixer |
Nov 29 2018, 01:40 PM
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#11
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914 Guru Group: Members Posts: 9,040 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Never seen or heard of cracks there. IF it was a problem area Porsche would have addressed it when they went racing.
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