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Cracked Fan Housing?
Replaced the alternator this week, and when I had it all apart and cleaned up the housing noticed what looked like stress cracks in the housing. They appeared to get more stressed when I bolted the alt back in! I am hoping after I get the whole thing back in that I will be OK.
Anyone ever welded the fan housing? What kind of alloy is it anyway?
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Vance '83 SC Cabriolet - The "Matrix" '73 914 - "Spicy Mustard" - SOLD |
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03-29-2002, 04:55 AM
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Join Date: Aug 1999
Location: Denver, NC
Posts: 1,391
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I believe it is Magnesium.... It can be welded
but you need to find someone that knows how to weld Magnesium.... I would get it fixed before putting it back together. If you have no luck finding a welder you should be able to pickup a used housing....
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03-29-2002, 04:59 AM
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Join Date: Jun 2000
Location: N. Phoenix AZ USA
Posts: 28,943
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Vance,
Found exactly the same thing in my fan housing. Welded it up at a local shop for $25. It is a mix and not for a home welder (unless they are very good) to try. Joe
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2013 Jag XF, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB |
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03-29-2002, 05:29 AM
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Join Date: Jul 2001
Location: Camp Hill, PA USA
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I just had it done too and my welder said it is a mix of magnesium and tin. Very hard to weld, but he got it done for me.
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83 911SC Coupe(Chiffon) 02 SL500(Black) 88 M5(Black) 77 Scirocco(Diamondsilver metallic) 74 TR-6(Magenta) |
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03-29-2002, 12:14 PM
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Author of "101 Projects"
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Small cracks should not be a problem, as you can run it with them there. Big cracks should be addressed...
-Wayne
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Wayne R. Dempsey, Founder, Pelican Parts Inc., and Author of: 101 Projects for Your BMW 3-Series • 101 Projects for Your Porsche 911 • How to Rebuild & Modify Porsche 911 Engines • 101 Projects for Your Porsche Boxster & Cayman • 101 Projects for Your Porsche 996 / 997 • SPEED READ: Porsche 911 Check out our new site: Dempsey Motorsports |
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05-12-2002, 05:16 PM
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Join Date: Feb 2000
Location: Eastern Long Island
Posts: 200
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On reinstalling, be cautious when tightening the strap. Too tight will cause the stress associated with causing the cracks.
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Fred '95 Carrera2. Previous: '69S, '79SC, '84Carrera, '90 C2, 20+ years and counting...... |
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05-13-2002, 04:54 AM
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1983 Porsche 911 SC Cabriolet 3.0
Porsche 959
1973 911 RSR Clone
1972 Porsche 911 RS Clone
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2003 MINI Cooper S
1987 Porsche 962C
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