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#1
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420 SEL ball studs loose
Should the ball studs revolve in the head? About half of mine spin freely but the picture of a new one shows threads. What's the deal?
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Gregga '89 420 SEL "Moby Dick" '30 Ford Coupe '31 Ford Slant Windshield Town Sedan '33 Ford Pickup '34 Ford Pickup '01 Honda Passport |
#2
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Gregga
Are you referring to the *engine* ball studs? Haasman
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'03 E320 Wagon-Sold '95 E320 Wagon-Went to Ex '93 190E 2.6-Wrecked '91 300E-Went to Ex '65 911 Coupe (#302580) |
#3
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There are two parts to a ball stud. The ball itself is part of the plunger and will spin. The outer part screws into the head and most certainly should not spin.
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Chuck Taylor Falls Church VA '66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe |
#4
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Yes, the engine ball studs are loose in the heads. I had the engine apart to put in a short block and out of curiosity grabbed the hex with my fingers and it spun free. I tried to tighten it but it felt like there was no resistance, like two machined parts sliding, not like stripped threads. I have one on that side that's making a lot of noise but almost feel afraid to get into it if the threads are all gone.
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Gregga '89 420 SEL "Moby Dick" '30 Ford Coupe '31 Ford Slant Windshield Town Sedan '33 Ford Pickup '34 Ford Pickup '01 Honda Passport |
#5
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My experience is with the 380, but I would be very surprised if the other engines did not have screw-in ball studs.
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Chuck Taylor Falls Church VA '66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe |
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