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Minimum Specs 85 300SD front Rotors ?
I am about to replace the front pads with the ceramic ones and I believe the rotors might be warped. Anyway I am going to put a mic on them and see if they are serviceable and also check to see if they are warped before I order new rotors. Does anyone know the minimum specs on these ?
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92 500E Silver 66k 82 Porsche 911SC 84K 68 Cadillac ( Gone Now ) 03 Suburban Z71 200K 85 300SD 217k From Original Owner ( Dad ) |
#2
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Quote:
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AJ 1985 300D (SOLD) |
#3
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19.4 mm.
But as snookwhaler suggested, check the rotors themselves. Each rotor manufacturer may have a different minimum then the factory. .
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1983 123.133 California - GreaseCar Veg System |
#4
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Really?
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#5
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Yes, 19.4 mm in front and 7.3 mm in rear.
I'm not so sure about differences in manufacturers.
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83 SD 84 CD |
#6
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Thanks. I will probably check them Thursday.
Alan
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92 500E Silver 66k 82 Porsche 911SC 84K 68 Cadillac ( Gone Now ) 03 Suburban Z71 200K 85 300SD 217k From Original Owner ( Dad ) |
#7
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Yes. My w126 rotors are stamped 20mm minimum. Centric Brand. I dare not to go past that on those.
.
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1983 123.133 California - GreaseCar Veg System |
#8
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I suppose that if the manufacturer lacks confidence in its product, you should, too!!!
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#9
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The minimum thickness is going to be partly determined by the size of the vents in the disk and the quality of the casting. It may be that the particular manufacturer has slightly larger vents or the castings have surface imperfections. When vented disks fail the wheels normally lock. Not worth the risk!! If it was 20.5mm I would consider changing them.
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Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort.... 1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles 1987 250td 160k miles English import 2001 jeep turbo diesel 130k miles 1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving |
#10
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Quote:
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1983 123.133 California - GreaseCar Veg System |
#11
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I will check them this a.m. and decide what to do. I know that many years ago I had a 1979 BMW 320i that was notorius for issues from front brake rotors. As it turns out they warped very easily due to inferior quality of the steel used. Those discs were made in Brazil and were well know for these issues. The front wheels on this 300SD have those brake dust shields between the wheel and the hub. My father had those put on even though I had cautioned him against it.
I will be removing those and installing Ceramic pads instead. I have a set on my Suburban and love them, plus you do not get the brake dust. The only issue is it takes a little longer for them to warm up and reach max efficiency. At least that is what I have read. I have a set of Carbon Fiber pads on my 911 and man when you hit the brakes it feels like the hand of God just grabbed a hold of your car. Anyway thanks to all. Alan
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92 500E Silver 66k 82 Porsche 911SC 84K 68 Cadillac ( Gone Now ) 03 Suburban Z71 200K 85 300SD 217k From Original Owner ( Dad ) |
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