GTG at the Man Cave Oct 26-28, 2018 - Page 19 - Mercedes-Benz Forum
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post #181 of 187 (permalink) Old 06-25-2019, 06:31 PM
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Unfortunately, one of the things I don't own is an alignment machine.

I'll have to check to see what was used before I start slagging the tech.
So....a little bit more going on.

I had a significant vibration between 60 and 70 MPH which made me remove all 4 wheels for balancing. ALL of them were off...as I had them spin the wheels with the current weights just to see what was what.

I predicted one of the front wheels would be bad and I was right. Yea for me.

So all balancing done and whilst the wheels were off and the car was in the air....I checked the tie-rods.....not a mark on them. No vise grips used!

AND I developed a bit of a brake squeak backing up and a very low parking lot type speeds.

So I removed the NEW front pads, chamfered the edges, applied some MN brake paste (which I did not have at John's) and slapped it all back together....did the same on the rears.

Squeaking gone. Vibration gone.

For now.
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post #182 of 187 (permalink) Old 06-25-2019, 06:46 PM Thread Starter
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Date registered: Apr 2005
Vehicle: 1986 560SL with M120 V12 Engine, 1988 560SL Stock
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So....a little bit more going on.

I had a significant vibration between 60 and 70 MPH which made me remove all 4 wheels for balancing. ALL of them were off...as I had them spin the wheels with the current weights just to see what was what.

I predicted one of the front wheels would be bad and I was right. Yea for me.

So all balancing done and whilst the wheels were off and the car was in the air....I checked the tie-rods.....not a mark on them. No vise grips used!

AND I developed a bit of a brake squeak backing up and a very low parking lot type speeds.

So I removed the NEW front pads, chamfered the edges, applied some MN brake paste (which I did not have at John's) and slapped it all back together....did the same on the rears.

Squeaking gone. Vibration gone.

For now.
Samson has Ceramic pads up front. They don't make noise but they have a rough feel which you can feel in your feet. A hard stop from 100 MPH at the end of the 1/4 mile makes them as smooth as glass for a while. I have been told that 30MPH in reverse will do the same thing.
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post #183 of 187 (permalink) Old 06-26-2019, 07:55 AM
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Samson has Ceramic pads up front. They don't make noise but they have a rough feel which you can feel in your feet. A hard stop from 100 MPH at the end of the 1/4 mile makes them as smooth as glass for a while. I have been told that 30MPH in reverse will do the same thing.
Didn't help that I drove 12 hours through the rain with brand new rotors and pads....and then parked the car until spring. I'm truly surprised that I didn't have rust on the rotors under the pads.
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post #184 of 187 (permalink) Old 06-26-2019, 04:36 PM Thread Starter
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Didn't help that I drove 12 hours through the rain with brand new rotors and pads....and then parked the car until spring. I'm truly surprised that I didn't have rust on the rotors under the pads.
Read some of the online brake bedding procedures. Some progressively harder breaking to bring the disk up uniformly in temperature. Might just clean it out.

BTW. You resurrecting this thread, does that mean its time for another GTG at the Man Cave?
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post #185 of 187 (permalink) Old 06-27-2019, 04:42 AM
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Garage
I didnít make the GTG, but...

I have been doing some ďalignmentsĒ with alignment plates that a neighbor has for his drift cars. Iíve borrowed them so many times, heís suggested I buy my own. They are $64, and basically two sheets of aluminum. No degree markings. So if you want to calculate degrees, get ready for some trigonometry.
Longacre LON52-79501 Toe-in Plates https://www.amazon.com/dp/B000VAOHB2..._NMkfDbQ7Z07P5

The extra $136 for turntables seems like money well spent. Iíd be interested in trying them or hearing Roncalloís opinion of them.

My 280sl (5-speed, like Nobbyís, but basically irrelevant to the topic) makes a crazy clacking noise when I brake in reverse with any significant speed. Itís a really rare occurrence that Iím driving in reverse with any significant speed, so itís hard to make an issue of it, but itís a real ďWTF was that!?!?Ē when it happens. Maybe I will see if I can get a video. Itís pretty surely the brakes. (With the 560sl air dam and 225/50/16 on et11, I will get tire rubbing when turning in reverse, but Iím pretty confident this is a whole different issue.)



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post #186 of 187 (permalink) Old 06-27-2019, 05:09 AM
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Read some of the online brake bedding procedures. Some progressively harder breaking to bring the disk up uniformly in temperature. Might just clean it out.
I did that one early morning on the highway.

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BTW. You resurrecting this thread, does that mean its time for another GTG at the Man Cave?
I only wanted to finish the story I started at your place.

But who am I to say no to a GTG?
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post #187 of 187 (permalink) Old 06-27-2019, 08:57 AM Thread Starter
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I did that one early morning on the highway.



I only wanted to finish the story I started at your place.

But who am I to say no to a GTG?
October was good weather wise. Let me check with the wife. Who's interested.
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