Thread: GAH !
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Old 12-21-2022, 03:12 PM
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Quote:
Originally Posted by Shern View Post
400k isn’t bad then. Not long ago, YKobayshi took his apart to replace bearings.
From memory, what he found wasn’t in terrible shape. Curious what mileage he was at.
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My cars are babies. The blue 300D has 170k currently. My 300SD has about 280k. Both bearing replacements were done during the pandemic. I had pulled my pumps earlier to change gaskets and I left them alone after finding minimal play. But during the pandemic boredom I swapped bearings.

I later dug the old bearings out of my junk box and played around with them. They were worn but still ok. They had play like an ABEC 1 though I bet they were originally 3. Yet nowhere near falling apart. The quality of the original bearing is superb. They easily had another 100k in them. It was clear they wouldn’t last forever but at the same time there was no emergency.

My kid has recently taken ownership of the blue 300d. I really wanted to take care of things like the pump bearings before handing the car over to him.

The OE bearings aren’t going to last forever. I decided to risk changing mine out for new ones. There is some degree of risk because I don’t know if the ones I used (8 ball SKF) actually met spec because I don’t know much about all the different variants of annular bearings. So there is some risk in messing with the existing setup.

That being said the bearings wear. And failure is damning.

I’m sorry it’s not definitive. Decide what you want to do. I decided to swap mine out. I got tired of worrying about it.
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79 300TD “Old Smokey” AKA “The Mistake” (SOLD)
82 240D stick shift 335k miles (SOLD)
82 300SD 300k miles
85 300D Turbodiesel 170k miles
97 C280 147k miles
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