I cant get the dust boot seal to fit over the caliper. Its just not big enough and doesn't stretch because it has a metal ring in it. Ive tried c-clamps and everything, it just wont seat. Has anyone ever done this? Whats the procedure? And which way does the metal retaining thing go back in? I figuered it went in only a certain way, but I was wrong. My crappy FAG rebuild kits (yes, FAG is a brand) don't have instructions either. Please help, I have three more of these to do and my blood is already boiling.

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1981 300SD 512k OM603

FAG rebuild kit eh?

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-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.

Yes, and its holding true to the name

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1981 300SD 512k OM603

The steel ring makes no sense. The seal must expand radially outward to snap over the ring on the caliper. Even without the steel ring, you need three hands and the frustration factor is close to 9 on a scale of 10.

I don't see how it would be possible to get the boot to expand with the steel ring in place. Is the ring removable........maybe it's for another purpose?

I have always used ATE repair kits. No issues; no metal ring.

The boot has a metal ring cast into it. Its not visible, its inside the boot. It has to expand to push over the lip.



Tango, I know yours has a metal ring. So how did you get it over the caliper lip? You've done this before, just tell me your clever secret.

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1981 300SD 512k OM603

NVM I just bit the bullet and ordered rebuilt calipers from fastlane. $200 dollars later, problem solved.


When I had the piston out I saw pitting and parts of the piston that were shinier than others, so I decided its not smart to rebuild them anyway.

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1981 300SD 512k OM603