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Old 12-02-2001, 08:15 PM
Ashman's Avatar
Service Advisor
Join Date: Sep 2000
Location: Sherman Oaks, CA
Posts: 4,748
1992 300CE caliper removal help...

Could use some input as to how to get the damn calipers off the car so I can do my brake job.

Discs and pads are easy once the caliper is off I can easily do the job.

I can get the bottom 19mm bolt off. The top one is very hard to get to with a socket, and I don't have enough leverage and torque to break it loose.

I was thinking a 19mm open ended wrench could work in that tight spot, otherwise I'm open to suggestions.

I might just whip it down to my mech and have him break it loose for me then tighten it down so I can do it myself.

But I'd rather save the trip to him to get him to do just that. If I can break it loose myself.

I'm going to get some penatrating oil or liquid wrench or something, spray it in there and let it soak for a little bit, then try breaking it loose with a larger wrench if I can.

Any input to all you DIY'ers as to what I can do without having one of those air compressed hammer drills to knock the sucker loose?

I have no problems with picking up a good extension/wobble/socket etc to do it. I'm always looking for an excuse to buy a new tool... hehe

'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.
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Old 12-02-2001, 09:49 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
I use an impact wobble socket from Snap-On. I use it in conjunction with my 1/2" impact wrench. IT takes them off with ease. Don't forget the blue loctite when reinstalling.
Donnie Drummonds
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Old 12-02-2001, 10:16 PM
Posts: n/a

Using an open end wrench to bust loose a stuck nut is a good way to find the nearest emergency room. The open end will find it's way off of the nut when you least desire. I would recommend you invest in a 1/2" breaker bar and a good 1/2" socket set. A 6 point set is always the best, but for this tight app you might need the more versatile 12 point socket because it can attach in double the compass settings (I hope that makes sense, it's how I think of how a socket attaches).

For those times when the breaker bar isn't enough, a 1-1/2" schedule 20 or higher pipe will give you the edge.

I have found the breaker bar is almost always enough, and it's tough enough to smack with a sledge for a little impact action when needed.

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