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  #1  
Old 07-28-2019, 02:24 PM
JHZR2's Avatar
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What is this bolt that just fell from my w123?







Backed out my two w123 cars today and found this. Hadn’t done any jobs on either in a while.

Not a familiar bolt, the thick washer is curious.

Totally speculative that it fell out of something versus had been someplace where it fell during a parts replacement long ago, and just jiggled out.

Does this look familiar to anyone for anything???

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Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)
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  #2  
Old 07-28-2019, 02:40 PM
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It looks like the bolts that hold in the transmission mount support bracket, or the mount to the bracket.
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1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles
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  #3  
Old 07-28-2019, 02:44 PM
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With that thick washer, I'd be checking the alternator or other accessory brackets...
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"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
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  #4  
Old 07-28-2019, 02:45 PM
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Possibly harmonic balancer?
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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  #5  
Old 07-28-2019, 02:46 PM
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Yeah, I agree it looks like an accessory bracket of some sort given the washer thickness.
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  #6  
Old 07-28-2019, 04:22 PM
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The transmission mount and bracket use thick washers like that. That's what tipped-me off to it being a possibility.
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Stop paying for animal enslavement, cruelty, and slaughter. Save your health and the planet. Go vegan! I did 18 years ago. https://challenge22.com/

DON'T MESS WITH MY MERCEDES!


1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles
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  #7  
Old 07-28-2019, 04:24 PM
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Quote:
Originally Posted by Squiggle Dog View Post
The transmission mount and bracket use thick washers like that. That's what tipped-me off to it being a possibility.
I agree. If it uses a 17mm tool, then definitely.
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  #8  
Old 07-28-2019, 04:27 PM
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Quote:
Originally Posted by ROLLGUY View Post
I agree. If it uses a 17mm tool, then definitely.
17mm for the bracket itself. The bolt I found was 13mm.

I think the bolts for the transmission mount themselves are 13mm, but they’re both there.




But I think I found it on the t-stop mount.



Haven’t installed it yet to verify.

I torqued it to spec... strange for it to back out.
__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)
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  #9  
Old 07-29-2019, 07:46 AM
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Yes spot on and a good find .Nothing like dropping the bolt down the engine as your working on it .
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  #10  
Old 07-29-2019, 09:20 AM
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Quote:
Originally Posted by optimusprime View Post
Yes spot on and a good find .Nothing like dropping the bolt down the engine as your working on it .
Lol btdt too many times. I’m just glad this one rattled off in the driveway vs on the rod where it would be lost.

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)
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