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  #1  
Old 01-14-2011, 07:23 PM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,843
85 SD MASSIVE clunk in diff, and noisy accessories

Hello!
today's project is a really shiny 85SD. a really pretty example.
unfortunately it's in my arena due to the issues the owner is facing.
#1 is a bad motor mount. REALLY bad. no splash shield on it either...
I recently adjusted the valves, and did a minor tuneup on the girl. today's efforts are focusing on the charging system and the noises in the driveline.
I'm going to focus on the alternator as the accessory noise, since the battery is going dead... but the clunk in the diff sounds like massive wear in the teeth. finding a replacement 2.88 is gonna be fun...
I'll take pics if the owner wants me to go forward with this much repair work.

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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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  #2  
Old 01-14-2011, 08:59 PM
One step at a time
 
Join Date: Sep 2009
Location: Burleson, TX
Posts: 426
Does that car have splash shields(heat shields) on both motor mounts or only the drivers side?

I ask because mine only has it on the drivers side. Not sure if the other was removed and not replaced or what.
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1985 300SD 322,000
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  #3  
Old 01-14-2011, 10:47 PM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,843
my 82 has a shield on both sides. the driver's side shield is shaped differently. I can take pics if you like.
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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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  #4  
Old 01-14-2011, 10:59 PM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,843
here's the list so far on what I think the car needs.

1. replacement alternator
2. charge and investigate the battery life
3. new motor mounts on both sides with new shields.
4. replace fuel filters in engine bay.
5. replace all the injector return hoses.
6. change all accessory belts.
7. replace the differential
8. replace the flex disks...
the coolant tank is very clean and white, showing green coolant, so that will get flushed.
the driver's window does not go all the way up, and the driver's seat is flat.
anybody wanna recommend anything else to investigate?
__________________
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 01-15-2011, 10:37 AM
winmutt's Avatar
85 300D 4spd+tow+h4
 
Join Date: Apr 2006
Location: Atl Gawga
Posts: 9,346
I do not like the splash shields. They hide when fuel gets in there and makes it hard to get out...
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1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
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#1995 E320 Touring
#1985 300D Sedan
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  #6  
Old 01-15-2011, 10:40 AM
Registered User
 
Join Date: Jan 2002
Posts: 18,350
Some years ago there was a picture on here of the internals of a thunking differential. It wasn't the teeth but a pin which had elongated its hole.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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