Never done a 300sd , the passenger side really is a cake walk .For this back bolt on the driverside motor mount its a different story.Looks to me that if you pull the injection pump primer it will give you access to that last bolt .Is this the secret?

Except when the PO screws up the bolts accessed from above

My next project is to remove the turbo and exhaust manifold to get at that thing

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----Adam

1985 300SD 322,000

I gotta look at the mounts in my SD...
what do you mean "back bolt" mine are parallel to the bumper...

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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!

take out allen head in center of mount from under side and jack up engine.both sides are easy to do.

You should NOT have to remove any components to access.

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'85 300SD (formerly california emissions)
'08 Chevy Tahoe
'93 Ducati 900 SS
'79 Kawasaki KZ 650
'86 Kawasaki KX 250
'88 Kawasaki KDX200
'71 Hodaka Ace 100
'72 Triumph T100R

are you talking about the motor mounts themselves, or the aluminum arm that attaches to the block?

__________________
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!

Ive got the passenger sides looose,then the one bolt closest to the fender on the driver loose ,its the inner one that is not giving up the secret.Ive jacked the motor up to pull up on the relaxed old motor mount and have some more room but its a tricky spot to get to.A 6mm hex on a swivel then 12in extention .When the primer piece is out of the way it looks doable.I remember this project on a 300d ,not so bad with time for lunch in between .Im not throwing wrenches as of yet ,I lose to many that way.

ahh. my solution for that was to get a 6mm allen wrench, grind down the short side about 1/4" and it fits in there tight. loosen the bolt, then use a ball socket end to remove the bolt.

__________________
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!

Turned out the bolt was stripped ,Id taken the other bolt off then wiggeled the mount then tried a screw driver down into the bolt ,luck was on my side.Required me to take the mount piece off the engine ,wasnt long before I had it going back together.

At least it wasn't the main bolt going up into the arm that was stripped or cross threaded. THAT is a fun job.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)