3100 Lower Motor Mount Replacement Write-Up

[AWeb80]

Mods, feel free to put this in the FAQ section......that is why I did the write-up

 

 

 

First off, what you will need

 

2 jack stands

1 Jack

1 Small block of wood

1 15mm offset wrench

PLENTY of shop rags/paper towels.....a blown hydraulic mount is a MESS

 

 

 

I got a solid rubber mount from Auto Zone (only place in town that had a solid one). I got a solid one because I didn't want the liquid inside to disintegrate the rubber and go bad again....besides, it was cheaper than the fluid filled one anyways.

 

 

 

 

 

 

 

 

 

 

 

fist jack up the car and set the jack stands on lower A-arms as shown below

 

 

 

 

then releae the pass side dogbone, but leave teh driverside hooked up...this allows the motor to NOT fall back toward the firewall and will also allow it to pivot on that dogbone as you jack the motor up.

 

 

 

 

next, take off pass side tire and splash guard if so equipped.

 

 

 

then undo the 2 15mm nuts on the bottom of the mount

 

 

 

 

Then jack up the motor using the jack and a Block of wood on the oil pan....slowly.

 

 

only jack up far enough to raise the mount out of the "pan" it sits in.

 

 

 

then release the three (3) bolts on the mount to realease it from the block....

 

 

 

 

 

 

pull the mount out (raise the jack slightly if needed)

 

 

 

now take the two nuts off the top to release the bracket from the mount

 

OLD mount

 

 

 

 

 

 

bracket off and new and old mount

 

 

 

 

 

put the bracket on the new mount...firmly hand tight the nuts...

 

 

install is reverse of pulling it out........I highly recommend you clean out the goo, rocks, and muck from the bottom of the mount holder...no sense in the new mount sitting in that gunk and tearing itself up on the rocks in there.

 

 

 

 

here is the New mount in its place ready to go.

 

 

 

[mfewtrail]

The mods should put this in the FAQ section. Nice writeup.

[AWeb80]

here is HALF the gunk I dug out

 

 

 

[digitaloutsider]

I have the same mount in the Regal. It's pretty much FTW.

[AWeb80]

so, 3100's aren't the only motor to have this exact mount?

[digitaloutsider]

Nope. 3800's and 3.1's share it, too. Different mounting bracket, though.

 

Come to think of it, that probably includes the 2.8 and 3400 as well. Add the 3500 to that list, too.

[mediabandit]

Nice write-up. good job as always.

[AWeb80]

Nope. 3800's and 3.1's share it, too. Different mounting bracket, though.

 

Come to think of it, that probably includes the 2.8 and 3400 as well. Add the 3500 to that list, too.

 

well, move and adjust this write-up as needed then.

[MikeP2389]

hahah mine was that bad maybe even worse when george and i replaced it this past saturday. but i had to get the hydrolic mount cuz the solid one we got from napa didnt fit into the holes. good write up.

[MonteCarloDude]

i have been thinking about replaceing the montes mounts sometime. nice to have a good write-up on how to do it.

[Andrew]

very good pics man! this help help MANY peeps on here.

[Brian P]

solid mounts from autozone? Sweet!!

[Andrew]

when you did this, did you ever have clearance issues with the DP hitting the underside of the car, or did it have plenty of leeway?

[Euro]

Nice writeup!!

[AWeb80]

Thanks. It Was Fun. Every Thing Came Apart And Together Great.

[rockfangd]

nice writeup. When did autozone start carrying the mounts?

[mfewtrail]

nice writeup. When did autozone start carrying the mounts?

 

They've been available since 2006. I made a post about them back when I first came across them(November 2006).

[Hairdo12]

Here are some pictures for the vin T 3.1 lower motor mount. There are five bolts that for the bracket. The top left one is the biggest pain to get back in. I recommend test fitting the mount in the cradle and the bracket seperatly first to make adjustments to the mounting bolts. I needed to widen the top two bolts and bend the two lower bolts that go into the cradle together slightly. Both the hydrolic and the solid mounts were special order at autozone when I went, but advance auto had the solid mounts in stock for $31