bc3tech
May 16th, 2007, 12:21pm
First, some pictures to show what you'll be needing
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall004.jpg
A jack with jack stands. If you can get 3 stands that's optimal, otherwise just make sure the jack doesn't give out (quickly or slowly) when you leave weight on it for a long time. Also make sure you have a socket wrench and (optional, but makes things easier) 3-4" extension.
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/IMG_1477.jpg
3/4", 11/16", and 5/8" sockets
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall018.jpg
A tube of 3M windo-weld or other Urethane filler. One tube can fill both of the mounts in this document.
First, start off by jacking up the car (in the right places) and supporting it with the jack stands
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall005.jpg
This picture shows where I placed the stands and 3 of the bolts you'll need to access (so don't place jacks around them)
Next, we'll tackle the front mount. Looking down into the engine bay, here's what you'll see:
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall002-1.jpghttp://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall001-1.jpg
When you get under the car and front mount, remove the highlighted bolts (left and right sides)
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall007-1.jpghttp://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall009-1.jpg
As well as the bolt you could see when looking down onto the mount from the top of the engine bay
Now find a place to support the engine that will be out of your way while removing the rear mount. Here's where I put my jack:
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall008-1.jpg
This is one of those "do as I say, not as I do" moments. You should never use a jack to support a large weight for an extended period of time. It is much better to have a jack stand do this for you. However I'm a cheap bastard and jacks only come in sets :D
Now when you slide back in there, you'll see the 2nd mount as well as the side-bolt that needs to come out:
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall011-1.jpg
And the three bolts on the bottom that I highlighted earlier
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall012-1.jpg
Remove all the attachings. MAKE SURE YOUR ENGINE IS SUPPORTED. As you take out the side bolt of this rear mount, your engine will "settle" and come down a bit, so make sure nothing slips out or it won't be good.
When you're all done w/ this one, you can take them both out:
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall013-1.jpg
Now just fill the inner parts with the urethane from the tube and let sit for a good 60 hours. I let mine go for 72 and they were rock hard. You will definitely notice a difference in hardness from 24-48 hours so I suggest absolutely no less than 48.
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall018.jpg
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall017.jpg
Keep in mind that air bubbles in the injected urethane will expand and contract w/ the temperature and make your molds crack and fall out. For this reason, stick as close as you can to "injecting" the urethane into the mounts vs "layering" it in there as you go around and around. By using injection you'll avoid any bubbles. Also, some have suggested doing this in layers with 3-4hr between sessions, not a bad idea, but I didn't do that (cuz I can't wait that long w/ something unfinished).
When you're done, reverse steps to install the mounts back in, and fire up your car! if all is well, when you start up, and at low idle (< 1000rpm) you'll notice a SIGNIFICANT amount of vibration throughout the chassis. However at speed I have noticed nothing out of the ordinary.
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall004.jpg
A jack with jack stands. If you can get 3 stands that's optimal, otherwise just make sure the jack doesn't give out (quickly or slowly) when you leave weight on it for a long time. Also make sure you have a socket wrench and (optional, but makes things easier) 3-4" extension.
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/IMG_1477.jpg
3/4", 11/16", and 5/8" sockets
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall018.jpg
A tube of 3M windo-weld or other Urethane filler. One tube can fill both of the mounts in this document.
First, start off by jacking up the car (in the right places) and supporting it with the jack stands
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall005.jpg
This picture shows where I placed the stands and 3 of the bolts you'll need to access (so don't place jacks around them)
Next, we'll tackle the front mount. Looking down into the engine bay, here's what you'll see:
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall002-1.jpghttp://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall001-1.jpg
When you get under the car and front mount, remove the highlighted bolts (left and right sides)
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall007-1.jpghttp://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall009-1.jpg
As well as the bolt you could see when looking down onto the mount from the top of the engine bay
Now find a place to support the engine that will be out of your way while removing the rear mount. Here's where I put my jack:
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall008-1.jpg
This is one of those "do as I say, not as I do" moments. You should never use a jack to support a large weight for an extended period of time. It is much better to have a jack stand do this for you. However I'm a cheap bastard and jacks only come in sets :D
Now when you slide back in there, you'll see the 2nd mount as well as the side-bolt that needs to come out:
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall011-1.jpg
And the three bolts on the bottom that I highlighted earlier
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall012-1.jpg
Remove all the attachings. MAKE SURE YOUR ENGINE IS SUPPORTED. As you take out the side bolt of this rear mount, your engine will "settle" and come down a bit, so make sure nothing slips out or it won't be good.
When you're all done w/ this one, you can take them both out:
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall013-1.jpg
Now just fill the inner parts with the urethane from the tube and let sit for a good 60 hours. I let mine go for 72 and they were rock hard. You will definitely notice a difference in hardness from 24-48 hours so I suggest absolutely no less than 48.
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall018.jpg
http://i92.photobucket.com/albums/l22/bc3tech/Motor%20Mount%20HowTo/MotorMountInstall017.jpg
Keep in mind that air bubbles in the injected urethane will expand and contract w/ the temperature and make your molds crack and fall out. For this reason, stick as close as you can to "injecting" the urethane into the mounts vs "layering" it in there as you go around and around. By using injection you'll avoid any bubbles. Also, some have suggested doing this in layers with 3-4hr between sessions, not a bad idea, but I didn't do that (cuz I can't wait that long w/ something unfinished).
When you're done, reverse steps to install the mounts back in, and fire up your car! if all is well, when you start up, and at low idle (< 1000rpm) you'll notice a SIGNIFICANT amount of vibration throughout the chassis. However at speed I have noticed nothing out of the ordinary.