Do it Yourself Motor Mounts. Need input

[SkinnyGT]

I'm sure there are a few of you out there that make your own polyurethane mounts and I'm curious as to how you do it. I have prothane mounts on one of my eclipses and they're fairly solid and create a lot of vibration at idle. I'm looking to get away with the vibration somewhat by utilizing OEM mounts and filling in the voids with polyurethane. I have multiple sets of mounts for I4/V6 eclipses and I'd like to start producing mounts for profit and create a basement business for the 3G community. Now I know they sell the polyurethane in liquid but I have no idea where to get it or how much to get. Where do you guys get it? How much is required to do 4 mounts (yes, all mounts are different but a simple estimate will due)?

btw, I'm not interested in the window weld method due to the cheap looking results.

[Kiel]

Get it at Home Depot. Seriously. Just make sure you use some sort of plastic sheet to tape off the bottom/any area it might leak out while it cures. And of course, allow it at least a full 24 hours to cure solid, longer if you have to fill a big void with it. It won't be as stiff a grade of poly as normal poly mounts, but once it cures it will be a lot better than just an OEM mount.

[OMGz Turbo]

The window weld method is the best way, and looks great if its properly done and taped

[OutToWinPAHC]

Check this its from Nico but in general it should work.
http://www.nicoclub.com/articles.php?id=215490

[SkinnyGT]

I was under the impression that the 3M window weld created a sloppy looking job but I guess I'll give it a shot tonight.

[turbotaloon95]

Get it at Home Depot. Seriously. Just make sure you use some sort of plastic sheet to tape off the bottom/any area it might leak out while it cures. And of course, allow it at least a full 24 hours to cure solid, longer if you have to fill a big void with it. It won't be as stiff a grade of poly as normal poly mounts, but once it cures it will be a lot better than just an OEM mount.

If you do this method, use thin layers and let them cure. Then add another layer. I did this with a buddy of mine and filled in the whole mount and the inner layer NEVER cures. So you have a hard outside and squishy inside...weird.

[underpressure02]

I made my own solid mounts for my race car and daily driver out of moly tubing and some plate steel. Works great and does not vibrate that much.

[SkinnyGT]

If you do this method, use thin layers and let them cure. Then add another layer. I did this with a buddy of mine and filled in the whole mount and the inner layer NEVER cures. So you have a hard outside and squishy inside...weird.

Wouldn't multiple layers just create a weak mount that's bound to fall apart?

[BlackTalon95]

Wouldn't multiple layers just create a weak mount that's bound to fall apart?

No, not if you put the next layer on while the previous layer is still tacky.

[Kiel]

If you do this method, use thin layers and let them cure. Then add another layer. I did this with a buddy of mine and filled in the whole mount and the inner layer NEVER cures. So you have a hard outside and squishy inside...weird.

No, not if you put the next layer on while the previous layer is still tacky.

You're absolutely right and I should have mentioned that. It's a lengthy process to do it this way, but it works well if you have the time and are diligent about making sure you add the layer before the previous layer cures.

[delspool]

www.mcmaster.com should have what you need

[Rockstar]

I would barely fill the stock mounts if you do. I did this over a year ago..on my 240sx home depot polyeruthan PL yellow tube. I filled up the stock motor mounts gaps.etc. At idle the interior vibrated a lot and my front end(fiberglass) vibrated A LOT. I bumped up idle a little and it stopped the front end from shaking less, but inside dash still vibrated at idle. Didn't last until winter but I gather cold=even louder.
I ended up getting nismo mounts I can take pics of the motor mount I made,tube of poly if anyone wants. :wiggle:

[underpressure02]

There was a very good write up on vwvortex using the stuff from mcmaster. Let me see if I can find the post.

[underpressure02]

Here are a few good threads if you want to use the mcmaster stuff

http://forums.vwvortex.com/zerothread?id=1188960


http://www.honda-tech.com/showthread.php?t=1168043&highlight=mount+motor+mcmaster


Hope that helps.

[SovXietday]

Sweet, I need to do that to the CRX sometime this year. Too bad the back mount is such a bitch to get.