DIY urethane motor mounts

[cantgo2fast]

I wasnt sure where to put this because its not a true write up but i figured I would share my little project.

I didnt want to pay 100+ dollars for motor mounts or go through the hassle of burning/pressing the stock ones. My driver side motor mount was completely torn in on spot so I decided to fill it using forsch liquid urethane. You can buy it multiple durometers. I went with 60A because I read on a nissan forum that that was a big upgrade but the 80A was pretty solid. Duct tape (becasue its waterproof) the back side VERY heavily then mix the urethane and pour! heres the result.

 

[brian9397gsx]

Looks good I've tried window weld which worked great for a few years but it separates. I finally went with poly mounts which if you have access to a press are easy to pit in I'd say it took me less time pressing them out and in then the cure time plus my kit with all 4 was about 60$.

 

[cantgo2fast]

each one of these kits runs $33 from mcmaster and you could do all 4 with two kits if you dont mess up . so about the same price. I will say that adding the hardening agent is very important so you need a small accurate scale. you can Source one from your local drug dealer...

 

[bastarddsm]

I have found that the windoweld seperates too. What I do is cut a couple blocks of hard plastic to take up some of the space, and glue them in the spaces with window weld. I then fill the spaces in between with window weld. After that, I cut two pieces of 16ga steel to cover both sides. They have a hole cut in them about 1.125" so that there is clearance for the motor mount bolt tube. I also drill a 1/4" hole on each side and a couple 1/8" ones too. I then fill it up with window weld thru the 1/4" until it comes out the 1/8" holes. This allows them to be stiffer, but with some give, and no chance of seperating out. This also fixes the drivers side one when they are shot too.

 

[cantgo2fast]

YA at school we used the window weld on our race car s a dampener for the driveshaft but it didnt hold up to the torque and took forever to cure. This stuff is good to go in about 2 days and stood up better in the driveshaft. I was just putting this out there as another option.