DIY: Motor Mount Injection (PIC Heavy)

[blueroadster]

This is a continuation from a previous thread. Here are the DIY instructions for injecting your motor mounts to stiffen them up to reduce engine torque, wheel hop, etc.

Materials needed:

1. Stock Bottom Torque Rod Part Number: 50890-SVB-A02
2. Stock Dogbone Torque Rod Part Number: 50880-SVB-A02
3. Urethane to Inject the Mounts: I used 3M Window Weld (65A shore grade hardness).
4. Caulk Gun: Used for injecting the 3M Window Weld urethane.
5. Rubbing Alcohol: Used to clean the stock mounts, your hands, and any other items that the 3M Window Weld comes into contact with.
6. Razor Blade: Used to cut out the excess rubber on each stock motor mount.
7. Putty Knife: Used to smooth the 3M Window Weld after applying to each stock motor mount.
8. Paper or Plastic Plate: For making rings on the stock motor mounts to prevent the urethane from bleeding out the other side.
9. Tape: To secure the paper or plastic ring to each motor mount.

Procedures:

Here is a PIC of the two engine torque rods (upper and lower) where urethane will be injected:



Use a razor blade and cut out the excess rubber on the inside of the stock motor mounts so that the injection material adheres better (also cut off the little nubs protruding from the surface). Once complete, clean the entire rubber mount with rubbing alcohol to remove grease, etc.



Use a paper or plastic plate and cut a ring to install on one side of each mount like in the below PIC.



Use some tape to secure the ring to each mount to prevent the injection material from exiting the other side.



Flip each stock motor mount over and inject with 3M Window Weld using a caulk gun. When doing so, jam the tip of the 3M Window Weld in each corner and fill until it bleeds up to the top and slowly pull up when filling (this will reduce air pockets). Once you have injected one of the mounts, use a putty knife to smooth the surface and then do the same thing to the other mount. This is also a good time to clean your hands and anything else with rubbing alcohol and a rag. Once the first mount is done, follow the same steps with the second mount. Once complete, both mounts should look like the ones in the below PIC.



Let the parts sit for at least 24 hours to start curing. Once complete, remove the tape shown in the fourth PIC. You can then also peel off the excess urethane as can be seen in the below PIC:



Below is a PIC of both mounts completed.



Here is a PIC of the back side of each mount.



At this point, you should wait about another 24 hours before removing the rings that were installed in the third PIC. Here is a PIC showing the rings after being removed (some of the 3M Window Weld did not dry and was stuck to the back of each ring):



Next, apply more 3M Window Weld where the rings have been removed and smooth the surface with a putty knife. Here is a PIC:



Finally, wait several more days for the urethane to fully cure (I'd suggest letting them cure for about 5-7 more days until you are certain that they are good to go), peel off any excess urethane, and then install the mounts on your car.

When installing the mounts, use the following images to acquire the torque specifications.

Upper Torque Rod:



Lower Torque Rod:

NEED TO FIND AN IMAGE

[07mugencivic]

nice DIY

[GeezerSi]

results...

[J-Ro]

Wicked.... that's an easy DIY too. Good write-up!

[gmoneyhobbit]

to bad this mod will keep you immobile for up to a week

[Supercharged]

^ buy some extras? make your mounts replace yours and make some more and sell them? lol

[blueroadster]

Originally Posted by Supercharged

^ buy some extras? make your mounts replace yours and make some more and sell them? lol

That is why I bought some extras...I actually have two sets right now not counting the ones on the car.

[Ihockey1]

u plan on selling the extras

[mad monkey]

Very nice blue... I'm looking forward to seeing your feedback of how they feel. +1 for blue...

[Si Speed 317]

Nice! In for feedback

[K20Redline]

Blue more imaginary rep for ya! so when are ya gona let us know how these puppies do? Your probably gona let it sit for a day or two?

[mike_si_29]

Excellent job.... let us know how it feels....

[blueroadster]

Originally Posted by Ihockey1

u plan on selling the extras

Of the two sets that I have, I'm planning to keep one to use on my car. I'd like to sell the second set to someone local so I can help install and feel how well they work.

You can buy the two mounts brand new for about $120.00 shipped. After purchasing the rest of the materials needed, you should be out no more than $150.00. If I were to make more for someone else, I'd probably ask $200.00 for the set to cover my time, shipping, and packaging.

[blueroadster]

Originally Posted by K20Redline

Blue more imaginary rep for ya! so when are ya gona let us know how these puppies do? Your probably gona let it sit for a day or two?

It will likely be about two more months before I am able to test them on my car (still waiting for the build project to be completed). I'm hoping that a local person would be willing to try and buy the second set that I have and can report back before then.

[Si Speed 317]

Nice, thanks for getting back to us so soon. I'll wait for feedback from someone before I attempt this DIY. Can you put part numbers in the first post?

[blueroadster]

Originally Posted by Si Speed 317

Nice, thanks for getting back to us so soon. I'll wait for feedback from someone before I attempt this DIY. Can you put part numbers in the first post?

No problem...I'll post the part numbers later today. They are items 6 and 7 in the below PIC that are on the "Engine Mounts (2.0L) (MT)" component page.

[Si Speed 317]

The ETD from... whichever company makes them lol (P2R?) is just part number 6 from the above diagram, so technically if we do this mod to just that, it would work as well right?

[K20Redline]

Originally Posted by blueroadster

It will likely be about two more months before I am able to test them on my car (still waiting for the build project to be completed). I'm hoping that a local person would be willing to try and buy the second set that I have and can report back before then.

Im down to do it if you want Ill pay for the shipping. But if you know someone local dat would be a better idea too?

[blueroadster]

Originally Posted by Si Speed 317

The ETD from... whichever company makes them lol (P2R?) is just part number 6 from the above diagram, so technically if we do this mod to just that, it would work as well right?

Yes, it is sold by Ingalls but the dogbone replacement is actually called the Power Stick; the ETD is a different Ingalls item. I bought one a while back, never installed, and just posted it for sale here. Injecting that one mount would do the same thing as the Power Stick, but I'd imagine that the Power Stick is more stiff since the polyurethane bushing used is a lot smaller than the bushing in the stock mount.

[Si Speed 317]

Ah, thanks blue. I meant Ingalls Do the Power Stick and ETD replace both stock mounts like you did above? Meaning one replaces one, the other replaces other