Hello,

I was doing the rear motor mount in my accord because I was having problems with vibration at idle. I got it out and it appears to be basically perfect. However I can't figure out how this vacuum actuator works. I took off the vacuum part so I could move the lever by hand. It moves perfectly smoothly, with no resistance, so I figured it was broken. I even tried putting into a press but I felt no difference in resistance with either position of the lever.

I bought two TRQ mounts and another cheaper mount. They don't move as smoothly as the OEM one (paint or bad tolerances) but it still doesn't feel like it's actuating something.

Does anyone here know what a good mount is supposed to feel like? I'd like to get my car back so I'm thinking I'll just throw the OEM mount back in if nobody knows what's going on here.

 

I assume that the motor mount that you are referring to is the one from the back of where the engine/transmission bolt together to the firewall?

I only have stick shift Honda.s in that era, but i don't know of any vacuum actuator that would be near that area or that should even be removed to change that motor mount.

Are you sure that you are not looking at the heaters hot/cold valve in the heater core antifreeze line?

Can you send a picture?

Most of those actuators of dash pot style have a rubber diaphragm that move back and forth with a very light spring to help bring it back into position when there is no vacuum present.There should be little or no difference when pushed back and forth with your hand. As long as the diaphragm is not ruptured and losing vacuum, it should be fine. It is easy to bench test. Just suck on the vacuum line and if it holds your tongue to the nipple and does not lose vacuum, it should be fine.

As far as what brand of motor mount, i would have no idea as i have never had to replace one.

 

I believe the engine mount I am dealing with is a bit different from the kind you're talking about. Mine does not have a vacuum diaphragm inside the mount itself, but rather, it has an external diaphragm that actuates a lever on the mount. Here's a video I recorded going over it:
https://imgur.com/8IAXzuV

 

Thanks for the video. I have never seen a mount like hat before. Sorry I am not any help.

 

Fasincating video. I too haven't seen a mount like that. All the 5th gen mounts i've come across use the vacuum on the side to then adjust the fluid inside the mount itself.