I've been wondering hw much movement we're supposed to see with our engines as a result of the fancy hydraulic engine mounts we have. I bought the strut tower bar but haven't put it on yet because my engine moves enough that the alternator will (most likely) hit it. So I began to wonder, is it possible that my mount gone squishy? Do they make a solid (non-hydraulic) engine mount replacement that I could use to limit the amount of engine movement? If so, where can I get one and would there any negatives to doing so other than a little more snap when getting on the gas?

Thanks

If you are seeing that amount of movement..check the other mounts.

http://www.bonnevilleclub.com/forum/...id+motor+mount

i had the same problem even after i replaced the front motor mount and the other mounts were ok and still are ok. i just put some chian around the motor mount and it sloved the problem. the only problem with that is the if you trouqe to much it chan damage the transmission. so take caution in doing this. it is a TEMPORARY FIX TO A LONG TERM PROBLEM. i still have my chain in and have no problems. but it is only a suggestion if you find a place to make a sloid mount please inform me of the place.

I had to custom fab one using Rod Rounds guidance, as he was the first to develop it.
It has worked like a charm for two years.
PDad did the same.
Fixes the flex.

I put my solid mount on tonight, just got back from the test drive. I do feel more of a vibration, but that was expected, nothing major and only on acceleration. I did discover that the car now shakes when I put it into reverse with the brake depressed. My solid mount is between 1/4" and 3/8" shorter than the uncompressed factory mount. Anyone think shimming it up with another 1/8" washer or two would fix that?

I still have some flex when I rock the car too. Not as bad as it was, but not as firm as I was led to believe it'd be. Makes me wonder if maybe my other mounts aren't giving way. Wish I had another member nearby so I could compare them side by side. It'* late for me, I'll take some picks once I get the shims in if anyone thinks that'd be a good idea. Otherwise I'll post some this weekend.

Yes, you will for sure feel the engine vibration in the steering and what not, as the mount is no longer dampning the movement...the car itself now is..heheh
Not really a bad thing, matter of preference, gets rid of that nasty engine flex.

Mine doesn't flex much at all. Very solid.
What did you use for rubber?
Pics?

My flex is a little better, but not much. There'* a suspicion that the rear mount has gone or is going bad. With the front being solid I cant imagine that it'* making life easy on the rear if it'* in a weakened state.

For the rubber, I used some polyurethane "bump stops" from Energy Suspension (#9.914. Another idea is that the rubber is just too hard and not absorbing any of the vibrations. That was the only thing I could find in a size I was comfortable with.

My solid one is a little shorter than the stock one so I'll shim it up a little, maybe there'* too much stress on the rear mount. Regardless of if it'* a bad mount, rubber that'* too hard, or something else, the solid mount is coming out in the morning unless the shims help out. Don't worry, it'll go back in eventually

The urethane bumper should be fine.
Make sure you use 1/8" full washers top and bottom of the mount and also one on the bolt head underneath the frame. You could make a urethane piece to go between the head of the mount bolt and the frame but I didn't. Vibration can go thru the bolt from the engine to the frame.....and very much so if the bolt is not tight.