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Old 12-30-2013, 02:27 AM   #1
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Default Comp engine mounts of hell

Today I got to installed the mazda comp engine mounts I got from 949. In short, holy baby satan they're horrible. I'm surprised my car didn't fall apart on my trip back to Miami.

So I'm going to be at my parent's till Thursday night before I drive back to Orlando. I really do not want to make the trip with the as it is right. I remember reading a while back some ran a hard mount on the passenger side and a regular on the driver side. It seems to me most if not all the vibration comes from the driver side and though maybe that can help a little.
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Old 12-30-2013, 10:33 AM   #2
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It sounds like you might have another issue or an installation error? I've got the Mazda Comp mounts and I'd argue it's barely noticeable in terms of NVH differences.
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Old 12-30-2013, 10:48 AM   #3
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Quote:
Originally Posted by Scrappy Jack View Post
It sounds like you might have another issue or an installation error? I've got the Mazda Comp mounts and I'd argue it's barely noticeable in terms of NVH differences.
Same here
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Old 12-30-2013, 10:48 AM   #4
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That's... beyond surprising.

Comp mounts didn't seem to create ANY more NVH than the stock mounts on my car. To that point, they also don't seem to suck any less, either.
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Old 12-30-2013, 11:51 AM   #5
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If comp mounts are vibrating too much adding a solid mount to one side is definitely not the direction you want to go.

I'm with the others in assuming there's some other issue going on.
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Old 12-30-2013, 11:55 AM   #6
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Quote:
Originally Posted by pdexta View Post
If comp mounts are vibrating too much adding a solid mount to one side is definitely not the direction you want to go.
I think he's referring to the Mazdacomp mounts as "hard" and asking about running one "soft" (stock) mount just on the side which he judges to be harshest.
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Old 12-30-2013, 12:11 PM   #7
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You're not talking about the super miata comp mounts are you?

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Comp engine mounts of hell-spm_rcmtrmt_na8.jpg  

Last edited by curly; 12-30-2013 at 12:48 PM.
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Old 12-30-2013, 12:13 PM   #8
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Quote:
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You're not talking about the super miata comp mounts are you?

LOL, good question.

I still want someone to tell me that the 70A duro SuperMiata mounts will be bearable on a street car.
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Old 12-30-2013, 12:40 PM   #9
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Quote:
Originally Posted by Scrappy Jack View Post
It sounds like you might have another issue or an installation error? I've got the Mazda Comp mounts and I'd argue it's barely noticeable in terms of NVH differences.
QFT. The MazdaComp mounts only made a small difference that was only noticeable at idle for me.
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Old 12-30-2013, 12:51 PM   #10
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Quote:
Originally Posted by Joe Perez View Post
I think he's referring to the Mazdacomp mounts as "hard" and asking about running one "soft" (stock) mount just on the side which he judges to be harshest.
Yeah, I guess that would make more sense. When I initially read it I thought he was talking about going stiffer.
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Old 12-30-2013, 12:52 PM   #11
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Picture above fixed
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Old 12-30-2013, 12:58 PM   #12
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Mazda Comp Motor Mounts 90-05 Miata

That is what I bought and installed. They're 75 durometer. How could I have installed them wrong. Brackets and mounts were torqued to spec
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Old 12-30-2013, 01:15 PM   #13
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Originally Posted by concealer404 View Post
LOL, good question.

I still want someone to tell me that the 70A duro SuperMiata mounts will be bearable on a street car.
Its just noise. Maybe the NB doesnt harmonize. I wish AWR made that style mount with rubber in it.
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Old 12-30-2013, 01:29 PM   #14
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Hah hah!!!!

Buffon has raging hems!
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Old 12-30-2013, 01:34 PM   #15
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Originally Posted by concealer404 View Post
Hah hah!!!!

Buffon has raging hems!
This? lol not at all... just disappointed that this is turning out the way it did :/

I really can't think of what I could have done wrong. Overtorqued? undertorqued? I used ~40 lb which is what I found somewhere to be the right amount.
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Old 12-30-2013, 01:41 PM   #16
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Those aren't harsh mounts. Something is making contact.
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Old 12-30-2013, 01:46 PM   #17
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Something is WRONG with your install, there is hardly any difference between broken stock mounts and new MazdaComp mounts. I am in Ft. Lauderdale, maybe we can meet up and I can take a look and help? I have them in my car along with eurathane diff mounts, and I noticed the switch to the diff mounts way more than the motor mounts.
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Old 12-30-2013, 01:47 PM   #18
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There's four bolts on each mount, one under the subframe, and three on the block. Then there's the two on either end of the rubber itself. I can't see how any amount of torque, loose or tight, could cause harsh vibrations.

I also don't see how you could of screwed up, short of wedging a screwdriver between the metal cup and subframe.

You'd have to drill and tap the block to mismount that side, and there's only one hole in the subframe. My guess is something is screwy with the mount itself (bad batch? Never heard of it though), or something with the metal cup.

A picture might help us all.
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Old 12-30-2013, 02:05 PM   #19
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Yeah, maybe pictures would help in this case.

Is it possible you didn't torque the nut on the stud from the mount that inserts through the subframe?

Maybe the nut rattled off, and now the mount has flexed it's way out of the notch in the subframe allowing for metal to metal contact between the stud and the subframe? Does it look like your engine is sitting at more of an angle than before?

I know that seems obvious, but like everyone else, I don't know what else it could be.
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Old 12-30-2013, 02:55 PM   #20
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Here are some pictures. All three bolts that connect to the block and the both nuts that connect to the frame are torqued.







Is hard to see in the picture above but the two bolts in front are in. It's hard to get a shot of there rear but is very much in there






Quote:
Originally Posted by MX5RACER View Post
Something is WRONG with your install, there is hardly any difference between broken stock mounts and new MazdaComp mounts. I am in Ft. Lauderdale, maybe we can meet up and I can take a look and help? I have them in my car along with eurathane diff mounts, and I noticed the switch to the diff mounts way more than the motor mounts.
Send me a pm with your info. Where in Ft. Lauderdale are you? I may take you up on that offer

Quote:
Originally Posted by sixshooter View Post
Those aren't harsh mounts. Something is making contact.
There is a video I took only to show that the engine sounds the same from the outside there is no contact with anything. However an unusual amount of vibration is being transferred to the cabin.

Quote:
Originally Posted by curly View Post
There's four bolts on each mount, one under the subframe, and three on the block. Then there's the two on either end of the rubber itself. I can't see how any amount of torque, loose or tight, could cause harsh vibrations.

I also don't see how you could of screwed up, short of wedging a screwdriver between the metal cup and subframe.

You'd have to drill and tap the block to mismount that side, and there's only one hole in the subframe. My guess is something is screwy with the mount itself (bad batch? Never heard of it though), or something with the metal cup.

A picture might help us all.
Pictures above all bolts when in without a fuzz when putting things back together.

Quote:
Originally Posted by sharkythesharkdogg View Post
Yeah, maybe pictures would help in this case.

Is it possible you didn't torque the nut on the stud from the mount that inserts through the subframe?

Maybe the nut rattled off, and now the mount has flexed it's way out of the notch in the subframe allowing for metal to metal contact between the stud and the subframe? Does it look like your engine is sitting at more of an angle than before?

I know that seems obvious, but like everyone else, I don't know what else it could be.
The notch is definitely where it should be. I don't see the engine being at an angle. I wonder if is a bit higher than before though.
Attached Thumbnails
Comp engine mounts of hell-th_img_0818_zps4c2b3cfe.jpg   Comp engine mounts of hell-img_0817_zps7681aa05.jpg   Comp engine mounts of hell-img_0816_zps71016d91.jpg   Comp engine mounts of hell-img_0815_zpse2f0cf61.jpg   Comp engine mounts of hell-img_0813_zps95f3cb76.jpg  

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