finished filling my Engine mounts with pics!!!

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shotgunhunter4
Posts: 205
Joined: Thu Oct 14, 2004 12:08 pm
Car: 240sx

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Alright guys i saw the thread on filling your engine mounts with window sealent (polyurethane) and I knew that mine were pretty bad knowing they had about 145k miles on them. Pulling the Mounts was very easy and only took a few minutes. The tricky part was filling them, because i heard someone say that it was a good idea the layer them. Meaning fill one of the layers let it dry do the next one and so on. I don't know if I just went crazy when i filled them but i went through two tubes of polyurethane on these suckers. I started the process about a week ago and they still havnt completly dried do the amount of sealent on the mounts, but the first layer is pretty hard and i think these mounts are going to be great. Ill keep yoiu guys posted on how it goes down.

Let me know what you guys think. Heres a pic of one of the mounts just cleaned. Just to give you an idea of the layers that im talking about.

Here are the mounts all filled and waiting to dry.

Ps: I got tons a pics, just ask if you want more


j-z
Posts: 2878
Joined: Mon Dec 01, 2003 4:26 pm
Car: 95 240sx

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i used one tube of 3m on mine and it was juuuuuuuust perfect. dont know what youre taking about layering them, and doing several different coats. its all gonna end up being the same hardness so you just wasted a lil bit of time. mine were completely cured in 24 hours and i layed that shlt on in one thick sitting.

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eddiec
Posts: 966
Joined: Sun Dec 28, 2003 11:01 am
Car: 91 S13

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good deal. i also fiiled my motor and transmission mounts. for the motor i drilled holes and injected the urethane into holes, filling the inside with material.

i also did my transmission mounts. heres a before and after pic.

shotgunhunter4
Posts: 205
Joined: Thu Oct 14, 2004 12:08 pm
Car: 240sx

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I read in a different thread that you were supposed to wait till it dried to do the next layer. It may have done nothing, i dont really know. I think what took all the sealent was my trans mount.

Eddiec : Looks really good man, nice work. Looks like you welded a steal plate on the end of the trans mount. But yea looks good.

shotgunhunter4
Posts: 205
Joined: Thu Oct 14, 2004 12:08 pm
Car: 240sx

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I just got these mounts in and let me just say it makes a HUGE difference. Sence i have a stage 2 clutch if I made a bad shift the engine would shake a ton but now it hardly moves at all. Highway is great too now, I feel a lot more connected to the engine. Not to mention starting has improved a lot as well. Just wanted to let you guys know how great these work.

mirra32
Posts: 276
Joined: Mon Sep 06, 2004 11:03 am

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sweet any downsides....vibrations and such???

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hannibal
Posts: 9680
Joined: Wed Sep 11, 2002 2:38 am
Car: Red Line to Glenmont
Location: Washington DC

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yep. more vibration from the motor is transferred into the chassis. The whole point is to keep the motor in a fixed rigid position. Instead of it torqueing(sp?) itself all over, it stays put and sends more power to the wheels and more vibration into the chassis.

shockload
Posts: 232
Joined: Mon May 16, 2005 3:49 pm
Car: 240

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i ran my mounts like that for a long time and they were kinda stiff but nothing special. with less flex the rubber will evanually rip away from the metal tho. it is most practical to use a solid chunk of polyurethane for the motor mounts.

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Checkered-Member
Posts: 1593
Joined: Wed Sep 24, 2003 7:14 am
Car: 1998 Nissan Altima (modded)
2003 Audi A6 2.7T (stock)
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I see people filling there mounts left and right, I just bought inserts, only cost 38 bucks and 30 seconds to install.no mess no fuss,

how much were the tubes?

j-z
Posts: 2878
Joined: Mon Dec 01, 2003 4:26 pm
Car: 95 240sx

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but see, youre fwd so your mounts are designed alot different than us rwd peeps. your design allows you to use pre made inserts to help engine torque movement. we have no choice but to either fork up 230 for all 3 nismo mounts or spend $5-$15 on a tube of urethane. i used one tube of 3m window weld on all 3 of mine. took 10 mins to actually do all the work and then let them sit for 24hours, but that didnt bother me any as my bare block was sitting on my stand. and i know it took longer than 30 seconds to install those fukers. i put some of those on my lude and what a pain in the d!ck! the actuall hard part is gettting the metal mount to slide over the insert part. $15, 10 mins, no mess, no fuss.

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Checkered-Member
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30 seconds to put the inserts into the mount…lol the actual work took 3 hours…I replaced all four mounts.

naed240sx
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Looks pretty good. What kind of poly did you use??

Layering is either a good or bad Idea. I haven't decided. If you layer, the new poly might not bond to the dryer poly as well, and it won't be as solid. I just filled mine up completely, and gave them like 5 days to dry.

You are gonna love them though. From what I can tell by a shake test(grabbing onto the motor with hood open and trying to rock it), they are stiffer than nismo mounts(the motor on nismo's rocked, and my whole car just moved with the engine).

They do still alow movement, but not much. It's fine for daily driving, but nice and stiff.

KATwo40
Posts: 1761
Joined: Tue Feb 01, 2005 9:40 am
Car: 1993 240sx KA-T

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I'll be filling my mounts this week, but not 100% full, as I'd like to retain some road manners, in terms of vibration and such. I think if I fill about half the area, or slightly more, they'll be plenty stiff enough, but still allow for some flex.

Keep in mind, when the engine doesn't flex at all, other parts are more prone to failure, such as U-joints, axles, transmission, etc.

naed240sx
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KATwo40 wrote:I'll be filling my mounts this week, but not 100% full, as I'd like to retain some road manners, in terms of vibration and such. I think if I fill about half the area, or slightly more, they'll be plenty stiff enough, but still allow for some flex.

Keep in mind, when the engine doesn't flex at all, other parts are more prone to failure, such as U-joints, axles, transmission, etc.
Fill them all the way. You will have enough flex left. I get a little bit more vibration at idle, but that is ALL. At any speed, it is smooth as stock. It just gives much more response.

I was worried about how they were going to turn out myself. However, the turned out PERFECT.

They are far from solid, so it's not gonna cause any other failures.

shotgunhunter4
Posts: 205
Joined: Thu Oct 14, 2004 12:08 pm
Car: 240sx

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Yea, about the layering. A lot of people dont seem to be doing it and doesnt seem to matter from what you are saying. You guys are right on with vibrations though. Although there is more vibration, i like it. It really allows you to feal more connected to the engine imo. But I most deffinitly recomend this mod.

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2FourTee
Posts: 282
Joined: Thu Oct 28, 2004 4:16 pm
Car: 96 240sx - Supercharged ka24de

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Just did this over the weekend and I must say it is one of the best mods I have done to the car. Throttle response is great and drivetrain slop feels almost non existant. There is slightly more vibration at idle, but I try not to sit in one place for too long, so I can deal with it.

To fill them up completely, I used almost two full tubes of 3M window weld.

I would recommend letting them dry for at least 48 hours. At the 24 hour point, there were still several spots that were not cured completely.

pancho y onions
Posts: 821
Joined: Tue Oct 11, 2005 10:45 am
Car: 1992 240sx se

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Hmm this looks like a cheaper way of doing this and not spending 250bones. Does any one have a link to where I can buy a tube f ureithane. Thanks guys.

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2FourTee
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Car: 96 240sx - Supercharged ka24de

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I bought mine from Autozone. It's 3M window weld and it's $14 a tube. (I used almost 2 full tubes to finish both engine and transmission mounts.)

A company named PL makes some stuff you can find at hardware stores for $5 a tube, but it is almost twice as stiff as the 3M window weld.

pancho y onions
Posts: 821
Joined: Tue Oct 11, 2005 10:45 am
Car: 1992 240sx se

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Thanks man. Im gonna give it a try once i take ut my whole motor this winter.


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