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DIY Polyurethane mounts!!!

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rollingstock
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Postby rollingstock » December 16th, 2009, 4:01 pm

Tried it, works okay, but wouldn't recommend it for the vrg gdi galant, car idles low because of it being lean burn, as a result got some vibration inside the cabin.

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Postby jeromey » December 17th, 2009, 6:37 pm

jeromey wrote:by bagwansingh in piarco have different brands

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Postby 3stagevtec » April 6th, 2010, 1:27 pm

Project Failed! read below reply

I just gave this DIY bushing thing a try..

The rubber bushing in one of my rear control arm's broke, so i decided to rebuild the entire thing out of 3M urethane. My 1st advice is to wear STRONG gloves.. The thumb on my gloves stuck to the urethane and it easily ripped.. Kerosene, gas and Gojo hand cleaner all failed to get it off.. :(

Another thing is it was pretty difficult to find a good tube of the 3M urethane! I had to exchange 2 tubes and the 3rd one was already starting to cure...

The pics will speak for themselves..

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The old bushing came out pretty easy after a little heat was added..
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Custom mold was made out of mdf..
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A bad tune of urathane
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All packed and set to cure..
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All i need now is some good sun and i should have that sucker back up for some durability testing..
Last edited by 3stagevtec on April 8th, 2010, 1:32 pm, edited 1 time in total.

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God Bless the Black Top*
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Postby God Bless the Black Top* » April 6th, 2010, 1:30 pm

L & G had the liquid urethane, if i need to do this again i would use that instead to save myself some headache.

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Postby MG Man » April 6th, 2010, 1:48 pm

good stuff man :!:

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Postby 3stagevtec » April 6th, 2010, 2:02 pm

God Bless the Black Top* wrote:L & G had the liquid urethane, if i need to do this again i would use that instead to save myself some headache.


what brand did they have? and what branch?

the last i remember, the south branch didn't have any.. but i didn't check them in about a month..

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Postby 3stagevtec » April 8th, 2010, 1:36 pm

Update, the Window weld didn't hold out.. It is way to soft to be used by itself and the inner sleeve was flexing alot, which then caused it to come free from the urethane..

To completely rebuild a suspension mount, i'll need something that dries alot harder! As far as i see, the window weld will only work good to reinforce existing rubber mounts..

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rollingstock
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Postby rollingstock » April 8th, 2010, 1:44 pm

There's different grade of the 3m poly, the problem is sourcing it, the window weld is one of the softer grade available.

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Re: DIY Polyurethane mounts!!!

Postby g@16sunny » May 13th, 2010, 3:26 pm

so doing dis wil cost alot cheaper dan sasco???

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THE SYNDICATE
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Re:

Postby THE SYNDICATE » June 17th, 2010, 5:26 pm

3stagevtec wrote:Update, the Window weld didn't hold out.. It is way to soft to be used by itself and the inner sleeve was flexing alot, which then caused it to come free from the urethane..

To completely rebuild a suspension mount, i'll need something that dries alot harder! As far as i see, the window weld will only work good to reinforce existing rubber mounts..


what u could have done was get a new mount and reinforce that with the urethane! no bursting problems again!

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Re: DIY Polyurethane mounts!!!

Postby 3stagevtec » June 17th, 2010, 9:38 pm

^ all my the factory suspension mounts are solid core..

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THE SYNDICATE
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Re: DIY Polyurethane mounts!!!

Postby THE SYNDICATE » June 23rd, 2010, 8:22 am

3stagevtec wrote:^ all my the factory suspension mounts are solid core..


ohhh i see... :oops:

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Re: DIY Polyurethane mounts!!!

Postby rocky86 » January 23rd, 2011, 10:13 am

why did i not see this before i by new mount next time then

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Re: DIY Polyurethane mounts!!!

Postby Patto » March 20th, 2011, 7:56 pm

I just did my 4 mounts, I got the 3M windshield urethane medium softness at dollar savers on the bamboo i'll post and report how much vibration and how durable it is.

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Re: DIY Polyurethane mounts!!!

Postby flex_ninja27 » March 22nd, 2011, 7:43 pm

yo fellas...busted my rear trailing arm bushings on my '93 teggy....can dis 3m stuff be used on dat??can i apply it wile it is on d car or do i hav to take dem off???can i jus support d cradle wit a jackstand n apply d polyurethane?

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Re: DIY Polyurethane mounts!!!

Postby Patto » March 22nd, 2011, 9:49 pm

Iit can be possibly applied but because of the length of time it takes t dry it is best u take it off the car. For safety sake u should let it dry for about 36 hours. Also there in another post here where someone did their rear say bar bushin, he put up some pics of it.

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Re: DIY Polyurethane mounts!!!

Postby DIS1 » June 7th, 2011, 11:35 pm

You could just go check out Lo-Tec in Trincity. They have urethane in different durometers and diameters which can be machined and installed us in the original casings and sleeves in some instances.
Liquid urethanes are not designed with fillers found in preformed rods and generally will never get to the duro hardness levels required for automotive engine and suspension use.
Poured into the voids of a good mount, they may last and provide some assistance ( support) to the mount but won't stand up for long on their own.

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Re: DIY Polyurethane mounts!!!

Postby rfari » July 13th, 2011, 1:04 am

lovin' this ched. should be a sticky. :evilbat: :evilbat: :evilbat: :evilbat: :evilbat:
i suspect on one my lower control arms busted. will attempt this diy before ordering LCA kit.
recommend for sticky... :evilbat:

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Re: DIY Polyurethane mounts!!!

Postby rfari » July 13th, 2011, 2:45 am

sticky yicky :twisted:
did some research and it has been done with suspension bushings (albeit aftermarket poly bushings). should have some time on my hands to attempts this.

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Re:

Postby groundpilot » October 27th, 2011, 8:44 pm

Slayer wrote:i filled the spaces in all my mounts with the 3M windshield urethane about a year and a half ago for 2 reasons, to decrease engine movement and to extend the life of the mounts.

i'm pleased with the results so far, the increase in vibration felt or heard inside the car is negligible. good cheap mod.

i was advised that i should do all the mounts, packing only one with polyurethane will transfer more stress to the unpacked mounts, don't know if that's true but i did all anyway. one tube did all easily.

why did u wanna decrease engine movement?

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Re: DIY Polyurethane mounts!!!

Postby rfari » October 27th, 2011, 11:53 pm

This weekend if time permits imma try this. I have the polyurethane tube already. Just to take the car by my mechanic to remove the lower control arms and link bars.

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Re: DIY Polyurethane mounts!!!

Postby MISHI » December 3rd, 2011, 9:35 pm

It's a good project and quite rewarding if done properly.

Did this for the CB lancer's two lower mounts in 2005 or 2006 and they held up right up until this year when I swapped the front lower one out for an evo 7 mount. Actually gave the mount to another GSR conversion owner to use...

- of course USE GLOVES!!! this thing doesn't come off simply with anything. Different to OP's post, I took a small drill and cleaned up the open spaces where the rubber on the mount was flaking. But also, I drilled some small holes in the main rubber as well... not many but enough for the 3m windshield product to go through.

- Same procedure as OP, but just let it fill slowly... you don't want any bubbles. Slowly fill the space evenly on each open portion and then when all spaces level, then overlap the entire rubber etc till it is completely filled. Then if you wish, use a small piece of cardboard and smear the urethane into the mount to give it a nice even look, but also to press out any air bubbles...


- But urethane doesn't cure so easily: while it may look to be hard on the outside, it's soft as hell inside... and no oven could completely cure that. Better procedure (though it takes a much longer time) is to place the mount(s) on a rooftop or somewhere the heat radiates during the day... leave the mounts for a week in hot sunny periods and then install. It'll make for a stronger mount.

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Re: DIY Polyurethane mounts!!!

Postby THE SYNDICATE » December 4th, 2011, 6:47 am

^^i used tape on the two pieces of card board i used on the both sides of the mount....it gave a smooth finish as well!

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Re: DIY Polyurethane mounts!!!

Postby BrotherHood » January 9th, 2012, 11:01 am

Are there ready made aftermarket poly bushings being sold?
If so, where can I purchase?

If not, where can I go to have this done?

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Re: DIY Polyurethane mounts!!!

Postby CD4Accord » January 13th, 2012, 12:23 am

Interesting question here, but would Sasco be willing to do a mount rebuild using poly instead of rubber?
A J31 200jk cefiro I have here is currently eating up those Nissan engine mounts.. Less than 4 years service out of them, so it may be best to try something different...
No harm in trying because it really won't cost me very much to attempt..

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Re: DIY Polyurethane mounts!!!

Postby rfari » February 21st, 2012, 11:40 pm

my mechanic finally got the time to help me remove the control arms over the carnival holiday

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front subframe with lower control arms and sway bar links

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control arms removed. the 4 subframe mounts were in ok-ish shape but the rear transmission mounts were in bad shape. these were the only mounts i changed

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new tranny mount. may add some poly to secure it under the rubber cap.

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holes drilled then bushings degreased then dried

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then filled up. not the neatest job but it will work for now.

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one of the subframe mounts filled.

by thursday, the subframe would be re-installed. will update

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Re: DIY Polyurethane mounts!!!

Postby Ted_v2 » March 30th, 2012, 11:23 pm

good stuff

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Re: DIY Polyurethane mounts!!!

Postby ^Pretty^ » May 26th, 2012, 9:13 am

The polyuretthane bushinga can be manufactured.
It's not exactly cheap as the material itself is a bit pricey.
We manufacture the bushings...you can supply the material yourself or we will supply the material.

Abdool's Machine Shop Ltd.....667-5775

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Re: DIY Polyurethane mounts!!!

Postby Dirty Face » July 9th, 2012, 5:35 pm

^^ The best option, the 3M goes over time or worse yet "slides" to one side leaving your stuff off skew, ive learnt this the hard way... :(

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Re: DIY Polyurethane mounts!!!

Postby vega cousin » July 10th, 2012, 1:29 pm

So is there anyone who can bring in engine mounts for a33 cefiro?

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