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Old 07-18-2005, 02:11 PM   #1
Really_Soaked
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Default Harden-your-own bushings

I'm [hopefully] in the final stages of getting my 2.5RS-T project back on the road. Instead of ordering STi hardened bushings, has anyone tried pouring their own?

A friend of mine has a Celica GT4 and did just that. The design of the subaru's engine and transmission bushings are a bit different than his, but I was thinking I could just make a mold out of clay and then pour in the 80A urethane.

What do you guys think?

-Simon
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Old 07-18-2005, 02:24 PM   #2
djerickd
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fill them with 3M Window Weld (do a search). I did my engine, tranny and rear diff mount like this. I feel more connected to the car now.
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Old 07-18-2005, 02:59 PM   #3
White 2.5rs
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hope i dont sound like some richbitch but hardened mounts are only like 175 for group-n stuff

wouldnt u rather have something thats proven for under 200 than attempting to make your own?
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Old 07-18-2005, 03:07 PM   #4
ripvw
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Quote:
Originally Posted by djerickd
(do a search)...
http://scoobymods.com/forums/showthr...6203#post16203

http://www.honda-tech.com/zerothread?id=672359

http://importnut.net/motormount.htm

http://www.superhonda.org/forum/showthread.php?t=204274

the superhonda thread is the most interesting one - and worth reading in my opinion before trying it.

thanks for the suggestion - I had no idea people were doing this...
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Old 07-18-2005, 03:18 PM   #5
Really_Soaked
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wow, I should have got a slap in the face and a "RTFM!"

Ignorant me after being on the board for a long time had just never seen a thread pass. I'm going to follow the scooby mods procedure for the transmission mount and I think I'll give it a shot with making the clay molds.

Thanks guys.
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Old 07-18-2005, 04:17 PM   #6
djerickd
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Quote:
Originally Posted by White 2.5rs
wouldnt u rather have something thats proven for under 200 than attempting to make your own?
My Window Weld urethane was $13...
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Old 07-18-2005, 04:18 PM   #7
Really_Soaked
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^^ Exactly my thinking.
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Old 07-18-2005, 04:18 PM   #8
djerickd
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oh one thing, you have to let it dry for about a week, so try to get someone's stock mounts then mod them, then swap them out after week of drying time, then give your OEM mounts back.
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Old 07-18-2005, 04:19 PM   #9
djerickd
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Quote:
Originally Posted by Really_Soaked
^^ Exactly my thinking.
Plus you get the satification of doing it yourself!
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Old 07-18-2005, 04:20 PM   #10
djerickd
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Old 07-25-2005, 11:47 AM   #11
Really_Soaked
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So I didn't follow any procedure directly, but here's what I came up with:

First I cut all of the rubber out of the mounts and then cleaned thuroughly:


Then I took 1" strips of modelling clay and formed around the edges.

MAKE SURE IT'S WATER TIGHT - Actually pour water in. And then let dry.


When you sit them down, have the bottom resting on the bottom of a container. You can see in this photo the one in the nail bucket is suspended. Eventually it sprung a little bit of a leak from the weight of the urethane.


Looks pretty good to me.


What do you guys think?
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Old 07-25-2005, 01:07 PM   #12
djerickd
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Looks really messy, did they harden up yet?
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Old 07-25-2005, 01:11 PM   #13
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I think that I am wondering if they are going to seperate from the plates easily or not.
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Old 07-25-2005, 07:53 PM   #14
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I welded steel plates onto the sides of my tranny mount. I can hear everything even startup!
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Old 07-25-2005, 08:23 PM   #15
Really_Soaked
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I did a test with two pieces of roughed up steel. 1X1 inch with loops on the ends. I "glued" them together with a 1/4 inch of the same epoxy and they held more weight than I had lying around.

Crappy ascii rendering of the test:

?
------
|////|
------
J

They've hardened a lot, I did the same test with these as the originals by squishing them in a vice. Very noticable improvement.

-Simon
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