homemade motor mounts

[FastGT31]

i cant rememeber if it was this site or another but i searched here and couldnt find where to get polyurethane. has anyone here ever bought it and where did you get it from? and if so, how did it work?

[SappySE107]

You can get it in a tube from any hardware store. I haven't used it for bushings but I have used it and its real easy to work with and its definetly stiff once its cured.

[tractorman]

I've used "urethane" glue to glue vehicle windows in place- it comes in a tube like caulk. They'll try to sell you "butyl", which won't work- that shit is just for windshields... it doesn't harden. Urethane sets up real good.

[FastGT31]

found it!

https://www.mcmaster.com

poly resin 8644k11, and many others to chose from

[tractorman]

What's wrong with the stock setup? It's not like these V6's are motormount-eatin' torquemonster bigblocks.

I've never understood all the hype about polyurethane bushings anyway. When the radius arm bushings on my old ford truck went bad, I replaced them with polyurethan bushings. Since then they've squeaked and clunked when it's cold out.

[sharkey]

with a j-body, the mounts suck. they were originaly designed to be used with the low power 1.8l ohv that made 85hp. when the motors got morw powerfull (1.8 &2.0l turbo) and heavy (v6) the mounts never got upgraded.

my car is very clunky (mounts are to soft to keep the motor mounts from bottoming out in itself) and very anoying. with urethane mounts, its a lot stiffer.

im currectly designing my own mounts. stay tuned.

[tractorman]

good to know- is a corsica/beretta a J-body, then?

I can't say I'm too impressed with my '94 corsica's motor mount setupl. I upgraded to the improved '96 design for the top mount, and it's been ok... but the bottom link is a bit loose.

[El_Diablo]

n-bodies are also known for engine movement, when i rev my engine in park it will move the engine a quarter to half inch or more

if you go Here! you can find an engine brace to help with the problem, its still in development but it should be out in a little while

[Guest]

Wow, that looks so ghetto.

But now I have another forum to peruse.

[tractorman]

Heh... that looks like something I'd weld onto a tractor...

That link looks solid- that's gonna shake like a lawnmower.

But it's not a bad concept. If my corsica's mounts give me any more trouble, I could adapt a link or two off a Lumina type setup and hook it to the radiator support.

[El_Diablo]

well the heim joints still allow movement but they cut down a good bit and remember- this is the prototype, things will be different on the finale version

he also has intakes that are alot like some of the others on the market, as well as strut bars

[IsaacHayes]

tractorman: My stock v6 3100 has ripped the upper mount in half. Lower dog bone is trashed, and I'm sure my trans mount isn't in good shape either. I upgraded my uppermount to the 95+ style too, that helped a lot, but now it's about done too. Thinking once it goes, I'm going to get the advance auto parts solid rubber mount, and then get the rksport poly upper insert. If you add dogbone mounts to the radiator support, keep your other stock mounts. The L body radiator support is not a strong struture and will bend/move with the motor.

I've got poly on my swaybar and it doesn't squeak. I've never had poly squeak, but maybe I'm lucky?

[El_Diablo]

if you keep poly greased it wont squeak but it can start to squeak as time goes on or if its not properly greased.....

[tractorman]

You're supposed to grease polyurethane??

Hmmm... that never occurred to me. I suppose I could spray it with some WD40- I'm sure that'd take care of the squeak. Probably not the clunk though- that $hit shrinks when it gets cold.

[Syn]

i made a few of my mounts solid, easy to do too