Created By:	Brad Dangerfield	Category:	Engine Suspension/Lowering
Date Posted:	03-13-02	Views:	3286
Title:	Urathane Mounts from stock Motor/tranny Mounts.
Article:	Making your own Urathane mounts involves Removing all the motor mounts from the car. This may be difficult to do, and you may be able to do only one at a time. This is probably something only a well versed mechanic should perform, or an individual with good mechanical skills. The big trick is finding the urethane resin. I know of two suppliers. Grainger's Industrial supply carries a line of "Flexane" (by Devcon) castable urethanes, although they tend to be rather expensive ($50/pint). The better way is to go through McMaster-Carr at: http://www.mcmaster-carr.com McMaster-Carr is a great source for all sorts of odd hardware. Plus - they'll sell/ship online to anyone with a credit card! They carry a generic "flexane equivalent" in two hardnesses: 80 Shore A Durometer - 1lb resin/hardener - p/n 8644K11 ~$19 94 Shore A Durometer - 1lb resin/hardener - p/n 8644K18 ~$19 I've only used the 80 Shore hardness compound. One pound is more than enough to fill all the mounts. Remove the offending mount from the car, being careful to support the engine with something SOLID! Note that over time most hydraulic jacks will seep a bit, and will possibly lower the engine too much, damaging the remaining mounts. I use an old scissors jack for things like this. Use duct-tape to seal off one side of the mount. Place the mount on the bench with the open areas facing up. Mix an appropriate amout of resin according to the instructions. Wait for it to start to thicken (about 10 minutes) and pour it into the gaps in the mount. Wait 12-24 hrs and reinstall. The resin has a working time of ~15 minutes, is basically set up after 3 hrs, and achieves full strength after 2 days. Using this technique you can do the whole car for about $18 plus time.