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"Life is what happens when you're busy making other plans"
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Bad Engine Mounts
Thursday, 12 March 2009 20:15

Well it seems it just wouldn't be right if I wasn't back under a Buick changing engine mounts again. This time its the GN's turn - the driver side engine mount came apart. I guess it lasted ok, being oh, 23 years old.

 So what does a bad engine mount look like? Well engine mounts are generally a block of rubber sandwhiched between two metal plates. Usually you'll see a crack/rip/tear/etc in the rubber, or if oil leaked onto it - the rubber may be mushy and melted looking.

 That said, here's whats really happening when your engine mount is no longer holding the engine in place.

 

 

While the mount looks fine just sitting there, you can clearly see the engine lift off the rubber when it flexes. Note that this was done in a driveway and the camera was left underneath the car - nobody should ever be under a car while it's running.

New Polyurethane motor mounts from RJC Racing are on their way! Not cheap though, but at this point, not much more than GM replacements.

Note: Regarding replacement mounts - why wouldn't I just go to Autozone or Pep Boys and buy the $10 ones? On my old car, which was a wimpy NA Regal, I went through 8 mounts before just buying the GM ones. The GM ones last way much better, but unfortunately at this point are an old part and cost nearly $200 for a replacement set from GM Parts Direct, more than $250 from a dealer!