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Re: Logevity of Scan-Tech engine mounts?

Did you restrict the motion of your lower mounts at all? Like this?

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No I did not. > If not then yes they do fail pretty quickly in manual trans cars. The > use of stiffer aftermarket urethane bushings in the upper torque bracket > also helps to reduce the engine rocking (and subsequent lower hydraulic > mount failures) at the expense of a bit more engine vibration being > felt, mostly at idle.

I doubt very much that the original (OE) mounts would have failed within

16,000km (10,000mi). I conclude that the Scan-Tech parts of inferior quality.
Reply to
ShazWozza
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That wouldn't surprise me, I've had a mixed bag when it comes to Scan-Tech, but sometimes they're the only route you have.

Reply to
James Sweet

Elsewhere I've heard less than complimentary comments about polyurethane bushes generally.

Graham

Reply to
Pooh Bear

I didn't use urethane bushes. They have their place but in my opinion not in applications where rubber was OE specified for NVH purposes.

Reply to
ShazWozza

OK. it was Fred who gave me that idea.

Graham

Reply to
Pooh Bear

You have not yet determined conclusively that the engine mounts failed. You just said there is increased motion. The whole point of the hydraulic type engine mounts is to allow motion to dampen the generous amount of engine vibration the 4 cylinder engines produce. My guess is the motion is as a result of the torque bracket bushings rather than the engine mounts.

As an aside, I have used many Scan-Tech parts over the years and never had any problem with inferior quality. That certainly does not mean that you did not get some bad parts this time though...

Reply to
Fred W

Scan-Tech makes only the OE style rubber bushes. The urethane bushings are quite superior, but transmit more vibration. I would only use them on the torque bracket. I don't think they make any engine mounts from urethane.

Reply to
Fred W

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