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Motor Mount - Torque Struts Design

 
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Old 23 Oct 2016, 04:56 pm
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Default Motor Mount - Torque Struts Design

Hello all members. I wanted to discuss further on the different designs of the lower motor mount (lower torque strut or as some call it the "dogbone"). There seems to be more than one design and I think like others would also like to know how each design effects the PT Cruiser.

This thread below got this discussion going and I would like to continue it as I want other members to be aware of what happens when the parts we get are not identical to the original one that comes with the PT Cruiser. However as a member mentioned that sometimes the manufactures changes the design after many years and would like to discuss when and why the design was changed if it was changed for improvements or cost savings.
motor mount, transmission mount and torque struts




Motor Mount 1a.jpeg
As of September 2014 when I purchased the lower motor mount the Chrysler dealer was still selling this design above. I had not found out at that time what the production date was on this part. It remains unclear in our previous discussion whether Chrysler has changed the design since that time.

One member indicated the the extra length might have been made with extra casting so that it bangs into the frame when it tears, thereby warning you it's time for replacement.


Motor Mount 1b.jpeg
This is a design of the lower motor mount on the aftermarket. One member was told it might have been a way to help with harmonic vibrations at very low engine speeds.

Another member indicated the the extra length might have been made with the screw on piece so that it bangs into the frame when it tears, thereby warning you it's time for replacement but is there enough surface to make contact with the frame and make the driver aware of it?


Motor Mount 1c.jpg
A third design that has neither feature in the aftermarket. So it seems all three different designs will work but possibly some has better performance and more features than others.
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Last edited by ptcruisersteve; 23 Oct 2016 at 05:12 pm.
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Old 23 Oct 2016, 06:19 pm
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Default Re: Motor Mount - Torque Struts Design

This is one more design, similar to your pic #2, it has the mounting screws for the extra tab, but the tab is not present.

PowerTorque Mounts A2949 - Engine Mount | O'Reilly Auto Parts



This is from the O'Reilly website and their brand Power Torque, never heard of that brand before as they used to sell Anchor mounts, but the Power Torque part number is A2949 which is a play on the Anchor Industries part number.

The same design mount is carried on AutoZone website under their Rodatech brand name:

http://www.autozone.com/external-eng...?checkfit=true

Last edited by rckstein; 23 Oct 2016 at 06:46 pm.
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Old 23 Oct 2016, 10:15 pm
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Default Re: Motor Mount - Torque Struts Design

i have the third design installed currently without issues
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