<VV> JACKING POINTS/Mount failure

[J R Read_HML]

Hank,

The motor mount failures that come to my mind can (many anyway) be traced to 
jacking on the skid plate area.  Your method may be spreading the load 
enough to avoid the problem.  I'm just not willing to test it myself.  I 
doubt that the length of time so supported has a great deal to do with the 
(potential) adverse results.  The rear of the car pretty much weighs the 
same whether supported for 5 minutes, 5 days, 5 weeks - well you get the 
point.

Other failures, AFAIK, were simply the result of old age (of the rubber 
components).

Attachments (if any) are scanned with anti-virus software.

Later, JR

----- Original Message ----- 
From: <kaczmarek at charter.net>
>
> The mount that failed that I recently saw was a result of putting the cup 
> of the floor jack directly ON the mount.
>
SNIP

 By NO means would I recommend supporting the vehicle in this manner for 
more than the minute it takes to place the jackstands.
>
> At any rate I have never had one fail as a result of using this method.
>
> The tip that I believe Tom said about driving up on a couple boards to 
> increase clearance for the floor jack is one I have often used. However, I 
> also have a set of ramps that I use to drive the front end of the car up 
> on, and then remove the incline portion when I am doing a job where the 
> tires can stay on the car.
>
>
>
> Hank
>>
>> From: UltraMonzaWest at aol.com
>> Date: 2005/08/30 Tue AM 10:31:03 EST
>> To: virtualvairs at corvair.org
>> Subject: Re: <VV>JACKING POINTS
>>
>> In a message dated 8/30/2005 7:28:37 AM Pacific Daylight Time,
>> whubbell at cox.net writes:
>>
>> > Absolutely do **NOT** jack the car up by way of any part of the 
>> > powertrain
>> > (Engine/differential/transmission)!!  Doing so will cause your motor 
>> > mounts
>> > to fail -- they were not designed to be compressed in the opposite
>> > direction.
>> >
>> > Bill Hubbell
>> >
>> ******************************************************************************
>> **************
>> NOTE:  this must be true with the newer Replacement mounts........
>>
>> BUT.....over the years I've always used the bellhousing / diff.  for
>> jacking.........with most likely ORIGINAL  mounts....
>>
>> go figure!
>>
>> NOTE:  I've NEVER  had a failed REAR mount....
>>
>>
> _______________________________________________
> This message was sent by the VirtualVairs mailing list, all copyrights are 
> the property
> of the writer, please attribute properly. For help, 
> mailto:vv-help at corvair.org
> This list sponsored by the Corvair Society of America, 
> http://www.corvair.org/
> Post messages to: VirtualVairs at corvair.org
> Change your options: 
> http://www.vv.corvair.org/mailman/options/virtualvairs
> _______________________________________________