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Author Topic: Cable Motor Support  (Read 2325 times)
TooManyReels
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« on: July 27, 2013, 06:30:22 AM »

I have seen on some 69 Z-28 ( I believe mid year cars) a cable support/motor restraint kit installed on the drivers side. Was this an original factory installed part or an add on by the dealer to keep the motor from flexing and breaking motor supports.  Does anyone one know of the part number is for this system or what this part is called.

TMR
Eddie
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Eddie
63 Chevy II SS 570hp 560tq.
69 Z28 X33 Cross Ram JL8
Charley
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« Reply #1 on: July 27, 2013, 08:49:56 AM »

It was part of a recall. If you are restoring your car to as built when new it will not have that cable setup.
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TooManyReels
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« Reply #2 on: July 27, 2013, 10:08:08 AM »

Thanks..
Just curious why you see it on some cars and not other ones. Was it due to the breaking of the driver side motor mount. They look kind of cool on the cars I've seen them on..
TMS
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Eddie
63 Chevy II SS 570hp 560tq.
69 Z28 X33 Cross Ram JL8
z28z11
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« Reply #3 on: July 27, 2013, 10:27:24 AM »

Thanks..
Just curious why you see it on some cars and not other ones. Was it due to the breaking of the driver side motor mount. They look kind of cool on the cars I've seen them on..
TMS
Eddie

It believe it was intended to do just that - restrain engine movement in the case of mount separation/failure, plus it would limit rotation (supposedly) to prevent that failure. It was a dealer service bulletin, but I wonder how many left the dealer floor with them added before the sale (after the service notice ?).

My '69 X77's was still on it when I bought it in '73 - I have no way of knowing when it was installed, though. I removed it when I installed headers in '74. I kept my original manifolds to reinstall, plus I have an NOS kit to reinstall the cable when it gets to restoration sometime in 2025 -

Regards,
Steve
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1968 Z28 BRG/W
1969 Z28 X77 LeMans/W
1969 X66 L78 Cortez/BVT
1969 Z11 L48
Ed Bertrand
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« Reply #4 on: July 27, 2013, 10:40:20 AM »

Take a look at REPLY #12.

Ed
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z28z11
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« Reply #5 on: July 27, 2013, 11:27:15 AM »


It was a dealer service bulletin, but I wonder how many left the dealer floor with them added before the sale (after the service notice ?).

My '69 X77's was still on it when I bought it in '73 -
[/quote]

I reckon that solves that - previous owner must have responded to the recall. I still intend on putting mine back on - just the way I drove it in '73.

Thanks Ed -

Regards,
Steve
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1968 Z28 BRG/W
1969 Z28 X77 LeMans/W
1969 X66 L78 Cortez/BVT
1969 Z11 L48
Ed Bertrand
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« Reply #6 on: July 27, 2013, 11:32:14 AM »

Quote
It was a dealer service bulletin, but I wonder how many left the dealer floor with them added before the sale (after the service notice ?).

I'd say none. The recall was issued in December of 1971, long after the first gen Camaro left the dealer lots.

Ed
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rare396bronze
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« Reply #7 on: July 27, 2013, 11:20:18 PM »

Have 68 car 327 one owner car & she say's she received a recall letter to have cable kit installed after she had owned for awhile. Is still on car motor has never been out yet.
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Azure1969Z/28
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« Reply #8 on: July 28, 2013, 09:15:28 AM »

does any one have pics of the cable kit installed on a 69?
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JohnZ
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« Reply #9 on: July 28, 2013, 11:12:15 AM »

<< does any one have pics of the cable kit installed on a 69? >>

See pics below of the restraint and dealer instructions - the recall was announced in December, 1971, and the letter to owners informing them of the recall was dated March, 1972.
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'69 Z/28
Fathom Green
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« Reply #10 on: July 28, 2013, 12:14:23 PM »

I've always wondered if that manner of engine restraint, could possibly cause issues with the control arm shaft.  Does anyone have any information of evidence as to that ever being the situation with any of the cars it was applied to?
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
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BULLITT65
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« Reply #11 on: July 28, 2013, 03:04:14 PM »

I think you would have to be running some pretty crazy horsepower for it to show anykind of wear on that control arm shaft. I have had some big block cars that broke the drivers side motor mount even with it broken it didn't move many inches, just enough to break the fan shroud on one of my cars, but not much more. You would really have to put some effort in to see some major affects.
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1969 garnet red Z/28 46k mile unrestored X77
Looking for 3192477 (front) spiral shocks 3192851 (rear) please
Looking for an original LOF soft ray windshield
Looking for original Delco side post negative battery cable part # 6297651AV
red69
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« Reply #12 on: July 29, 2013, 09:35:53 AM »

In late 72 my 69Z already had headers on it, thus the cable kit would not work, the dealer checked with someone up the chain, and installed new motor mounts. I'm assuming they were interlocking.
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JoeC
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« Reply #13 on: July 30, 2013, 06:26:55 PM »

from what I remember , on the original motor mount, if the molded rubber broke free from the metal, the engine was free to raise up quiet a bit

the redesigned motor mount had a tee shaped metal safety catch built in, so if the molded rubber broke free from the metal, the engine did not raise up as much.

It you replaced the original motor mount with the new design you did not need to reinstall the safty cable.

I remember replaceing some of these when I worked at a service station in high school. The machanic hated doing them so would save them for me to do.
The test for a broken motor mount was to raise the hood, start the car, put it in gear with brakes on, and gas it. Then watch how high the engine would torque up. Looked like the engine would pop out.
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BULLITT65
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« Reply #14 on: August 06, 2013, 11:04:48 PM »

The original owner of my car was so worried about it, besides having the the factory recall one installed, he also had them install a cable on the passenger side! The ironic part of it, is the guy baby-ied the car so much he probably never had the rpms past 4k...lol
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1969 garnet red Z/28 46k mile unrestored X77
Looking for 3192477 (front) spiral shocks 3192851 (rear) please
Looking for an original LOF soft ray windshield
Looking for original Delco side post negative battery cable part # 6297651AV
69Z28
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« Reply #15 on: August 06, 2013, 11:33:49 PM »

Same here. The 45000 mile survivor 69 Impala I bought has one on each side too. What are the chances the motor mounts are not broken.
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GaryC

'UNRESTORED' 1969 Cortez Silver X33D80 Z28
Azure1969Z/28
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« Reply #16 on: August 07, 2013, 09:22:59 PM »

Is it even possible to drive a 302Z and keep it under 4K rpm Huh Difficult at best!
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BULLITT65
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« Reply #17 on: August 08, 2013, 03:03:47 AM »

he may of, he was just very particular about the car. He documented every mile and fill up, and for the last 5 years he owned it anytime he started it up he took notes.....BUT .I can tell you that I have had it humming at 7k and loved it. ( I do still document every mile in his original journal) why break with tradition , ya know?
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1969 garnet red Z/28 46k mile unrestored X77
Looking for 3192477 (front) spiral shocks 3192851 (rear) please
Looking for an original LOF soft ray windshield
Looking for original Delco side post negative battery cable part # 6297651AV
Rich69s
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« Reply #18 on: March 29, 2014, 10:19:56 AM »

Hello everyone, is the finish on the cable pin and bracket natural metal finish  or zinc plated ?

 Thanks , Rich
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1969 L 48 SS Frost Green taken apart in 1979 resurrection forthcoming
1969  Yenko  Purchased 1981 with my student loan check
BULLITT65
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« Reply #19 on: March 29, 2014, 11:32:08 AM »

Looking at mine, it looks to be zinc or cad.
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1969 garnet red Z/28 46k mile unrestored X77
Looking for 3192477 (front) spiral shocks 3192851 (rear) please
Looking for an original LOF soft ray windshield
Looking for original Delco side post negative battery cable part # 6297651AV
firstgenaddict
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« Reply #20 on: March 29, 2014, 01:47:58 PM »

Here is a copy of the letter.
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James
Collectin' Camaro's since "Only Rednecks drove them"
 
Check out the Black 69 RS/Z28 45k mile Survivor and the Lemans Blue 69 Z 10D frame off...
https://picasaweb.google.com/112392262205377424364/1969_Z28_Restoration
KurtS
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« Reply #21 on: April 06, 2014, 10:23:18 PM »

The cable is a band-aid at best. GM did it as a cost-avoidance - a lot more expensive to replace the engine mounts. Note that Red69 had the proper repair done, by GM.

IMO, the cable should not be on a restored car. Just use the right engine mounts.
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Kurt S
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Stingr69
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« Reply #22 on: April 07, 2014, 03:37:14 PM »

If you ever had the "experience" of driving a first gen with the original mount failed you would remember it.....as long as you survived it. Smiley

The throttle linkage would bind in the WOT position and the car would just roar away down the road ..... nothing short of turning off the ignition key would stop it. WHEEEE!!!!!!

It just looked like some stupid add-on to me when I looked under the hood so why leave it on there?Huh? I just threw it in the trash.  -HA!  NOW I KNOW WHY IT WAS PUT THERE.

-Mark.
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