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Username Post: Motor Mounts        (Topic#354596)
truck490 
Poster
Posts: 5

Reg: 04-14-14
12-27-18 10:26 PM - Post#2755751    

57 Chevy 383 eng Patriot headers 700r4 griffin radiator w/50/50 mix 3000cfm elec fan side motor mount brackets

Using energy suspension mounts and they’re getting hot enough to ‘melt’ or loose their strength
Local club members suggestion have been timing and or running too lean
Energy Suspension suggested installing a heat shield which I have a design for one BUT this really doesn’t solve the problem of engine getting hot. Temp gauge is not showing excessive temp. This latest set made it to Bowling Green Kentucky from Dallas only
Looking for other ideas this problem is on other sites also
Thank you
Larry



 
Ecklers AutoMotive
Nick P 
Dedicated Member
Posts: 6106
Nick P
Age: 71
Loc: De Queen, Arkansas
Reg: 10-15-03
12-28-18 07:52 AM - Post#2755776    
    In response to truck490

What does ES say about the applied heat? What is the temp being applied?



 
truck490 
Poster
Posts: 5

Reg: 04-14-14
12-28-18 08:33 AM - Post#2755781    
    In response to Nick P

ES response:
Not sure what temp is although I am not overheating and both temp gauges 200 max
Hi Larry,
Our engineering team are going to reject the warranty on these for 2 reasons.
1. These mounts are outside our 2 year manufacturer’s warranty on our products.
2. These were too close in proximity to the exhaust. Our engineering team suggest moving the exhaust at least 2 inches from the mounts and or an aggressive heat shield like the OE’s make. The threshold for our products to be melting is 275-300degrees. This would not be a manufacturers defect cause of failure.

I wish we could help further with this but it is at your discretion to correct or move to another style mount.
Let me know what address you would like us to mail you these mounts back Larry.
Best Regards,
Sean

Sean Crary
Performance & Powersports Sales Manager
Energy Suspension
949-361-3935 x 254
www.energysuspension.com
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Nick P 
Dedicated Member
Posts: 6106
Nick P
Age: 71
Loc: De Queen, Arkansas
Reg: 10-15-03
12-28-18 08:39 PM - Post#2755869    
    In response to truck490

So, how close is your exhaust? What they say seems plausible. And certainly, they should know. Review how OEM heat shields are built and maybe you can deploy this suggestion from them. Are you running headers? If so, this may be a costly solution.



 
acardon 
Ultra Senior Member
Posts: 11201
acardon
Loc: DFW TEXAS
Reg: 03-25-05
12-30-18 08:06 AM - Post#2755979    
    In response to truck490

In another forum, you said you had run the same setup for a long time until recently the motor mounts have failed twice, apparently from heat. I suspect the exhaust heat is the only thing that could have changed.

Don
66 Corvair (driving)
57 2dr HT (driving)
56 2dr HT (waiting to be restored)


 
TR56210 
Poster
Posts: 66

Reg: 10-28-18
12-30-18 12:09 PM - Post#2756008    
    In response to acardon

And your melting both motor mounts??? But your starter is ok? And temp is normal?

Access one of those heat measurement guns to determine how hot is hot.

Wrap the headers. Wrap starter.

Consider replacing temp sensor and temp gauge.

We share the same drive train, 383, 700r4, headers, but old school cooling fan. Not road ready yet. Replacing side motor mounts is really rare. So, interested in what you find and how you fix this.



 
HYPR 
"16th Year" Platinum Supporting Member
Posts: 10753
HYPR
Age: 67
Loc: Shaking and Burning!
Reg: 07-19-01
01-29-19 06:40 PM - Post#2758527    
    In response to truck490

I have never heard of the problem you are having. Perhaps you could post some photos from above and below to show how close they are. From the on set I would recommend changing the headers but until we see how close they are that is at best a wild shot in the dark.
Bob

http://www.cardomain.com/ride/222599
To be born a Redneck is by chance, to live as one is by choice!
Preserving the Redneck tradition one day at a time!


 
Ecklers AutoMotive
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