Club Cobra Keith Craft Motorsports  

Go Back   Club Cobra > Manufacturers, Engine Builders, tools, and parts. > ERA---Speak with Bob Putnam

Welcome to Club Cobra!  The World's largest non biased Shelby Cobra related site!

  •  » Representation from nearly all Cobra/Daytona/GT40 manufacturers
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and nearly 1 million posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

Nevada Classics
MMG Superformance
Main Menu
Module Jump:
Nevada Classics
Nevada Classics
MMG Superformance
Advertise at CC
Banner Ad Rates
MMG Superformance
MMG Superformance
MMG Superformance
January 2021
S M T W T F S
          1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31            

Kirkham Motorsports

Like Tree2Likes
  • 1 Post By Moriarty
  • 1 Post By Gaz64

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 07-20-2020, 02:20 PM
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2018
Location: Seattle, WA
Cobra Make, Engine: ERA 427sc
Posts: 77
Not Ranked     
Default Motor mount bushing

Not sure if this is ERA specific, but since that's what I have I figure this is a good place to start.

Maybe there is a more common name for this, but I'm looking to replace the bushing on the long loose bolt that connects the engine to the frame on the driver's side to dampen engine vibration / absorb torque when rev-ing.

The one the vehicle came with was a nice red, shaped like a small inline rollerblade wheel.

I replaced it last year when all I could find was a black rubber bushing about the same size. That has now destroyed itself already.

I found a DIY polyurethane video online for replacing the rubber mounts in stock BMW mounts, but those come with metal inner and outer wrappings that you can use to just fill up. I guess I could make my own mold, but figured I should ask here first to see what others are doing.

Thanks!
Reply With Quote
Sponsored Links
Sponsored Links
  #2 (permalink)  
Old 07-20-2020, 02:47 PM
CJ428CJ's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2000
Location: Livermore, CA
Cobra Make, Engine: ERA #629, BBM Side Oiler Block, 482ci, Richmond 5 speed
Posts: 828
Not Ranked     
Default

I think we need more details. It sounds like you may have a torque strap which is designed to keep the engine from lifting up on the left side when you get on the throttle. They're not a standard ERA item. Perhaps you could upload a photo which would help.
Reply With Quote
  #3 (permalink)  
Old 07-20-2020, 03:21 PM
Grubby's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Nov 2007
Location: Clayton, IN
Cobra Make, Engine: ERA 838 under construction, ERA 755 sold, ERA 178 sold
Posts: 797
Not Ranked     
Default

I used the DIY kit and made polyurethane motor mounts.

Yours sounds like a non-typical ERA set up.

John
Reply With Quote
  #4 (permalink)  
Old 07-20-2020, 03:46 PM
patrickt's Avatar
Half-Ass Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 20,521
Not Ranked     
Default

Snap a pic of what you used to have and post it. That doesn't sound stock.
Reply With Quote
  #5 (permalink)  
Old 07-20-2020, 03:52 PM
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2018
Location: Seattle, WA
Cobra Make, Engine: ERA 427sc
Posts: 77
Not Ranked     
Default

Swung by the parts store to pick up a new one which reminded me that the "shock absorbing bushing assortment" pack I had bought previously didn't have any of the right size and shape, so I wound up using the rubber insert from an expansion plug replacement. Maybe that's why it didn't last long. Here is a pic without the bushing, and with a new replacement from the $3 expansion plug I'll be using for now.
Attached Images
 
Reply With Quote
  #6 (permalink)  
Old 07-20-2020, 04:26 PM
patrickt's Avatar
Half-Ass Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 20,521
Not Ranked     
Default

Well that looks like it helps the engine from torquing over... but I ain't got one on my FE.
Reply With Quote
  #7 (permalink)  
Old 07-20-2020, 05:24 PM
DanEC's Avatar
CC Member/Contributor
Visit my Photo Gallery
Gold Star Contributor
 
Join Date: Apr 2009
Location: Central, AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
Posts: 4,207
Not Ranked     
Default

There is an ERA recommended modification of the driver side engine mount that is intended to accomplish the same thing. Involves drilling the mount across the isolator and installing a bolt to lock the two together so torque movement is restrained.
__________________
ERA 782 Running
https://www.youtube.com/watch?v=Cfge...b1-77fqwFRu7c]
Reply With Quote
  #8 (permalink)  
Old 07-20-2020, 09:00 PM
Gaz64's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2008
Location: Brisbane, QLD
Cobra Make, Engine:
Posts: 2,576
Not Ranked     
Default

Quote:
Originally Posted by Moriarty View Post
Swung by the parts store to pick up a new one which reminded me that the "shock absorbing bushing assortment" pack I had bought previously didn't have any of the right size and shape, so I wound up using the rubber insert from an expansion plug replacement. Maybe that's why it didn't last long. Here is a pic without the bushing, and with a new replacement from the $3 expansion plug I'll be using for now.
I would fit a cup washer, even a welch plug with a hole in the centre, to retain the OD of the bush. Your current flat washer will just split the bush you have now.
__________________
Gary

Gold Certified Holden Technician
Reply With Quote
  #9 (permalink)  
Old 07-21-2020, 12:14 AM
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2018
Location: Seattle, WA
Cobra Make, Engine: ERA 427sc
Posts: 77
Not Ranked     
Default

A quick Google search for cup washers led me here:
"APS Barrel Skateboard Bushings | RipTide Sports Inc." https://www.riptidesports.com/longbo...el/aps-barrel/

Never considered using skateboard tech, but that might fit the bill perfectly. Thanks!
Reply With Quote
  #10 (permalink)  
Old 07-21-2020, 09:09 AM
Grubby's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Nov 2007
Location: Clayton, IN
Cobra Make, Engine: ERA 838 under construction, ERA 755 sold, ERA 178 sold
Posts: 797
Not Ranked     
Default

Quote:
Originally Posted by DanEC View Post
There is an ERA recommended modification of the driver side engine mount that is intended to accomplish the same thing. Involves drilling the mount across the isolator and installing a bolt to lock the two together so torque movement is restrained.
I found the ERA motor mount modification to only be a partial fix. I have seen several ERAs including both of mine that the headers lightly contacted the body.

My solution was to make up polyurthane mounts and do the ERA mod. It seems to work.

The compression of RH mount and expansion LH mount during hard acceleration seems to be the problem. The modification only helps the expansion of the LH mount.

John
Reply With Quote
  #11 (permalink)  
Old 07-24-2020, 04:23 PM
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2018
Location: Seattle, WA
Cobra Make, Engine: ERA 427sc
Posts: 77
Not Ranked     
Default

Now with skateboard bushing and cup washer:
Attached Images
 
rads42 likes this.
Reply With Quote
  #12 (permalink)  
Old 07-25-2020, 04:47 AM
Gaz64's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2008
Location: Brisbane, QLD
Cobra Make, Engine:
Posts: 2,576
Not Ranked     
Default

Looks nice and professional now.
Keep an eye on it now.
Gary
rads42 likes this.
__________________
Gary

Gold Certified Holden Technician
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 04:44 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy
Links monetized by VigLink