LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Anyones Jethot Lts rubbing k member

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Old Apr 2, 2003 | 02:36 AM
  #1  
unTAmedLS1's Avatar
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From: Glenview,Illinois,USA
Anyones Jethot Lts rubbing k member

My headers are rubbing the k member on pass side and I dont think there is anyway about going around it anyone have this problem?
Old Apr 2, 2003 | 03:08 AM
  #2  
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From: Newark, DE
What condition are your motor mounts in? May want to take a look, to see if your motor is sagging a bit. Do you have an aftermarket trans mount? I don't have Jet Hots but I know installing headers and changing plugs SUCKS, so I'm thinking of getting a tubular k-member.

Good luck,
JR
Old Apr 2, 2003 | 03:29 AM
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From: Kissimmee/Orlando, FL
Yep, I did about a year ago with my Hooker LT's and everyone told me I was nuts. I had replaced both motor mounts during the install FWIW.

Anyways I ended up grinding down the offending portion of the K-member to make it clear. Not very elegant but as you said, there's not much else you can do.
Old Apr 2, 2003 | 08:46 AM
  #4  
ShelbyZ28's Avatar
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From: Lafayette, Indiana
Originally posted by Soma07
Anyways I ended up grinding down the offending portion of the K-member to make it clear. Not very elegant but as you said, there's not much else you can do.
Same situation here. I ended up having to grind down the K-member so the header would quit rubbing. Its just about the only option.

Bryan
Old Apr 2, 2003 | 10:14 AM
  #5  
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From: Round Rock, Tx.
Originally posted by FastGuyJR
What condition are your motor mounts in? May want to take a look, to see if your motor is sagging a bit.
Just out of curiousity, what do you mean by checek to see if you motor is sagging a bit? How would a motor sag? When I put in my longtubes I had problems because my car had been in a wreck before I bought it and I had thoughts about how the motor would sit on the Kmember funny and noticed that the motor mount bracket on the pass side was bent a little. I put another one on it and it helped some. I still think that the motor sits a little funny ( I know the kmember is crooked from the accident. It is going to a frame straightner for that).

Just curious if you know something more that I don't.

In reguards to the hedders rubbing. I spaced the motormount away form the kmember using shims and locktited the bolts back in place. It's been like that for the last 2 1/2 years and I have had no issues with it since.

Scott
Old Apr 2, 2003 | 12:26 PM
  #6  
user guest 45's Avatar
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only my passenger jet hot header is rubbing...i really feel it when im at a light... what are the options to fix this?
Old Apr 2, 2003 | 01:16 PM
  #7  
unTAmedLS1's Avatar
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From: Glenview,Illinois,USA
Super ta that is my exact prob only at idle. Because thats when you get the most vibration and the engine doesnt twist. Its a PITA but Ill just end up grinding down k-member I guess. Damn those things were a b*&** to put in too. Well just the pass side cuz I have a t-56
Old Apr 2, 2003 | 05:59 PM
  #8  
FastGuyJR's Avatar
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From: Newark, DE
Solid95: Check out this page, LJ had poly motor mounts that melted and caused his engine to lean to one side. I would think if this happened to both sides, the motor would sag.

http://para.noid.org/~lj/Boom8/boom8.htm

Pz,
JR
Old Apr 2, 2003 | 06:36 PM
  #9  
95CamaroZ-28's Avatar
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From: Maryville, TN
Originally posted by solid95z
...How would a motor sag?...

The motor mounts are solid rubber sandwitched between metal. The rubber mashes down with age which allows the motor to "sag". Also, if your K-member is bent, you should probably look at getting another member instead of attempting to bend your's back.
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