 Sagging engine lid, age |
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| 930cabman |
 Sep 1 2022, 06:47 PM
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#1
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Advanced Member  Group: Members Posts: 3,007 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States 
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Most of us humans get saggy after several decades, but my engine lid will not stay in the upright position. All looks ok, I can't imagine the torsion bars lose their power?
TIA |
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| Superhawk996 |
Sep 1 2022, 06:52 PM
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#2
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914 Guru Group: Members Posts: 5,777 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch
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Look at hinges - probably has broken spot welds and separating from rear bulkhead.
That is the usual cause. These  |
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| tygaboy |
Sep 1 2022, 06:52 PM
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#3
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914 Guru Group: Members Posts: 5,282 Joined: 6-October 15 From: Petaluma, CA Member No.: 19,241 Region Association: Northern California
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Check the "L" brackets to which the lid bolts. Dollars to donuts one or both are cracked and pulling away from the fire wall. Pretty common.
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| TX914 |
Sep 2 2022, 05:24 AM
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#4
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Alan-B Group: Members Posts: 167 Joined: 27-July 14 From: USA Member No.: 17,689 Region Association: None
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I think the torsion bars can lose their strength over time. If the hinge brackets are okay, try swapping the torsion bars so that they bend in the opposite direction. This worked for me. For extended periods I leave the engine lid open (covered in garage) so it's under less tension. I also leave the targa top latches undone (rears hooked) so the top seals are not compressed.
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| Front yard mechanic |
Sep 2 2022, 07:02 AM
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#5
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Senior Member Group: Members Posts: 1,157 Joined: 23-July 15 From: New Mexico Member No.: 18,984 Region Association: None
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Sagging is usually not the problem, it’s the hairy and closer to the the ground that bothers me
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| 930cabman |
Sep 2 2022, 09:07 AM
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#6
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Advanced Member Group: Members Posts: 3,007 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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QUOTE(TX914 @ Sep 2 2022, 05:24 AM)  I think the torsion bars can lose their strength over time. If the hinge brackets are okay, try swapping the torsion bars so that they bend in the opposite direction. This worked for me. For extended periods I leave the engine lid open (covered in garage) so it's under less tension. I also leave the targa top latches undone (rears hooked) so the top seals are not compressed. thanks, the mounting brackets are in great condition and 90 degrees to the firewall with no visible cracks. I was hoping the torsion bars did not lose their ability to resist twisting, but apparently they do. I will switch them and hope it cures the sagging/drooping |
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| Mikey914 |
Sep 2 2022, 12:19 PM
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#7
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The rubber man Group: Members Posts: 12,649 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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If they are like the bales on the valve covers, you can put in a vice and try bending back some tension. You have nothing to loose.
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| 930cabman |
Sep 2 2022, 12:55 PM
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#8
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Advanced Member Group: Members Posts: 3,007 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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QUOTE(Mikey914 @ Sep 2 2022, 12:19 PM) If they are like the bales on the valve covers, you can put in a vice and try bending back some tension. You have nothing to loose. thanks for the tip, I am often a CSOP |
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| Mikey914 |
Sep 2 2022, 11:43 PM
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#9
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The rubber man Group: Members Posts: 12,649 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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Hey why spend it if you don't have to. You know I'll be making more parts you need soon (IMG:style_emoticons/default/biggrin.gif)
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| bdstone914 |
Sep 3 2022, 08:59 AM
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#10
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bdstone914 Group: Members Posts: 4,515 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
If the tortion bars are sagging yourcould increasethe tension by putting a rubber block under the end ofteach bar.
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