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Topic: hood allignment

in Forum: C3 Body


hood allignment

Posted: 9/11/06 10:00am Message 1 of 20
Former Member
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Joined: 8/16/2005
Posts: 242
this problem driving me nuts.. allignment of the hood .. can't get it fit properly.:








can someone advice me on the right tricks to get the hood correctly:

at point A  the hood sits lower than the fender
at point B  the corner of the hood is higher than the fender
at point C hood and body are in line
at point D  the corner is more or less in line with fender
at point E  the hood sit lower than fender

at point B there are NO shims used to attach the hood to body so no space to play with that to lower hood.

was wondering if the only trick is to adjust the hight of the vacuumtube(1978vette)/bumper that is attached to the frame to move up and down the nose ??

thank you
art-corvette


art-corvette38971.426724537


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hood allignment

Posted: 9/11/06 3:39pm Message 2 of 20
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Edgewood, KY - USA
Joined: 10/26/2003
Posts: 339
Vette(s): 1981, Black/Black, Engine bumped to about 400HP.Ext/int mostly stock.
I suspect you'll find that this is pretty normal.  My 81's hood alignment is amazingly similar and I've read many times that poor body panel alignment is notorious in Vettes, particularly up through '82.  Chevy just didn't have tight tolerance specs for the Vette body assembly.  In fact, the NCRS guys will tell you that if you have all the panels perfectly aligned on these older vettes, you have restored it eyond factory specs and it should thus be given a deduction during judging.  I was shocked to discover that Chevy did not look out for the quality image of their flagship car any better than that, but I guess nothing the "Big 3" manufacturers do should surprise me.  In my case, I just adjusted the hinges and latches to "average out" the imperfections as best as I could.


hood allignment

Posted: 9/11/06 3:45pm Message 3 of 20
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Ronda, NC - USA
Joined: 6/7/2006
Posts: 1057
Vette(s): 77 & 71 & 85
I have spent hours upon hours doing the same thing you are doing and all I can say is close works on a Vette.




hood allignment

Posted: 9/11/06 4:52pm Message 4 of 20
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Roseland, NJ - USA
Joined: 12/4/2003
Posts: 966
Vette(s): 1974, 454 with 4 on the floor, matching numbers.
I recently found the same problem developing on my 74, but I found that on point "C" to "B" on my car (your picture) in the front of the nose became loose (unglued) when I push down on it, everything lines up perfect. I just ordered some epoxy to fix the problem.


hood allignment

Posted: 9/11/06 7:10pm Message 5 of 20
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Factory tolerances are flush to +/- .06 around the hood. Good luck ever finding one that close.
On your points "A" and "E"...that is "normal" for dang near every Shark I've ever seen.
There were some rubber "blocks" that the factory would install in the recessed edge of the body, around the hood opening, to try to keep the center area from dropping down like yours(and most everyone elses!). They are still available aftermarket.(Bairs ) They don't really work that well, as you have to cut them to fit, and they just stick on w/2 sided tape. This also makes it harder to get the dang hood to shut properly!

Your point "B"...are there any shims under the hinge, between the hinge and the body? That's where the shims are supposed to go, anyway. If not, then I would think that the body shop that did your paint work should've taken care of this before it was painted.

Poor body fit? On a 'Vette! Puh-leeeeze! Ya ever look at a 53? You'd think the dang doors were open driving down the road, they stuck out so far at the bottom!


Joel Adams
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hood allignment

Posted: 9/13/06 10:13am Message 6 of 20
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Joined: 8/16/2005
Posts: 242
thanks for the advice , i know now that is no "normal" way to get allignment perfect and that i haven't been doing anything wrong
i have been "manipulating" everything a bit by changing height of  vacuum tube...also with adding a rubber "block"   and it already gets much better

art-corvette







hood allignment

Posted: 9/14/06 2:17pm Message 7 of 20
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northern, IL - USA
Joined: 9/9/2005
Posts: 135
Vette(s): 1973 t top, 454, manual trans.

 I would guess those rubber hood blocks might help. maybe your originals are worn.

 Putting one at points A & E.

Point A , leave rubber full size, (Dont adhere it till done with fitment, Tape it in place). It should lift at wheel well, then might have a pivot action after hinge forcing point B down.

Point E , might need to shave it alittle so "D" isn't moved to much.

 Hopefully Point C doesn't move to much after the mod

huk_finn38974.5969791667


hood allignment

Posted: 9/14/06 2:21pm Message 8 of 20
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northern, IL - USA
Joined: 9/9/2005
Posts: 135
Vette(s): 1973 t top, 454, manual trans.
maybe the factory rubber blocks were removed during a paint job????


hood allignment

Posted: 9/14/06 2:50pm Message 9 of 20
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Joined: 10/21/2003
Posts: 1220
Your points A and E are too for forward for the blocks to work.....at least thats what I would have though before I bought my white 79. In that area the blocks can be put on end. Never saw them that way until the "new" Vette came along. Mounted there from factory.  I've had some come off in the past but I reglue them with black silicone.  There's also a support strut that goes to the lower edge of the radiator support to the center of the hood surround near the headlight vacuum relays. Maybe you can get some adjustment out of that for "C".  Mike 


hood allignment

Posted: 9/14/06 3:38pm Message 10 of 20
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ANCHORAGE, AK - USA
Joined: 10/12/2004
Posts: 2193
Vette(s): 1965-327 coupe, 1968-small block coupe, 1969-427, 1971-454 coupe and currently a 1976-ZZ4 coupe reborn again,and hotter than ever.. Add a 1996 CE LT-4 for backup

Arthur,  When I put a replacement hood on my 76 we had to adjust the upper surrouind panel to match the hood, not all molds will fit correctly..http://www.C3VR.com/member_pages/6601_6700/6665/DSCF0179.JPG

it's not easy and takes time..I fitted mine before the paint?? 






   "I Love all Corvettes! LifeTime Member #60..Terry"

in Forum: C3 Body


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