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Old 03-16-2019, 08:46 PM   #1
bhemingson
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Cowl panel removal help

I took off the wipers, the 4 bolts and the screws. Under the cowl to hood seal I found 6 evenly spaced nuts on bolts or studs. Off course they are rusted solid and just spin. Any idea how to access the heads? Are they even stock?
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Old 03-16-2019, 08:55 PM   #2
Stocker
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Re: Cowl panel removal help

Mine's in the shop so I can't look at it...... I seem to recall stainless steel screws in those locations. Definitely not what your pic shows. I wonder if a PO replaced the screws with what you have now, possibly due to the screws not holding anymore because of rust? Maybe try grabbing what you can with visegrips, then twist & pull up at the same time.
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Old 03-17-2019, 12:51 AM   #3
Astro-Balls
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Re: Cowl panel removal help

Try putting a putty knife under the cowling to lift it up as you turn the heads of the bolts, hopefully they will come out, otherwise you will need to drill them out.
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Old 03-17-2019, 12:55 AM   #4
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Re: Cowl panel removal help

Grinder or cutoff wheel?
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Old 03-17-2019, 10:13 AM   #5
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Re: Cowl panel removal help

Putty knife or screwdriver under edge of cowl applying upward pressing while removing should do the trick otherwise the grinder cut-off wheel definely will just be careful if you take that route it doesn't grab and gouge into the cowl accidently.
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Old 03-17-2019, 12:34 PM   #6
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Re: Cowl panel removal help

If you cannot get to the nuts, how does reassembling go?
Several things I haven't attempted yet cause I just dont know.
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Old 03-17-2019, 12:36 PM   #7
GMCPaul
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Re: Cowl panel removal help

Most likely a machine screw with hex head rather than a bolt and nut.
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Old 03-17-2019, 01:10 PM   #8
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Re: Cowl panel removal help

You may be able to use something like a j clip fastener or clip nut.
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Old 03-17-2019, 08:22 PM   #9
bhemingson
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Re: Cowl panel removal help

Quote:
Originally Posted by GMCPaul View Post
Most likely a machine screw with hex head rather than a bolt and nut.
Best guess. They were pan head machine screws held in place with electricians tape. A drill and my new Milwaukee cut off tool made short work. Obviously they not stock once out so I could look at them. What did GM use originally? Stainless screws would seem the best.
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Old 03-17-2019, 09:26 PM   #10
67swb72klb
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Re: Cowl panel removal help

The only stainless screws were the ones exposed on the grille part of the cowl. But could be used in that area also.
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Old 03-18-2019, 05:21 AM   #11
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Re: Cowl panel removal help

Quote:
Originally Posted by bhemingson View Post
What did GM use originally?
Phillips pan-head sheet metal screw's with captured washer and black oxide finish.
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