Couple of AD questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**8man** · 09-16-2018, 02:15 PM

Ok, I bought both the 48 and the 54 in pieces, so I need some help.

On the underneath side of the dash for the 54, this bracket hangs down.

IMG_2058 by Robert Moorman, on Flickr

I have no idea what "hangs" there under the dash. It has nothing to do with the cowl vent, I know that.

Then regarding the cowl vent, I had some bad news today. I was dissembling it as I'm starting on the 54 and found the ear that is riveted on the dash piece had come off. Actually, the rivet (I think) had rusted in to.

IMG_2057 by Robert Moorman, on Flickr

Is this a rivet? Would a bolt work, since it would be a PITA to try and buck and hammer a rivet in there. What have others done?

Thanks

**joedoh** · 09-16-2018, 02:42 PM

the bracket is for a wiper motor.

the rivet lets the bracket pivot, so whatever you put in there will need sleeved so you can get it tight but still let it pivot.

MARTINSR · 09-16-2018, 03:29 PM

Sleeving it as Joe said would be the right way, but the "bestest" way would be using a bolt that is the same size and then use a jam nut or a lock nut.

One style "lock nut" which is what I would use there.

Or

Or of course.

Or the "jam nut" Which this photo I found is interesting being apparently I have been doing it wrong all these years!

But using a jam or lock nut you can tighten up the bolt but still leave it loose enough for the hinge to work without the nut falling off one day.

Brian

**8man** · 09-16-2018, 04:53 PM

Thanks guys.

The vent cowl swivel arm is interesting. I'll look for a really small bolt that I can lock washer.

The wiper motor bracket, that makes sense.

MARTINSR · 09-16-2018, 05:33 PM

Quote:

Originally Posted by 8man

Thanks guys.

The vent cowl swivel arm is interesting. I'll look for a really small bolt that I can lock washer.

The wiper motor bracket, that makes sense.

You can't use a lock washer, that's what Joe and I were talking about, that thing has to swing back and forth, it's the hinge for the cowl vent. So you have to used a shouldered bolt as Joe said or the exact size bolt and a locking nut like I mentioned.

Brian

**8man** · 09-16-2018, 05:40 PM

Sorry Brian, I did read your post and just misspoke. I'll look for a bolt that I can put 2 nuts on to lock it so it doesn't move.

Thanks.

MARTINSR · 09-16-2018, 05:49 PM

Quote:

Originally Posted by 8man

Sorry Brian, I did read your post and just misspoke. I'll look for a bolt that I can put 2 nuts on to lock it so it doesn't move.

Thanks.

Brian

09-16-2018, 02:15 PM	#1
8man Senior Member Join Date: Sep 2017 Location: Bryan, Texas Posts: 2,271	Couple of AD questions Ok, I bought both the 48 and the 54 in pieces, so I need some help. On the underneath side of the dash for the 54, this bracket hangs down. IMG_2058 by Robert Moorman, on Flickr I have no idea what "hangs" there under the dash. It has nothing to do with the cowl vent, I know that. Then regarding the cowl vent, I had some bad news today. I was dissembling it as I'm starting on the 54 and found the ear that is riveted on the dash piece had come off. Actually, the rivet (I think) had rusted in to. IMG_2057 by Robert Moorman, on Flickr Is this a rivet? Would a bolt work, since it would be a PITA to try and buck and hammer a rivet in there. What have others done? Thanks

09-16-2018, 02:42 PM	#2
joedoh Senior Member Join Date: May 2007 Location: Doodah Kansas Posts: 7,747	Re: Couple of AD questions the bracket is for a wiper motor. the rivet lets the bracket pivot, so whatever you put in there will need sleeved so you can get it tight but still let it pivot. __________________ the mass of men live lives of quiet desperation if there is a problem, I can have it. new project WAYNE http://67-72chevytrucks.com/vboard/s...d.php?t=844393

09-16-2018, 03:29 PM	#3
MARTINSR Registered User Join Date: Dec 2000 Location: Boise, Idaho Posts: 6,001	Re: Couple of AD questions Sleeving it as Joe said would be the right way, but the "bestest" way would be using a bolt that is the same size and then use a jam nut or a lock nut. One style "lock nut" which is what I would use there. Or Or of course. Or the "jam nut" Which this photo I found is interesting being apparently I have been doing it wrong all these years! But using a jam or lock nut you can tighten up the bolt but still leave it loose enough for the hinge to work without the nut falling off one day. Brian __________________ 1948 Chevy pickup Chopped, Sectioned, 1953 Corvette 235 powered. Once was even 401 Buick mid engined with the carburetor right between the seats! Bought with paper route money in 1973 when I was 15. "Fan of most anything that moves human beings"

09-16-2018, 04:53 PM	#4
8man Senior Member Join Date: Sep 2017 Location: Bryan, Texas Posts: 2,271	Re: Couple of AD questions Thanks guys. The vent cowl swivel arm is interesting. I'll look for a really small bolt that I can lock washer. The wiper motor bracket, that makes sense.

09-16-2018, 05:40 PM	#6
8man Senior Member Join Date: Sep 2017 Location: Bryan, Texas Posts: 2,271	Re: Couple of AD questions Sorry Brian, I did read your post and just misspoke. I'll look for a bolt that I can put 2 nuts on to lock it so it doesn't move. Thanks.



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