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croSSeduP Samba Member
Joined: June 13, 2004 Posts: 1106 Location: Western Washington State
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Posted: Sat Apr 10, 2021 2:18 pm Post subject: Breastplate Hole Plugs? |
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Any tips for plugging these big holes when heat isn't used? I have an OG late breastplate that has been powder coated to match the rest of my sheetmetal, but I'm not running heat, so those two big holes for heat need to be plugged somehow. I have an aftermarket breastplate w/o the holes, but it isn't powder coated, and it doesn't fit right, probably because it's for an earlier car. _________________ Please check my '67 sedan project progress!
http://www.thesamba.com/vw/forum/viewtopic.php?t=502253&highlight= |
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evanfrucht Samba Member
Joined: July 24, 2016 Posts: 2180 Location: Laurel Canyon, CA
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Posted: Sat Apr 10, 2021 2:26 pm Post subject: Re: Breastplate Hole Plugs? |
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Look up "flush mount auto body hole plug" on ebay. They come in many sizes _________________ 1967 Bug ( the daily rod )
1964 Fury Wagon ( the pavement shredder ) |
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croSSeduP Samba Member
Joined: June 13, 2004 Posts: 1106 Location: Western Washington State
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Posted: Sat Apr 10, 2021 2:49 pm Post subject: Re: Breastplate Hole Plugs? |
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evanfrucht wrote: |
Look up "flush mount auto body hole plug" on ebay. They come in many sizes |
I looked that up. Those are all either plastic or rubber. I'm afraid they would melt/burn being right above the exhaust... _________________ Please check my '67 sedan project progress!
http://www.thesamba.com/vw/forum/viewtopic.php?t=502253&highlight= |
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evanfrucht Samba Member
Joined: July 24, 2016 Posts: 2180 Location: Laurel Canyon, CA
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Posted: Sat Apr 10, 2021 3:05 pm Post subject: Re: Breastplate Hole Plugs? |
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They won't get hot enough to burn or melt. There are rubber grommets that go around the heater hose normally and those hold up fine. _________________ 1967 Bug ( the daily rod )
1964 Fury Wagon ( the pavement shredder ) |
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Cusser Samba Member
Joined: October 02, 2006 Posts: 31361 Location: Hot Arizona
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51125 Location: Surrey B.C. Canada, but thinking of Ukraine
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APPLEGREENVW Samba Member
Joined: November 30, 2003 Posts: 2387 Location: Seekonk,Massachusetts USA
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74 Thing Samba Member
Joined: September 02, 2004 Posts: 7390
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Posted: Sat Apr 10, 2021 3:48 pm Post subject: Re: Breastplate Hole Plugs? |
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Does your other tin without the holes not fit because the tin behind the pulley is different?
Knowing what you car looks like (nice) I think it would be better to get the correct pulley tin to fit your rear tin and get them both powder coated.
Most likely you need this shaped pulley tin to match up with your rear tin
https://www.cbperformance.com/product-p/1962.htm
The tin in your prev photos with heater hoses appears to be original tin that uses a different pulley tin. |
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AirHead1966 Samba Member
Joined: October 17, 2019 Posts: 568 Location: Triad Area NC
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Posted: Sat Apr 10, 2021 4:14 pm Post subject: Re: Breastplate Hole Plugs? |
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croSSeduP wrote: |
Any tips for plugging these big holes when heat isn't used? I have an OG late breastplate that has been powder coated to match the rest of my sheetmetal, but I'm not running heat, so those two big holes for heat need to be plugged somehow. I have an aftermarket breastplate w/o the holes, but it isn't powder coated, and it doesn't fit right, probably because it's for an earlier car. |
Let's say you have a 2 inch hole to plug the rear tin.
1. Buy some aluminum sheet from home depot https://www.homedepot.com/p/M-D-Building-Products-.../202091748
2. Get an M4 or close nut and bolt. About 3/4 inch long.
3. Cut two circular discs out of the aluminum about half inch larger than the hole. So, about 2 1/2 inch diameter for this example.
4. Drill a hole in center of both disks large enough to accommodate the M4 or similar bolt.
5. Sandwich the engine tin between the two discs. Put the bolt through the top so that it goes from the top disc and then through the bottom disc and put the nut under the bottom disc.
6. Tighten the nut and bolt. The pressure from the nut and bolt will keep the engine tin sandwiched between the the two discs.
You can even paint the discs to the color you want. |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76902 Location: Sneaking up behind you
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Posted: Sat Apr 10, 2021 5:44 pm Post subject: Re: Breastplate Hole Plugs? |
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I have a Brazilian breastplate. No fresh air or heat riser.
_________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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Rome Samba Member
Joined: June 02, 2004 Posts: 9640 Location: Pearl River, NY
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Posted: Sat Apr 10, 2021 6:02 pm Post subject: Re: Breastplate Hole Plugs? |
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I just measured the large holes in the rear breastplate that are used for the fresh air hoses. The holes are 60 mm dia. (2.34"). You could use an aluminum plug like this, painting it with satin, semi, or gloss black to match your powdercoated plate. Cut 3 sets of narrow tabs in the bottom "rim" so that you can bend them up against the underside of the breast plate to hold them in.
https://www.ventmyhouse.com/2-5-round-aluminum-plu...gIz2_D_BwE
AirHead's method could also work. You could substitute straight-slotted engine tin screws for the bolts he mentions, so that you have a reasonably unified look. Flat washer under the screw head, then a lockwasher and M6 x 1.0 mm nut from underneath to sandwich the discs together. And paint the discs as above, but keep the tin screws in their current finish so they look the same as the others. |
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74 Thing Samba Member
Joined: September 02, 2004 Posts: 7390
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Posted: Sun Apr 11, 2021 9:38 am Post subject: Re: Breastplate Hole Plugs? |
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There are these 2" plumbers test plugs too. Go to the plumbing section of any hardware store and you should be able to find them. When you crank down on the wing nut the rubber expands and will seal that hole. Just paint the top if you want.
https://www.amazon.com/154-008-Test-Plug/dp/B000BQ...mp;sr=8-12 |
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evanfrucht Samba Member
Joined: July 24, 2016 Posts: 2180 Location: Laurel Canyon, CA
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Posted: Sun Apr 11, 2021 4:57 pm Post subject: Re: Breastplate Hole Plugs? |
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A properly sized flush mount panel plug is what you want. Or perhaps something like this but slightly bigger https://www.mcmaster.com/9600K527
Or even this, not flush mount, but it would work well
https://www.ebay.com/itm/164195048133
Those are meant to plug holes in sheetmetal and thin panels, exactly like these engine tins.
I big thick rubber stopper and wing nut is completely unnecessary and improper for sealing a hole in thin sheetmetal. It will look terrible and wont even work as well as the proper type of plug _________________ 1967 Bug ( the daily rod )
1964 Fury Wagon ( the pavement shredder )
Last edited by evanfrucht on Sun Apr 11, 2021 5:03 pm; edited 2 times in total |
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bsairhead Samba Member
Joined: October 08, 2008 Posts: 3561 Location: viroqua wi.
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Posted: Sun Apr 11, 2021 5:01 pm Post subject: Re: Breastplate Hole Plugs? |
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Tuna can lids + RTV. |
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txoval Samba Member
Joined: January 23, 2004 Posts: 3552 Location: The Woodlands, TX
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Posted: Sun Apr 11, 2021 5:39 pm Post subject: Re: Breastplate Hole Plugs? |
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All of these suggestions would work, but would ruin the powdercoat effort appearance wise.
I’d just buy the right tin without holes and have it powdercoated. I just dropped my tins off to get coated...that piece was $25 |
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Howard 111 Samba Member
Joined: July 09, 2005 Posts: 1827 Location: Virginia
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APPLEGREENVW Samba Member
Joined: November 30, 2003 Posts: 2387 Location: Seekonk,Massachusetts USA
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croSSeduP Samba Member
Joined: June 13, 2004 Posts: 1106 Location: Western Washington State
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Posted: Wed Apr 14, 2021 12:10 pm Post subject: Re: Breastplate Hole Plugs? |
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APPLEGREENVW wrote: |
croSSeduP, How did you fix your issue? |
Still working on it. Here are some pics of the OG sheetmetal, and the aftermarket one I bought and had to modify to fit.
_________________ Please check my '67 sedan project progress!
http://www.thesamba.com/vw/forum/viewtopic.php?t=502253&highlight= |
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74 Thing Samba Member
Joined: September 02, 2004 Posts: 7390
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txoval Samba Member
Joined: January 23, 2004 Posts: 3552 Location: The Woodlands, TX
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Posted: Wed Apr 14, 2021 4:06 pm Post subject: Re: Breastplate Hole Plugs? |
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It also looks like the black one has been trimmed/pieces cut off |
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