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Ossipon
Samba Member
Joined: May 12, 2021
Posts: 619
Location: KS
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 Posted: Mon Aug 22, 2022 5:31 am Post subject: Grommets- replacement and substitution question |
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As I am trying to restore Gretchen, I am of course replacing wiring grommets. I have two questions.
1. I am using the same grommet size for most of my larger replacements. Some of the original grommets have a larger aperture than the ones I am using. I have been of the mode of push the wiring through no matter the size. My attitude is the tighter the fit the better. Although some seem a bit loose, so have added a bit of sealant for those. Is that an issue I should be concerned and consider finding a better size.
2. Is there a better/best source? I have about used up the ones I originally purchased and need more. I should not be, but am amazed at how many I have used thus far.
Thanks in advance
_________________
Ossipon
--Two truths in life: Volkswagens Rust and everything will die at some point --
VWs in my life:
Air
Type 1 - 59, 62, 63, 71 Super 68 KGhia/ Type 2 - 59 Single Cab / Type 3 - 64 Notch
Water
GTI 83, Jetta 81, 85, 87, 91 TDI, 98 TDI, 09 / New Beetle 99 / SportWagen 05, 13 / Tiguan 18 / T3 92 /Taos 24... And don't about me and my experiences with my Dasher and Quantum |
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raygreenwood
Samba Member
Joined: November 24, 2008
Posts: 23175
Location: Oklahoma City
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| Posted: Mon Aug 22, 2022 6:43 am Post subject: Re: Grommets- replacement and substitution question |
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Wiring grommets have two "main" uses.
1. Weather sealing,/leak prevention
2. Wire or hose anti-chafe or anti-abrasion.
In many/most cases......it's both.
I would not use sealant. It kind of defeats the use of a grommet.
Grommets are reusable ....meaning that if I have to remove a hose or wire for maintenance....it slips right back in and the grommet still works without having to cut or grind or clean.
Otherwise if you now have to remove sealant.....you could have done without the grommet and just used RTV.
Try McMaster Carr. They have lots of grommets. Each part # has a cad drawing as well. Also try the electronics supply houses like digi-key. Ray |
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Ossipon
Samba Member
Joined: May 12, 2021
Posts: 619
Location: KS
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| Posted: Tue Aug 23, 2022 5:51 am Post subject: Re: Grommets- replacement and substitution question |
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| raygreenwood wrote: |
Wiring grommets have two "main" uses.
I. would not use sealant. It kind of defeats the use of a grommet.
....
. Ray |
Understood and agreed, I guess I did not make myself clear. I planned to use the sealant in addition to the grommet when the grommet opening was larger than the wiring. The sealant was to be space filler for the grommet void left by the wiring. It is something I started doing when I did my 71 Super Beetle and continued when working on my BMWs.
I like bullet/cone shaped grommets as they do a better job (and install easier) in my opinion than the donut style. I had forgotten about searching McMaster. I found the ones I needed there. Thank you
Steven
_________________
Ossipon
--Two truths in life: Volkswagens Rust and everything will die at some point --
VWs in my life:
Air
Type 1 - 59, 62, 63, 71 Super 68 KGhia/ Type 2 - 59 Single Cab / Type 3 - 64 Notch
Water
GTI 83, Jetta 81, 85, 87, 91 TDI, 98 TDI, 09 / New Beetle 99 / SportWagen 05, 13 / Tiguan 18 / T3 92 /Taos 24... And don't about me and my experiences with my Dasher and Quantum |
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ataraxia
Samba Member
Joined: March 19, 2010
Posts: 4507
Location: Illinois
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| Posted: Wed Aug 24, 2022 3:48 pm Post subject: Re: Grommets- replacement and substitution question |
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| The most common ones are available from Wolfsburg West - I found the rest of them at a local VW dealership because they superseded them with a slightly different design while retaining the original ID and OD of the grommet. |
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