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charleslabri
Samba Member
Joined: December 08, 2019
Posts: 615
Location: Nashville/Yosemite
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 Posted: Sat Jul 25, 2020 7:26 am Post subject: aircooled body air intake rust |
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the stock method for dealing with rust below the air intake vents seems flawed: hope it doesnt rust down there, factory put a small bleeder hole.
anyone done anything back here to help with rust prevention? a shelf of some sort to divert water or something? |
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charleslabri
Samba Member
Joined: December 08, 2019
Posts: 615
Location: Nashville/Yosemite
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| Posted: Sun Jul 26, 2020 7:41 am Post subject: Re: aircooled body air intake rust |
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| Bump.. am I blazing ground here? |
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jlrftype7
Samba Member
Joined: July 24, 2018
Posts: 3582
Location: Chicago
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| Posted: Sun Jul 26, 2020 8:24 am Post subject: Re: aircooled body air intake rust |
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Well, I don’t have any rust issues in that area , yet, on my ‘84.
I think the drainage plus air flow constantly drying, both intake in , and hot air rising after shut off of the engine keep it drier than one would think.
Strong paint layer, with a spray coating of body cavity wax on top of that once you’ve sanded the rust spots you currently have. Treat the spots with converter before priming and painting?
_________________
'68 Westy- my first VW and vehicle/Bus- long gone.- sold it to a traveling Swiss couple....
'67 Type 3 Fastback, my 2nd car- gone
'69 Semi-Auto Stick Shift Beetle-gone
2017 MINI Coopers, our current DDs
‘84 Tin Top - Hilga....Auto |
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MarkWard
Samba Member
Joined: February 09, 2005
Posts: 17155
Location: Retired South Florida
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| Posted: Sun Jul 26, 2020 8:38 am Post subject: Re: aircooled body air intake rust |
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Buses had the same design. Luckily the battery got moved out of that spot with the vanagon. It used to really rust in the r/r corner.
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danfromsyr
Samba Member
Joined: March 01, 2004
Posts: 15144
Location: Syracuse, NY
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| Posted: Sun Jul 26, 2020 11:28 am Post subject: Re: aircooled body air intake rust |
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there is NOT ANY RUST in there in that picture... at least from my north eastern eyes that's near brand new in there... find something else to worry about it'll (possibly) outlive you.
| charleslabri wrote: |
the stock method for dealing with rust below the air intake vents seems flawed: hope it doesnt rust down there, factory put a small bleeder hole.
anyone done anything back here to help with rust prevention? a shelf of some sort to divert water or something? |
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charleslabri
Samba Member
Joined: December 08, 2019
Posts: 615
Location: Nashville/Yosemite
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| Posted: Mon Jul 27, 2020 6:35 am Post subject: Re: aircooled body air intake rust |
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all the rust is right at the drop point.. the vw engineers made the X pattern there where the pic is for water drainage.
rust is between the seam on the panel in the back of the channel
| danfromsyr wrote: |
there is NOT ANY RUST in there in that picture... at least from my north eastern eyes that's near brand new in there... find something else to worry about it'll (possibly) outlive you.
| charleslabri wrote: |
the stock method for dealing with rust below the air intake vents seems flawed: hope it doesnt rust down there, factory put a small bleeder hole.
anyone done anything back here to help with rust prevention? a shelf of some sort to divert water or something? |
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charleslabri
Samba Member
Joined: December 08, 2019
Posts: 615
Location: Nashville/Yosemite
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| Posted: Mon Jul 27, 2020 6:35 am Post subject: Re: aircooled body air intake rust |
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k- makes sense. Will do
| jlrftype7 wrote: |
Well, I don’t have any rust issues in that area , yet, on my ‘84.
I think the drainage plus air flow constantly drying, both intake in , and hot air rising after shut off of the engine keep it drier than one would think.
Strong paint layer, with a spray coating of body cavity wax on top of that once you’ve sanded the rust spots you currently have. Treat the spots with converter before priming and painting? |
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T3 Pilot
Samba Member
Joined: January 10, 2011
Posts: 1507
Location: Deep South of the Great White North
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| Posted: Mon Jul 27, 2020 6:51 am Post subject: Re: aircooled body air intake rust |
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It is interesting to see that drain hole in the X. The later vans do not have a hole there from factory. On My Van with AC I did put a hole there to drain condensate.
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1988 Vanagon
The most important part in every vehicle is the nut behind the wheel...... |
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tencentlife
Samba Member
Joined: May 02, 2006
Posts: 10078
Location: Abiquiu, NM, USA
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| Posted: Mon Jul 27, 2020 7:38 am Post subject: Re: aircooled body air intake rust |
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| jlrftype7 wrote: |
Well, I don’t have any rust issues in that area , yet, on my ‘84.
I think the drainage plus air flow constantly drying, both intake in , and hot air rising after shut off of the engine keep it drier than one would think.
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You're probably right on the aircooleds, and for the left side on watercooleds, but the wbx's had a blocking panel on the right side that mostly closed it off. On those its common to see lots of debris and moisture accumulate there, especially the 2.1's which ducted engine air all the way thru. The 1.9's had an intake air horn that pulled from behind the blocking panel so at least the engine air flowed thru to help dry that area, but it became a mostly stagnant dead-end with the 2.1 wbx's.
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jlrftype7
Samba Member
Joined: July 24, 2018
Posts: 3582
Location: Chicago
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| Posted: Mon Jul 27, 2020 10:12 am Post subject: Re: aircooled body air intake rust |
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| tencentlife wrote: |
| jlrftype7 wrote: |
Well, I don’t have any rust issues in that area , yet, on my ‘84.
I think the drainage plus air flow constantly drying, both intake in , and hot air rising after shut off of the engine keep it drier than one would think.
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You're probably right on the aircooleds, and for the left side on watercooleds, but the wbx's had a blocking panel on the right side that mostly closed it off. On those its common to see lots of debris and moisture accumulate there, especially the 2.1's which ducted engine air all the way thru. The 1.9's had an intake air horn that pulled from behind the blocking panel so at least the engine air flowed thru to help dry that area, but it became a mostly stagnant dead-end with the 2.1 wbx's. |
My blocking panel had rotted away by the time I got this Vanagon. But, the sheet metal was still pretty pristine, all things considered.
I didn't know VW deleted the drain hole, not sure if I have one[ I don't think I do], in that X stamping section. Maybe they were worried about paint not holding well to the sharp edges of the hole versus no hole at all, with water draining through all the time...... 
_________________
'68 Westy- my first VW and vehicle/Bus- long gone.- sold it to a traveling Swiss couple....
'67 Type 3 Fastback, my 2nd car- gone
'69 Semi-Auto Stick Shift Beetle-gone
2017 MINI Coopers, our current DDs
‘84 Tin Top - Hilga....Auto |
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