Results 1 to 13 of 13

Thread: Leaking showing up at firewall

  1. #1
    VCVC Member ShawnM's Avatar
    Join Date
    Apr 2018
    Location
    Brookline, NH
    Posts
    135
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Leaking showing up at firewall

    I have a 66 G10. I am getting leaking coming down from behind the firewall covering material onto the floor. Seems rain water is getting into the plenum somehow. Anyone run into this and have suggestions? Also, anyone got pictures or drawings that show how the nose is assembled so maybe I can see how it works and or how it is supposed to drain out on ots own? i'm thinking maybe the seal between the plenum and the interior wall is bad?

  2. #2
    VCVC Member kookykrispy's Avatar
    Join Date
    Oct 2002
    Location
    Apple Valley, CA
    Posts
    8,529
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)

    welcome to VCVC

    Welcome!! And congrats on your first post. Usually water leaking in the dash area or below is indicative of a leaking windshield gasket. This is very common for these old vans. You also may have hidden rust in the windshield channel, which should be repaired when the windshield is out.
    Last edited by kookykrispy; 05-16-2019 at 06:17 PM.



    64' wikivan 230/4 onda tree/2.56 posi
    '64 Red Baron no engine/trans
    '66 "Lucky" 230/3 onda tree/project

    Quote Originally Posted by Vanner68 View Post
    Remember, they're still printing money, but they aren't making any more earlies!

  3. #3
    VCVC Member ShawnM's Avatar
    Join Date
    Apr 2018
    Location
    Brookline, NH
    Posts
    135
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Thanks for the quick reply

    Really appreciate the welcome and quick reply KookyKrispy! I don't think its the windshield leaking however. I get the leaking, lots, when water runs off the windshield and down the nose, getting behind the nose via the grill/vent just below the windshield. Just got an endoscope inspection camera to see if I can uncover the source.

    As a side note I was inspired by the color scheme of your van and had my van painted in a similar color with the white grill and eye lids around the headlights. Thanks for the inspiration. I can't figure out how to post a picture of it with my profile though, so posting one hereClick image for larger version. 

Name:	1966 G10 Van.jpg 
Views:	99 
Size:	112.1 KB 
ID:	39422

  4. #4
    VCVC Member
    Join Date
    Jul 2004
    Location
    Sacramento, Ca, USA
    Posts
    2,821
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)

    Welcome

    Welcome aboard. Nice looking van DudeVan!
    108VanGuy...
    1969 Chevy Panel, 250 CID, 3 Spd.with OD, 3.36 "WedgieVan" Daily Driver
    1967 Chevy Panel, 230 CID, 3 Spd. 3.36 "UtiliVan" 292 TFI coming. Owned since 76
    1964 GMC Panel, 194 CID, 3 Spd. "CrunchoVan"
    1965 GMC HandiBus Custom, 194 CID, 3 Spd. "MilkVan" Seized Engine
    1965 Chevy Panel 350 CID, 3 Spd. "RustoRoof" Runs but wiring bad
    1969 Chevy 108 Display 307 CID THM 350 Power Brakes 3.73 Posi
    1965 Chevy Panel, V8, 3 Spd. "Gold Hills Van" Best body of my 65s
    1965 CamperVan, V8, 3 Spd.

  5. #5
    VCVC Charter Member Vanner68's Avatar
    Join Date
    May 2000
    Location
    Kimball MI USA
    Posts
    13,439
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Those vents are not going to leak water to the inside unless there is serious cancer/damage behind the nose. Water runs in there driving in the rain, and should be directed to the ground. If leaves clogged those drains, then the rust monster appears. But, as KK said, the far more common cause is the windshield frame or even the drip rails.
    Gregg Groff


    There's no place like 127.0.0.1

    1968 Chevy G20 108 panel Now with 454 power!

    1965 Chevy G10 panel- OHC Pontiac inline 6

  6. #6
    VCVC Member ShawnM's Avatar
    Join Date
    Apr 2018
    Location
    Brookline, NH
    Posts
    135
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Thumbs up Found the problem

    Thanks for the helpful posts. I pulled off the plenum insulation on the interior and found there were several holes that had been drilled along the bottom of the drainage channel. Also was able to vac out a fair amount of organic debris in the channel via the air vent hole below the steering wheel. Sealed them last night so plan to test today. If no leaks I'm also thinking of flushing/washing out the channel with a hose to clean it out better.

  7. #7
    VCVC Member ShawnM's Avatar
    Join Date
    Apr 2018
    Location
    Brookline, NH
    Posts
    135
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    That did it

    1. Sealed the holes with narrow seam sealant (used for alum gutters) and let dry overnight. No more leaks. Also used the hose to wash out the drainage channel and lots more debris came out. Used Rustoleum truck bed liner to finish the firewall and down onto the floor up to the dog house. Also did the steps at the entry doors. 3 coats did it and it loots nice, clean and even texture. If you use that stuff keep mixing the texture up to keep it suspended in the paint as you apply.Click image for larger version. 

Name:	IMG_1600.jpg 
Views:	74 
Size:	44.4 KB 
ID:	39428 In good shape now. Thanks for the help.

  8. #8
    VCVC Charter Member Vanner68's Avatar
    Join Date
    May 2000
    Location
    Kimball MI USA
    Posts
    13,439
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Thanks for the update! You have contributed well to the VCVC knowledge base!
    Gregg Groff


    There's no place like 127.0.0.1

    1968 Chevy G20 108 panel Now with 454 power!

    1965 Chevy G10 panel- OHC Pontiac inline 6

  9. #9
    VCVC Member Wookee's Avatar
    Join Date
    Oct 2002
    Location
    Joppa Maryland U.S.A.
    Posts
    15,769
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)

    Cool

    From your picture with the top of the dash painted the same as the van it looks like somebody at one time had the windshield out.
    On the front clips there is a piece of sheet metal fitted to divide the grill area the the space above it.
    This upper area is used for the heating system in these Vans.
    The system takes in air through the vents holes in the front clip below the windshield.
    This is a picture of my 2nd gen with the front sheet metal removed.
    1st gens are set up the same way..

    Welcome to our club....

    The dual spot lights on your 1st Gen are kinda neat...
    The factory orange on these vans was called Omaha Orange

    Click image for larger version. 

Name:	IMG_6514.jpg 
Views:	51 
Size:	76.0 KB 
ID:	39440
    Its a "van thing". A life style you have to live to understand!!!!

  10. #10
    VCVC Member ShawnM's Avatar
    Join Date
    Apr 2018
    Location
    Brookline, NH
    Posts
    135
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks Wookee. That is a great picture, wish I had it or could have found it when I was tying to figure things out. I had a 68 GMC Handivan back in the late 70's and early 80. Replaced the nose on that baby twice! My current van is Sunrise Orange, a Subaru color. It was originally a fire truck, hence the lights on the roof. I still have the siren in it! Here's a pic of my van from the 70's:Click image for larger version. 

Name:	Dude Van with Joe Walsh autograph 2.jpg 
Views:	53 
Size:	85.4 KB 
ID:	39442

  11. #11
    VCVC Charter Member Vanner68's Avatar
    Join Date
    May 2000
    Location
    Kimball MI USA
    Posts
    13,439
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by ShawnM View Post
    Thanks Wookee. That is a great picture, wish I had it or could have found it when I was tying to figure things out. I had a 68 GMC Handivan back in the late 70's and early 80. Replaced the nose on that baby twice! My current van is Sunrise Orange, a Subaru color. It was originally a fire truck, hence the lights on the roof. I still have the siren in it! Here's a pic of my van from the 70's:Click image for larger version. 

Name:	Dude Van with Joe Walsh autograph 2.jpg 
Views:	53 
Size:	85.4 KB 
ID:	39442
    Oh, yeah! I would love to hear the story of how you got Joe Walsh to autograph a pic of your van!
    Gregg Groff


    There's no place like 127.0.0.1

    1968 Chevy G20 108 panel Now with 454 power!

    1965 Chevy G10 panel- OHC Pontiac inline 6

  12. #12
    VCVC Member Wookee's Avatar
    Join Date
    Oct 2002
    Location
    Joppa Maryland U.S.A.
    Posts
    15,769
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)

    Cool

    That story could be it very own thread......
    Its a "van thing". A life style you have to live to understand!!!!

  13. #13
    VCVC Member ShawnM's Avatar
    Join Date
    Apr 2018
    Location
    Brookline, NH
    Posts
    135
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    So the bumper is the title of Joe Walsh's live album from the 70's. I wore out a few albums listening to it. In the early 2000's sometime I went to the James Gang Rides Again tour and got special passes to me Joe and the band at the sound check before the show. I gave him two copies of the picture when i met him and told him I took the van cross country in 81. I told Joe it would be cool if I got one back autographed. Later that night one of his staff brought me the picture signed. I was hoping it might make an album cover but no luck, yet!

User Tag List

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •