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01-17-2021, 01:47 PM
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#1 |
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Registered User
Join Date: Jan 2019
Location: Newark, OH
Posts: 15
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Water leak
Hey guys, I have been battling a water leak under my dash on my 67 k10. Had the windshield out new gasket and glass , had it in the glass shop twice. I can't find where it is getting in. Just wondering if anyone has had the same problem and has any suggestions. Thanks!
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01-17-2021, 02:27 PM
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#2 |
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Senior Member
 
Join Date: Jun 2000
Location: Texan in Iowa
Posts: 2,517
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Re: Water leak
Check along the body seam inside the cowl, or it could even start in your drip rail above the windshield, then channel down the A-pillar.
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Ben '68 Chevy C10 Custom LWB 327/TH400 2nd owner '16 GMC Sierra 1500 SLE Dblcab 4wd 5.3 |
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01-17-2021, 02:31 PM
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#3 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: Water leak
Per the GM shop manual you should put sealer at each top corner and extend it out at least 6" so it gets that seem in the top. May not fix it but it's a start. The dash if you look has holes in the area around the bottom of the glass. Water comes in at the top and comes down the windshield sides then out at the curve at the bottom and drips through the holes in the dash.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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01-17-2021, 03:44 PM
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#4 |
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Registered User
Join Date: Sep 2016
Location: Ft Smith, AR
Posts: 542
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Re: Water leak
is it leaking only on one side?
Are you sure there is no anti freeze in it (heater core leak)? There is a seam under the cowl about 10" from the edge of the truck on both sides. They do rust there a lot esp if it was ever clogged up. |
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01-18-2021, 03:22 PM
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#5 |
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Senior Member
Join Date: Jan 2013
Location: North Charleston SC
Posts: 503
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Re: Water leak
Check the wiper motor seal. I chased a leak and found mine bad.
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01-18-2021, 06:49 PM
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#6 | |
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Post Whore
Join Date: Feb 2016
Location: Portland Oregon
Posts: 10,803
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Re: Water leak
Quote:
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.  RIP Bob Parks. 1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F2 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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01-18-2021, 09:40 PM
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#7 |
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Senior Member
Join Date: Dec 2013
Location: Gods country East,Tn
Posts: 8,545
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Re: Water leak
Use CRL 1716 flow grade sealant to cure water leaks from the gasket /windshield
https://www.crlaurence.com/crlapps/s...ModelID=19965# with the gun dispenser CRL 181AG https://www.crlaurence.com/crlapps/s...&ModelID=19352
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 1967 Factory short bed - Old school '71 - 350 / 4bolt / 487 heads / Edelbrock C3BX Muncie M-22 4 speed / Hurst Comp plus Factory 12 bolt posi 3.73 / 255-70-15 Smoothed firewall / Factory cowl induction Power disc brakes / power steering / 3.5-5" drop |
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