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Topic: Defrost ducts  (Read 375 times) previous topic - next topic

Defrost ducts

On my 91 GY defrost ducts that come through the dash on the passanger side has come loose and cracked along the back edge. I used some silicone along the flange and reattached it up to the bottom of the dash. tomorrow I will try and get a couple of small screws in to secure it. I am thinking of using a mastic to seal along the cracked edges and to really seal it to the underside of the dash so it wont leak and come loose again. Do any of you have any other ideas that or what I should use?
91 GV U300 Unihome 40' Build 3811
6V92TA Detroit

Re: Defrost ducts

Reply #1 –
That oughtta do the job, seems to me!
Jay
1989 U280 SE, 36', 3208T Cat, build 3292

Re: Defrost ducts

Reply #2 –
no more than I use my defrost black duct tape works well.
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My advice and experiences are Free, you decide if they are worth anything .

John - driving Old Faithful
1994 U280 GV
C8.3, Banks, Pacbrake, 900 watts, Resonator, XLHD tow dolly
Retired Army Warrant Officer

Life is what you make of it - if it is lemons, make lemonade!
Former Coaches:
1988 GV 40' ORED 300HP CAT - 9 years
1990 Winnebago LeSharo - 3 years
2000 Newmar London Aire - 3 years (#18 of 23 produced)
 

Re: Defrost ducts

Reply #3 –
Mine actually popped loose from the underside of the dash. Air was blowing up as we went down the hiway.The one on the drivers side looks rough also so I'm going to seal them back on real good with some kind of sealer. I'm thinking that stuff you use on roof vent seams will work or maybe a rubberized roof sealer that i can brush on kind of thick.
91 GV U300 Unihome 40' Build 3811
6V92TA Detroit