A/C gasket should be how tight

$47 you got to be kidding, we sold them for $8 each. But they are right , it is a trial and error type fitting. I know one customer we had, bought three before he got it right.

Yep, just checked price of what I need ppl motorhomes has them for $35

AIR CONDITIONER GASKET - 14 X 16 - FOR SOME COLEMAN...Regularly $56.95 On Sale for Only $35.01
Manufacturer #: 67923301 $35.01

That is my life story. Paying to much!

did a search on google and the price was around $19 each

14X14 A/C GASKET for RV

I ordered one from DYERS about two years ago for about that same price as I recall.

My new gasket was compressed about 1/4-inch all the way around by adjusting the four long screws. I replaced mine because it was only about 1/2-inch thick. The new one was over one inch thick. I guess they lose their thickness over time...

Locktite will not help
the bolts get loose because the gasket compreses.
Make a habit of checking them at the begining of the season and when you winterize.
I think my manual says to replace every 3 to 4 years.
It seems like in these days of space travel they could find a better material to make a gasket from.

1" roof A/C gasket should be tightened to 1/2".....tighten the 4 hold down bolts in an 'X' pattern evenly

14 inch pounds is what is in the Dometic installation manual.

eHoefler wrote:
14 inch pounds is what is in the Dometic installation manual.

BE CAREFUL I don't think that number is correct. On page 15 on the installations manual for the Dometic
520 Series DUO-THERM HP
530 Series DUO-THERM HP heat pump
579 Series Brisk Air
590 Series Brisk Air
591 Series Heat Pump
595 Series Quick Cool
600 Series Penguin
630 Series Penguin

A/Cs and heat pumps

Evenly tighten mounting bolts to compress gasket
to 1/2" this will be a torque of 40 - 50 inch pounds.

Therefore I would use the 1/2" for a new gasket and the 40-50 inch pounds for one that is loose or is leaking. IMPORTANT - you will need a special torque wrench since that 40-50 inch pounds is a very low torque that most wrenches except for those for tranny pans aren't accurate at those torques.

Larry

rugerguy wrote:
Locktite will not help
the bolts get loose because the gasket compreses.
Make a habit of checking them at the begining of the season and when you winterize.
I think my manual says to replace every 3 to 4 years.
It seems like in these days of space travel they could find a better material to make a gasket from.

On inspection of mine, I found all the bolts were loose and it appeared as though the gasket had never been compressed at all. I applied a thread locker and tightened the hardware in an x pattern until I saw slight compression of the gasket all the way around. I did not even have a leak when I found this, I was sealing up the ductwork.

My rule of thumb is to use a 1/4" drive socket set and snug them up. The 1/4" set doesn't let you man handle the nuts too much. I tighten mine once a year. -Remember, 2-3 complete turns on a nut only moves the nut about 1/8" to 1/4". You should be able to snug them up with a couple of turns unless its been years since they've been tightened.

Don't know how tight, but I had two installed this afternoon. Paid a mobile tech $32each pluss labor