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Cracked Evaporator Blower box

dgmelp on Sun March 13, 2011 2:10 PM User is offline

Year: 1990
Make: Holiday Rambler Class A

We have a 20 year old class A motorhome in relatively good shape except for the evaporator box inside the dash on the passenger side. Its cracked in one place and where the actual motor mounts, its broken. We're looking for all solutions - can a body shop fix this with a fiberglass repair and would that withstand the vibration inherent in the operation of the electric blower?

We would buy a new one, but the only two links I've found that looked promising are all out of business! Does anyone here have an idea, or a link to someone thats selling these?

I've attached a couple of pics of the piece I'm looking for - it has four outlets on one side and three on the other....with the motor attached to one end. Its about 30inches long (it is probably longer than the same piece would be in a car as a Class A motorhome has a wider cab).

Any help would be appreciated!

NickD on Mon March 14, 2011 6:22 AM User is offline

Most of this stuff is made from vacuum molded plastic that is inherently lubricated and difficult to find any thing to stick to it. Found for cracks, roughing up the surface with 60 grit sandpaper and using a high temperature hot glue works. For those tabs, weld them back with a hot soldering iron and back them up with a piece of sheet metal using small machine screws to a solid surface then coating with hot glue.

On mine where using sub tiny plastic tabs on the sides of the vent doors, what were they thinking? That broke off, replaced those witha 3/16" steel rod and checked for free movement. Can't see the detail on this photo, but it was a chore to remove this thing and wanted to make darn sure it would last. They relied on that weak adhesive to hold on that weather strip that was rotten. Wasn't too bad for that clamped seal, but felt off the doors and was just laying there. Used hot glue to hold that on secure.

Really never know what I am going to do until I start doing it, sometimes drill small holes and press in hot nails for reenforcement, screws with washers and nuts, and always hot glue. This is out of a class A. First thing to do is to find all the pieces.

GM Tech on Mon March 14, 2011 4:49 PM User is offline

Must be nice to work off the kitchen counter- my wife would SH..T. She has a keen sense of smell, and knows everytime I have been into gas, glue, wd-40, any oils, even solder smoke...I can't come in the house at 10pm if I had gas on my hands at 5pm! She instantly knows it..

The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

NickD on Tue March 15, 2011 5:52 AM User is offline

Ha, just set it there to take its picture after it was all cleaned and repaired. Besides, she was at work at the time.

With our smoking AT, even after I pressure washed it, wouldn't even let me bring that thing in the garage. Swear she has a more sensitive smeller than our German Shepherd dog.

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