Quote:
Originally Posted by mattc
Not knowing the specifics... ...just asking: Is it possible to drill (carefully!!!) a few strategic holes in the surrounding case, and "flood" the case with coil cleaner a few times - and maybe, do a 1/2 way decent job?
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No. Once you've actually cleaned one, you realize it cannot be done any other way.
Sure, you can spray stuff in. It just doesn't get the coils clean. The crevices are way too tight, and the angles of attack are lousy.
Quote:
Originally Posted by mattc
...The job appears to be a daunting task; not only the labor involved, but I strongly suspect some brittle-with-age plastic parts might not survive the ordeal. Any thoughts here?
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With practice, one can pull a dash in an hour; in another 15 minutes, the entire heater/A/C box is out, on the bench. I
1) pull the instrument panel
2) pop the light switch knob, parking chain, covers for the A pillars;
3) drop the steering column, 2 nuts behind the IP
4) 5? screws, and pull the dash out the right door!
record: 24 minutes.
Steering wheel is left on. It actually takes more time to get the seats, console, and
carpets out of the way -- and few people think these are "daunting tasks". A dash looks way worse that it actually is.
I've not had any problem with the plastic parts, especially on the heater. I've done 4.
All the clips released fine, even some that were rusty.
Here's a picture of the heater with the clips highlighted. I did this on the first one so I wouldn't miss any when re-assembling the unit:
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https://picasaweb.google.com/franklynb0/ACaliforniaWagon#5602556050845675714>
Here's the crap that is in the box, and the reason you'll never get a spray can to do the job:
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https://picasaweb.google.com/lh/photo/N9wjvBiAEQiw3ri2vUvNfA?feat=directlink>
here's the evap in its1/3rd box, and the reason you don't want to start drilling:
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https://picasaweb.google.com/lh/photo/3vQB7zdKP05JtzpxLUppwg?feat=directlink>
Here's the intake duct, and one more reason why spray bombs are a waste:
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https://picasaweb.google.com/lh/photo/HjA5afEXhiw97qXNLK0OCw?feat=directlink>
Even if you get the evap clean with a spray, how did you get to the intake to clean it?
behind the evap???? won't the crap just clutter it up if not removed? of course it will!
Blower box dis-assembly is a "pop the clips" 30 minute task.
15 once you've done it a couple of times. I use a parts washer to clean the
coils with a Zep product, which is slow
but enviromentally friendly.
The re-assembly goes much faster, especially the dash.
hth.