Cost of converting A/C to R134a

Poodles

Poodles

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Jul 22, 2006
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From what I've read, the new seals aren't any better (leak wise, though they can take more heat), but old hoses can and will leak.

I wish you luck and hope they did a good job, or a year from now you'll be in my shoes...
 
suprabad

suprabad

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Jul 12, 2005
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Poodles;1048390 said:
From what I've read, the new seals aren't any better (leak wise, though they can take more heat), but old hoses can and will leak.

I wish you luck and hope they did a good job, or a year from now you'll be in my shoes...
Click to expand...


I bought my parts from my local Toyota dealer and was told that the new parts were r134 compliant. Maybe he was bullshitting, but it's been over a year and my a/c is going strong and pressure has remainded stable.

I would think someone like Jeff Lang could give us the straight dope on this...
 
CyFi6

CyFi6

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I would not reccomend replacing every seal in the system, if it were me, i would buy an AC o ring kit (you can get them at most automotive parts stores) and just replace every seal you can easily get to. It isnt perfect, but youre reducing the chances for your leaks and you are not having to tear deep into the dash.

The compressor annular seal is a very common leak point, but i do not have any info on how to actually replace it or how much it costs. Just something to look into maybe.
 
Poodles

Poodles

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Jul 22, 2006
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To properly flush the system, you have to flush the parts individually. So you have to take every connection apart anyway, so rplace the seal while you're there...
 
suprarx7nut

suprarx7nut

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Nov 10, 2006
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Wow, A/C stuff is complicated at best.

I'm going for an R-12 refill after a leak test of my system and if that doesn't do the trick I may try R-134 or just rip out the system entirely. Ugh.
 
suprarx7nut

suprarx7nut

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CyFi6;1050133 said:
better make sure it doesn't leak out, that stuff is expensive...
Click to expand...

Ya, I'll have to get a price quote from the dealer i work at. The disappointing thing that my discount is based on cost and I doubt they make anything at all selling R-12. :(

If it's going to cost 150+ just to fill it, I might replace seals beforehand.
 
Poodles

Poodles

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Jul 22, 2006
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JJ!!!

I got the overhaul kit for my compressor....but I can't find directions for the actual teardown in the TSRM. Do you know where I can find info?
 
jetjock

jetjock

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Jul 11, 2005
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Hmmm. I see that. Odd, the 87 TSRM has breakdown, rebuild, and reassembly procedures following that page. Maybe you can get somebody to scan it for you. Course, you could always get off your cheap ass and buy one ;)

Or Just take the thing apart and replace everything you got in the kit...
 
jetjock

jetjock

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I've seen that. It is the same compressor. Standby for the bolt torque...

edit: 19 ft/pounds on the through bolts. The only SST needed is for removing the front seal plate but you can wing it. It's similar to pressing a bearing out. Be sure to lube all gaskets and O rings with compressor oil. That'll be mineral for CFC-12 or PAG or Ester for 134a. 80 cc (or milliliters, same thing) total charge. Flush the rest of the system. Add a new receiver dryer and you should be good to go.
 
Poodles

Poodles

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Jul 22, 2006
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Thanks, I would do this through PM< but I think it will benefit everyone.

Also, I have the main rebuild kit, should I also get the shaft seal kit?
 
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