2015/12/17 08:56:00
Guest
I have a mr2 early 1993 Turbo Japanese import. The air conditioning has been leaking and found a faulty Tx valve. I have searched the Internet and the Japanese mr2 was recalled for a faulty Tx expansion valve that fails in high humidity. So when looking up the part number, due to the recall they are not available / deleted.

Has anyone purchased a a/c Tx expansion valve that superseded the original part and have a supplier and/or part number??

I have ordered one that was said to be compatible (88515-60210 on the packaging and denso 447500-2370 on the part) and when received it is not. The hole sizes for the gas flow are 1mm-3mm different in diameter, the bolt holes are too small not allowing the bolts through (bolts need a 6mm hole all the way through).

Has anyone purchased a a/c Tx expansion valve that superseded the original part and have a supplier and/or part number??
2015/12/17 10:55:14
Peter
Hi Tony,
I recently changed the TX Valve in my 1996 Aus N/A.
I had the same problem as you in identifying & got the wrong one in from Amayama.
I have attached pics of my original, which shows the inlet & outlet with different port sizes.
I got a replacement from Ashdown-Ingram. They seem to have branches all over Aus.
I am fairly sure I still have the Ashdown Ingram box, as well as the wrong valve at home, if you can wait for that info.
Will check later. I presume that the Jap 1993 Turbo is on R134a.
2015/12/17 11:05:19
mr2y
I clicked subscribe to this thread but it didn't seem to do anything... anyway I'll be looking at mine soon so I'm interested in updates here
2015/12/17 16:41:40
Guest
I have been told by many if you want reliable aircon on a 25 year old vehicle; get the system de-gassed, replace ac t/x expansion valve (difficult to get to under the dash behind the glove box - most Tx valves are around $40), clean your evaporator with water and liquid soap (need to remove to get to the Tx valve), replace the drier (under passanger pop up light $30), place all aircon joiner o-rings ($30), service the ac compressor (oil and service fee $70), new gas :) happy days
2015/12/17 17:09:01
Peter
Hi Tony,
That would be pretty good advice. I am not an automotive A/C expert.
Because I knew getting to the Evaporator was going to be a challenge, I removed the passenger seat first.
After that it became straight forward, & probably no worse than anything else on an MR2 for access.
My Evaporator did need a clean, but once it was out that was easy.
I found changing the Filter Drier more difficult.
Had to remove the front wheel & the plastic liner, & it was still awkward.
2015/12/17 18:03:46
mr2y
Glad I read about the TX valves in the MR2s. I leave the dryer up to the air con specialist. If they are opened to the atmosphere they they absorb moisture and lose functionality. I usually just throw out the evaporator and put in a new one. They often get gummed up inside the tubing reducing their effectiveness, plus I hate the smell of the 90s stuck to it, especially if someone has smoked in the car. Not just going by part number I'm going to measure before ordering as there are are couple of different sizes in the SW20s it appears.
2015/12/17 23:49:15
Peter
Hi Again,
Back to the original question.
The TX Valve that I bought from Ashdown-Ingram was their Part No TXX 9150 as scanned box attached. It is an R134a Valve. Cost me A$ 72.00 walk in.
The incorrect one that I bought from Amayama is Toyota Part No 88515-33020.
If anyone wants one of those, I'll sell it for $10.00 plus postage.
2015/12/18 07:37:34
Guest
Thanks everyone, I got great replays here and from mr2oc. I have sent the info onto the guy I bought the incorrect part from to see if he has the correct part to exchange with. Dam postage is the killer of the situation when buying parts online.
Have a great Christmas all :)
2015/12/21 00:53:10
mr2y
Did your evaporator look like this?
 
http://imgur.com/tDg2mlQ
 
2015/12/21 11:51:00
Peter
Hi mr2y,
Mine was nothing like that dirty.
It is a very good reason why your A/C wouldn't have been working.
It looks like you have been picking up all of the road grime for a long time.
My recollection is that there should be a filter in the air-stream for when flow through is switched on.
I will have a look at BGB A/C stuff & see if I can find it.
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