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hey i have a question about the r33 gtst aircon hose, the big one that has a silver insulation over it and goes from the firewall to the compressor, i read that a series1 hose does not fit on a series2 and i was wondering if anyone knows what is different with the series1 hose that makes it not fit on the series2 cos i need a series2 hose and i want to know how to tell by looking at it if its a series 1 or 2 so that i dont get the wrong one just in case the person i buy one from doesnt remember if it was a series 1 or 2 hose or it gets mixed up.

if anyone can help i would really appreciate it thankyou ...

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Hi Mick,

I have attached a few pictures showing the difference between R33 GTS-T S1 and S2 Air conditioning hoses that connects from the vehicles firewall to the A/C compressor housing. I have marked the S2 hose in all pictures listed.

I have a set of S2 hoses and a S2 compressor for sale all fully working if your interested images below of actual items.

The difference between the S1 and S2 hoses are that the flanges/connections on the end of both hoses top and bottom are significantly larger than the S1 hose not only that but the "O" rings sit into a groove on the S2 hoses meaning if S1 hoses where used on a S2 compressor it would leak as the "O" rings on a S1 hose would not seal properly on the compressor side of the A/C system.

post-66083-0-50499300-1392687607_thumb.jpg

post-66083-0-07574400-1392687615_thumb.jpg

post-66083-0-20036500-1392687626_thumb.jpg

post-66083-0-32096200-1392687632_thumb.jpg

Edited by DarkRyda
  • Like 2
  • 2 weeks later...

Thankyou so much for your reply, you put in alot of time and effore getting pics and marking them and you explained it really well to me. Thankyou again this really helped me, i just brought one just before you replied to me from a guy, i havnt received it yet and i was a lil worried about if it was the right one at first but after seeing your reply and the photos i compared it to the photo the guy sent me and thanks to you i am now sure it will be the right one.

You done a really good job on your reply mate and i think you would be awesome at doing diy tutorials and stuff

Thankyou so much for your reply, you put in alot of time and effore getting pics and marking them and you explained it really well to me. Thankyou again this really helped me, i just brought one just before you replied to me from a guy, i havnt received it yet and i was a lil worried about if it was the right one at first but after seeing your reply and the photos i compared it to the photo the guy sent me and thanks to you i am now sure it will be the right one.

You done a really good job on your reply mate and i think you would be awesome at doing diy tutorials and stuff

Your welcome mate, glad it helped you out, hopefully it also helps other people in need of the same answer as you.

  • 1 month later...

Hey guys, I've got a series 1, and I installed a series 2 compressor (was told it was series 1 when I bought it) and didn't notice the different size connectors until it didn't hold vacuum! lol. I was just going to get a series 2 hose and put it on there, but by the looks of those pictures, the firewall end of the hose is different as well? Do you think I would be able to take it to someone and they could cut off the ends and swap them over? Or would there be another way around this?

Also I only noticed it leaking from that one hose, but can anyone confirm if the other hose is still the same? Its the one from the compressor to receiver drier (or to the condenser, I can't remember off the top of my head)

Thanks in advance!

Hey guys, I've got a series 1, and I installed a series 2 compressor (was told it was series 1 when I bought it) and didn't notice the different size connectors until it didn't hold vacuum! lol. I was just going to get a series 2 hose and put it on there, but by the looks of those pictures, the firewall end of the hose is different as well? Do you think I would be able to take it to someone and they could cut off the ends and swap them over? Or would there be another way around this?

Also I only noticed it leaking from that one hose, but can anyone confirm if the other hose is still the same? Its the one from the compressor to receiver drier (or to the condenser, I can't remember off the top of my head)

Thanks in advance!

You wont be able to cut off the ends and swap them over as there is no way a welder can weld such small pipes and if they manage to weld them its unlikely they will hold the A/C pressure for long, that was the advice given to me by multiple welders/mechanics.

Solution: Purchase a series 1 compressor (while you have it in your hand i recommend inspecting the bearing and changing it if needed) then simply remove the series 2 compressor and bolt the series 1 compressor in its place and use your factory series 1 A/C lines running from the A/C compressor to the firewall.

Tip: Replace all your A/C "O" ring seals while everything is disconnected ;)

Edited by DarkRyda

You wont be able to cut off the ends and swap them over as there is no way a welder can weld such small pipes and if they manage to weld them its unlikely they will hold the A/C pressure for long, that was the advice given to me by multiple welders/mechanics.

Solution: Purchase a series 1 compressor (while you have it in your hand i recommend inspecting the bearing and changing it if needed) then simply remove the series 2 compressor and bolt the series 1 compressor in its place and use your factory series 1 A/C lines running from the A/C compressor to the firewall.

Tip: Replace all your A/C "O" ring seals while everything is disconnected ;)

Thanks for your reply. Hmm thats what I thought, but didn't want to hear :/ lol. Yeah I'd rather not go down the series 1 compressor route because I've already bought and put in the series 2 one, but I might have to. Would there be any way to join them where the rubber hose in between the two ends goes? It's kind of hard to explain. Im not sure if its crimped on or how they join it?

You can take the pipes to your local welder, ac specialist, mechanic etc... and ask around or give them a call.

In my opinion you have 3 options.

1. Swap to a series 1 compressor and A/C lines.

2. Remove and change evaporator unit to a series 2 (two silver pipes / connections coming out of the firewall)

3. Visit an aircon specialist and get them to make you custom made pipes from the A/C compressor to the firewall evap unit.

I know which one i would choose...

You can take the pipes to your local welder, ac specialist, mechanic etc... and ask around or give them a call.

In my opinion you have 3 options.

1. Swap to a series 1 compressor and A/C lines.

2. Remove and change evaporator unit to a series 2 (two silver pipes / connections coming out of the firewall)

3. Visit an aircon specialist and get them to make you custom made pipes from the A/C compressor to the firewall evap unit.

I know which one i would choose...

Yep that seems fair haha. I might ask around about the joining of the pipes, but I dare say you're right, and Ill end up having to get a series 1 compressor. Cheers heaps for your help :)

Edited by Linzi

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