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Author Topic: Removing air con system  (Read 2050 times)

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GastronomicKleptomaniac

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Removing air con system
« on: 26 May 2022, 16:41:41 »

Whilst reassembling I'm thinking I'll leave all the aircon gubbins off. For one thing it's not something that's ever worked in... any of my cars, actually... and for another I'm incredibly lazy and it'll mean less work to put it all back together.

Remove the pump... leave the pipes off... fit a shorter drivebelt - anything else to think about?
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STEMO

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Re: Removing air con system
« Reply #1 on: 26 May 2022, 17:25:03 »

Whilst reassembling I'm thinking I'll leave all the aircon gubbins off. For one thing it's not something that's ever worked in... any of my cars, actually... and for another I'm incredibly lazy and it'll mean less work to put it all back together.

Remove the pump... leave the pipes off... fit a shorter drivebelt - anything else to think about?
Global warming.
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Doctor Gollum

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Re: Removing air con system
« Reply #2 on: 26 May 2022, 17:47:12 »

Whilst the car is in pieces is the best possible time to go through it and replace all of it.  :y
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Stu.C

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Re: Removing air con system
« Reply #3 on: 26 May 2022, 21:29:44 »

It's a 6PK1900 belt if you delete the aircon compressor.


Then also a bunch of relays, two fans and half a mile of pipework if you're feeling keen.  :y
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GastronomicKleptomaniac

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Re: Removing air con system
« Reply #4 on: 26 May 2022, 21:55:38 »

It's a 6PK1900 belt if you delete the aircon compressor.


Then also a bunch of relays, two fans and half a mile of pipework if you're feeling keen.  :y

All that is already off the car...

Is there a different bracket for the PAS pump or should I just take the grinder to the old one?

(I think they share the bracket but it's been months since I unmantled it...)
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Re: Removing air con system
« Reply #5 on: 27 May 2022, 01:27:13 »

Joking aside, the front fans are integral to cooling the engine, as are the relays.  ;)

Deleting the pipework is all well and good, but you'll also need to blank the bulkhead holes.

Personally speaking, it would be a shame to go to all the effort you have so far, and not have it complete and working. Besides, all face-lift cars left the factory with aircon and dual zone climate control, so it may as well be there...  :y
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GastronomicKleptomaniac

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Re: Removing air con system
« Reply #6 on: 27 May 2022, 07:47:10 »

And it's probably easier to put the original bits in rather than foddling around finding blanks... Not helping my laziness...! :y
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Stu.C

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Re: Removing air con system
« Reply #7 on: 27 May 2022, 09:37:23 »

Joking aside, the front fans are integral to cooling the engine, as are the relays.  ;)


The one behind the radiator, yes - but the two in front aren't used on a non-AC car (on the right below). It does away with one of the radiator temp sensors, and the chained relays for the aircon fans.


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Stu.C

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Re: Removing air con system
« Reply #8 on: 27 May 2022, 09:42:55 »

Is there a different bracket for the PAS pump or should I just take the grinder to the old one?

(I think they share the bracket but it's been months since I unmantled it...)


I haven't got as far as looking at that bracket yet on my engine, so if you get there first let me know  :y  It looks like it's a shared bracket...
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Re: Removing air con system
« Reply #9 on: 27 May 2022, 09:48:35 »

Joking aside, the front fans are integral to cooling the engine, as are the relays.  ;)


The one behind the radiator, yes - but the two in front aren't used on a non-AC car (on the right below). It does away with one of the radiator temp sensors, and the chained relays for the aircon fans.



You miss the point, the 3.2s ALL left the factory with AC and front fans and even if AC is switched off, the front fans still run if the coolant temp demands it.

Deleting the entire ac set up will potentially cook the engine as the residual heat in a 3.2 on a hot day will cook burgers.
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Stu.C

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Re: Removing air con system
« Reply #10 on: 27 May 2022, 12:03:48 »

You miss the point, the 3.2s ALL left the factory with AC and front fans and even if AC is switched off, the front fans still run if the coolant temp demands it.

Deleting the entire ac set up will potentially cook the engine as the residual heat in a 3.2 on a hot day will cook burgers.


Ahh, did they change the cooling design on the 3.2 vs the 3.0 because of that then?
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GastronomicKleptomaniac

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Re: Removing air con system
« Reply #11 on: 27 May 2022, 12:57:05 »

Is there a different bracket for the PAS pump or should I just take the grinder to the old one?

(I think they share the bracket but it's been months since I unmantled it...)


I haven't got as far as looking at that bracket yet on my engine, so if you get there first let me know  :y  It looks like it's a shared bracket...

Definitely a shared bracket, has to go on first to give something to mount the PAS pump onto :y
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Re: Removing air con system
« Reply #12 on: 27 May 2022, 13:31:26 »

You miss the point, the 3.2s ALL left the factory with AC and front fans and even if AC is switched off, the front fans still run if the coolant temp demands it.

Deleting the entire ac set up will potentially cook the engine as the residual heat in a 3.2 on a hot day will cook burgers.


Ahh, did they change the cooling design on the 3.2 vs the 3.0 because of that then?
Possibly, but they didn't build the face-lift without AC, even Plod, and that includes the last 3.0/2.5 :)
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Stu.C

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Re: Removing air con system
« Reply #13 on: 28 May 2022, 11:57:18 »

Possibly, but they didn't build the face-lift without AC, even Plod, and that includes the last 3.0/2.5 :)


Someone needs to go back in time and tell Vauxhall/Haynes that then - would've saved them the bother of doing those electrical layouts ...  ;D
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Re: Removing air con system
« Reply #14 on: 28 May 2022, 12:10:18 »

Possibly, but they didn't build the face-lift without AC, even Plod, and that includes the last 3.0/2.5 :)


Someone needs to go back in time and tell Vauxhall/Haynes that then - would've saved them the bother of doing those electrical layouts ...  ;D
Haynes officially only covers the pre and mid face-lift cars, although it serves as a reasonable reference for the face-lift cars as they have more in common than not, especially mechanically  ;)
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