Squeaking Air Con Compressor

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R

rads

Guest
As per title, air con compressor has started to make gently unhappy
noises at idle.

Sounds like something in there is running a little dry.

Now, I consider it the 8th wonder of the world that the aircon on the
old bus still works at all, and would like to prolong the situation if
possibe.

Is there an "oil hole" anywhere i could try squirting a little of
castrol's finest into to?

Ta.

David

1986 Efi Range Rover
 

> As per title, air con compressor has started to make gently unhappy
> noises at idle.
>
> Sounds like something in there is running a little dry.
>
> Now, I consider it the 8th wonder of the world that the aircon on the
> old bus still works at all, and would like to prolong the situation if
> possibe.
>
> Is there an "oil hole" anywhere i could try squirting a little of
> castrol's finest into to?
>
Switch it off and don't switch it on again until you have had the pressure
checked! The lubricant is contained within the refrigerant, if it is running
low you will bugger the compressor up.


 
On Fri, 30 Sep 2005 11:39:23 +0000 (UTC), "SimonJ" <[email protected]>
wrote:

>Switch it off and don't switch it on again until you have had the pressure
>checked! The lubricant is contained within the refrigerant, if it is running
>low you will bugger the compressor up.

Good grief man, you don't think I actually use the air con do you?
Fuel consumption is only just into single figures at the best of
times!

Squeak happens even when air con IS off, but of course pulley and
input shaft still spinning. Suspect a dry / worn bearing somewher at
the front end of the compressor.

David
 
Is the tension in the belt OK?? Mine squeaks from the compressor when
the belt is too slack.

Jon

On Fri, 30 Sep 2005 08:09:29 GMT, rads
<[email protected]> wrote:

>As per title, air con compressor has started to make gently unhappy
>noises at idle.
>
>Sounds like something in there is running a little dry.
>
>Now, I consider it the 8th wonder of the world that the aircon on the
>old bus still works at all, and would like to prolong the situation if
>possibe.
>
>Is there an "oil hole" anywhere i could try squirting a little of
>castrol's finest into to?
>
>Ta.
>
>David
>
>1986 Efi Range Rover

 
On Fri, 30 Sep 2005 12:37:02 +0000 (UTC), Jon <[email protected]>
wrote:

>Is the tension in the belt OK?? Mine squeaks from the compressor when
>the belt is too slack.
>
>Jon
>

Have to say, havent checked but it is not a slipping belt squeal, more
of a dry bearing squeaky rattle noise.

David

 


rads wrote:
> On Fri, 30 Sep 2005 12:37:02 +0000 (UTC), Jon <[email protected]>
> wrote:
>
>
>>Is the tension in the belt OK?? Mine squeaks from the compressor when
>>the belt is too slack.
>>
>>Jon
>>
>
>
> Have to say, havent checked but it is not a slipping belt squeal, more
> of a dry bearing squeaky rattle noise.
>
> David

Clutch bearing? Take off the belt and spin by hand. It'll be obvious one
way or the other. Adding lubrication is not really an option.
 
On Fri, 30 Sep 2005 14:09:26 +0100, Dougal
<DougalAThiskennel.free-online.co.uk> wrote:

>
>
>rads wrote:
>> On Fri, 30 Sep 2005 12:37:02 +0000 (UTC), Jon <[email protected]>
>> wrote:
>>
>>
>>>Is the tension in the belt OK?? Mine squeaks from the compressor when
>>>the belt is too slack.
>>>
>>>Jon
>>>
>>
>>
>> Have to say, havent checked but it is not a slipping belt squeal, more
>> of a dry bearing squeaky rattle noise.
>>
>> David
>
>Clutch bearing? Take off the belt and spin by hand. It'll be obvious one
>way or the other. Adding lubrication is not really an option.

Just been doing some Googling and coming to the same conclusion.

Anyone ever changed a clutch bearing?

1986 RR Classic
 

> >Switch it off and don't switch it on again until you have had the
pressure
> >checked! The lubricant is contained within the refrigerant, if it is
running
> >low you will bugger the compressor up.
>
> Good grief man, you don't think I actually use the air con do you?
> Fuel consumption is only just into single figures at the best of
> times!
>

FFS just take the pump off and chuck it in the bloody bin then, problem
solved!

> Squeak happens even when air con IS off, but of course pulley and
> input shaft still spinning. Suspect a dry / worn bearing somewher at
> the front end of the compressor.
>
Does the noise stop when the aircon is switched on? If so it is probably the
bearing in the clutch.

Oh, btw, it just so happens I have a compressor going spare, from a 1989
3.9VSE!
Offers? :)



 
On Fri, 30 Sep 2005 14:33:32 +0000 (UTC), "SimonJ" <[email protected]>
wrote:
>> Good grief man, you don't think I actually use the air con do you?
>> Fuel consumption is only just into single figures at the best of
>> times!
>>
>
>FFS just take the pump off and chuck it in the bloody bin then, problem
>solved!

I know, Iknow, but being a sad engineering type, even if I was to take
the belt off to stop the noise, I would still know it's not right and
wouldn't be able to sleep.

Thanks for offer of compressor, but I suspect that cost of regassing
(let alone cost of compressor) is similar to market value of the
vehicle.

How about lending me your compressor to take apart to see how the
clutch bearing works. I'm sure I could get it back together without
tooo many spare bits....

;-)

David
 
rads wrote:

> Thanks for offer of compressor, but I suspect that cost of regassing
> (let alone cost of compressor) is similar to market value of the
> vehicle.
>
> How about lending me your compressor to take apart to see how the
> clutch bearing works. I'm sure I could get it back together without
> tooo many spare bits....

You'll not get into it without violating the compressor seals I bet.
Halfords and others now supply aircon monitor gauges for you to sniff
the state of the system. Getting a system vacced down and re-gassed
isn't too dear.

Steve
 
On Fri, 30 Sep 2005 16:11:50 +0100, Steve Taylor
<[email protected]> wrote:

>rads wrote:
>
>> Thanks for offer of compressor, but I suspect that cost of regassing
>> (let alone cost of compressor) is similar to market value of the
>> vehicle.
>>
>> How about lending me your compressor to take apart to see how the
>> clutch bearing works. I'm sure I could get it back together without
>> tooo many spare bits....
>
>You'll not get into it without violating the compressor seals I bet.
>Halfords and others now supply aircon monitor gauges for you to sniff
>the state of the system. Getting a system vacced down and re-gassed
>isn't too dear.
>
Was hoping the pully and associated clutch and bearing bits might be a
separate assembly on the front of the compressor, away from all the
trickery of the compressor.

Come on, someone must have had one of these apart........

David

 
On Fri, 30 Sep 2005 16:11:50 +0100, Steve Taylor wrote:

> Getting a system vacced down and re-gassed isn't too dear.

Standard(?) fee at a Land Rover dealers is £99 inc. I suspect if you
could find a nice little local independant aircon company it wouldn't
cost that much.

--
Cheers [email protected]
Dave. pam is missing e-mail



 
On Fri, 30 Sep 2005 11:39:23 +0000 (UTC), "SimonJ" <[email protected]>
wrote:

>Switch it off and don't switch it on again until you have had the pressure
>checked! The lubricant is contained within the refrigerant, if it is running
>low you will bugger the compressor up.

Good grief man, you don't think I actually use the air con do you?
Fuel consumption is only just into single figures at the best of
times!

Squeak happens even when air con IS off, but of course pulley and
input shaft still spinning. Suspect a dry / worn bearing somewher at
the front end of the compressor.

David
 
On Fri, 30 Sep 2005 12:37:02 +0000 (UTC), Jon <[email protected]>
wrote:

>Is the tension in the belt OK?? Mine squeaks from the compressor when
>the belt is too slack.
>
>Jon
>

Have to say, havent checked but it is not a slipping belt squeal, more
of a dry bearing squeaky rattle noise.

David

 

> >Switch it off and don't switch it on again until you have had the
pressure
> >checked! The lubricant is contained within the refrigerant, if it is
running
> >low you will bugger the compressor up.
>
> Good grief man, you don't think I actually use the air con do you?
> Fuel consumption is only just into single figures at the best of
> times!
>

FFS just take the pump off and chuck it in the bloody bin then, problem
solved!

> Squeak happens even when air con IS off, but of course pulley and
> input shaft still spinning. Suspect a dry / worn bearing somewher at
> the front end of the compressor.
>
Does the noise stop when the aircon is switched on? If so it is probably the
bearing in the clutch.

Oh, btw, it just so happens I have a compressor going spare, from a 1989
3.9VSE!
Offers? :)



 
On Fri, 30 Sep 2005 14:33:32 +0000 (UTC), "SimonJ" <[email protected]>
wrote:
>> Good grief man, you don't think I actually use the air con do you?
>> Fuel consumption is only just into single figures at the best of
>> times!
>>
>
>FFS just take the pump off and chuck it in the bloody bin then, problem
>solved!

I know, Iknow, but being a sad engineering type, even if I was to take
the belt off to stop the noise, I would still know it's not right and
wouldn't be able to sleep.

Thanks for offer of compressor, but I suspect that cost of regassing
(let alone cost of compressor) is similar to market value of the
vehicle.

How about lending me your compressor to take apart to see how the
clutch bearing works. I'm sure I could get it back together without
tooo many spare bits....

;-)

David
 
rads wrote:

> Thanks for offer of compressor, but I suspect that cost of regassing
> (let alone cost of compressor) is similar to market value of the
> vehicle.
>
> How about lending me your compressor to take apart to see how the
> clutch bearing works. I'm sure I could get it back together without
> tooo many spare bits....

You'll not get into it without violating the compressor seals I bet.
Halfords and others now supply aircon monitor gauges for you to sniff
the state of the system. Getting a system vacced down and re-gassed
isn't too dear.

Steve
 
On Fri, 30 Sep 2005 16:11:50 +0100, Steve Taylor
<[email protected]> wrote:

>rads wrote:
>
>> Thanks for offer of compressor, but I suspect that cost of regassing
>> (let alone cost of compressor) is similar to market value of the
>> vehicle.
>>
>> How about lending me your compressor to take apart to see how the
>> clutch bearing works. I'm sure I could get it back together without
>> tooo many spare bits....
>
>You'll not get into it without violating the compressor seals I bet.
>Halfords and others now supply aircon monitor gauges for you to sniff
>the state of the system. Getting a system vacced down and re-gassed
>isn't too dear.
>
Was hoping the pully and associated clutch and bearing bits might be a
separate assembly on the front of the compressor, away from all the
trickery of the compressor.

Come on, someone must have had one of these apart........

David

 
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