8 replies to this topic

[KobukKobuk]

Hi all.

I'm trying to remove and reinstall the engine head, but the air conditioner high pressure hose is in the way.

I'm trying to loosen the nut indicated by the red arrow and move the high pressure hose indicated by the yellow line to the side, but is there anything I should be careful of, such as R134 gas leaks?

If there's a procedure for removing that hose, please let me know.

 

 

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[mab01uk]

You might also find this link below of interest.

 

Useful Facebook link for Classic Mini Air Conditioning:-
https://www.facebook...756900611517382

"For all classic Minis built between 1959-2000 with air conditioning installed, from the factory, aftermarket or factory AC installed later. Only about air conditioning and any related problems, removal, modifications, installation, overheating, etc."
 

 

 

[68+86auto]

DO NOT undo that nut. If you must move the line, you need to unbolt the compressor and move it carefully with everything connected.

 

If you undo it you will lose refrigerent. It doesn't make a difference but that looks to be the low pressure side.

 

You could probably remove the head studs to allow the head to be removed.

Edited by 68+86auto, 03 January 2025 - 10:44 AM.

[stuart bowes]

if you do have to detach it, arrange for a professional to come and recover the gas, vacuum it out, etc, whatever it is they do

 

it is illegal to vent the gasses to the atmosphere as you probably already know but I just thought I'd point out anyway (well, it is in the UK anyway)

Edited by stuart bowes, 03 January 2025 - 11:05 AM.

[KobukKobuk]

DO NOT undo that nut. If you must move the line, you need to unbolt the compressor and move it carefully with everything connected.

 

If you undo it you will lose refrigerent. It doesn't make a difference but that looks to be the low pressure side.

 

You could probably remove the head studs to allow the head to be removed.

 

Thanks for the advice.

ah. It has an L cap, so it's a low pressure hose. You're right.

a few days ago, I removed the stud bolts and installed them to clean the engine head, but I found that the gasket did not fit properly and coolant flowed into the cylinder.

This time I wanted to install the studs into the engine block first and then lower the head from above.

I have no choice since there is an air conditioner refrigerant discharge problem, I think I will have to do it like before.

Edited by KobukKobuk, 03 January 2025 - 07:16 PM.

[KobukKobuk]

if you do have to detach it, arrange for a professional to come and recover the gas, vacuum it out, etc, whatever it is they do

 

it is illegal to vent the gasses to the atmosphere as you probably already know but I just thought I'd point out anyway (well, it is in the UK anyway)

 

if you do have to detach it, arrange for a professional to come and recover the gas, vacuum it out, etc, whatever it is they do

 

it is illegal to vent the gasses to the atmosphere as you probably already know but I just thought I'd point out anyway (well, it is in the UK anyway)

 

I didn't know, but I found out that it's illegal here too.

I guess I'll have to remove the stud bolts and re-gasket them like I did before.

Thanks for the advice.

[KobukKobuk]

You might also find this link below of interest.

 

Useful Facebook link for Classic Mini Air Conditioning:-
https://www.facebook...756900611517382

"For all classic Minis built between 1959-2000 with air conditioning installed, from the factory, aftermarket or factory AC installed later. Only about air conditioning and any related problems, removal, modifications, installation, overheating, etc."
 

 

This is a private group. I'll have to apply to join. Thanks for the link.

 

[Midas Mk1]

Having done an aircon certificated course recently, you really want to be getting all refrigerant recovered before moving too many components. Yes, refrigerant released is bad for the lungs and environment, but if you get any near your eyes it’s blinding. Don’t forget the ac hoses on rover minis are what, 25-35 years old? doesn’t take much stress on a perished hose. At work i’ve seen holes in ac lines on cars that aren’t out of warranty.

Edited by Midas Mk1, 03 January 2025 - 07:59 PM.

[KobukKobuk]

Having done an aircon certificated course recently, you really want to be getting all refrigerant recovered before moving too many components. Yes, refrigerant released is bad for the lungs and environment, but if you get any near your eyes it’s blinding. Don’t forget the ac hoses on rover minis are what, 25-35 years old? doesn’t take much stress on a perished hose. At work i’ve seen holes in ac lines on cars that aren’t out of warranty.

 

Ok. I decided not to touch the air conditioner hose.

Thanks for your feedback.