can i start with no ac condenser ??
can i start with no ac condenser ??
Author
Discussion

ARDA

Original Poster:

189 posts

206 months

Wednesday 20th January 2010
quotequote all
hi i was wondering if can start the cerb with no aircon concenser ? i will be installing the radiator and oil cooler tomorow hopefully i will star the engine ?

julian64

14,325 posts

284 months

Wednesday 20th January 2010
quotequote all
Yep. The danger is running the pump without oil in it. (oil is supposed to be in the refrigerant) Or having the system open to the air for any length of time (rubber seals in the system dry out and crack causing difficult to sort leaks)

ARDA

Original Poster:

189 posts

206 months

Wednesday 20th January 2010
quotequote all
julian64 said:
Yep. The danger is running the pump without oil in it. (oil is supposed to be in the refrigerant) Or having the system open to the air for any length of time (rubber seals in the system dry out and crack causing difficult to sort leaks)
what pump are you talking bout pump that runs the ac ?

JensenA

5,671 posts

260 months

Wednesday 20th January 2010
quotequote all
ARDA said:
julian64 said:
Yep. The danger is running the pump without oil in it. (oil is supposed to be in the refrigerant) Or having the system open to the air for any length of time (rubber seals in the system dry out and crack causing difficult to sort leaks)
what pump are you talking bout pump that runs the ac ?
Yes he means the A/C pump. Just make sure the Air Con is switched off. (The little switch on the Heater knob panel)

ARDA

Original Poster:

189 posts

206 months

Wednesday 20th January 2010
quotequote all
JensenA said:
ARDA said:
julian64 said:
Yep. The danger is running the pump without oil in it. (oil is supposed to be in the refrigerant) Or having the system open to the air for any length of time (rubber seals in the system dry out and crack causing difficult to sort leaks)
what pump are you talking bout pump that runs the ac ?
Yes he means the A/C pump. Just make sure the Air Con is switched off. (The little switch on the Heater knob panel)
i got it thank you smile ijust dont wanna fk anything up already paid enough on repairs wink

ridds

8,372 posts

274 months

Wednesday 20th January 2010
quotequote all
AC won't run without detecting gas pressure in the system so you'll be fine.

skidoo

400 posts

220 months

Wednesday 20th January 2010
quotequote all
ARDA said:
hi i was wondering if can start the cerb with no aircon concenser ? i will be installing the radiator and oil cooler tomorow hopefully i will star the engine ?
DONT START IT UP WITHOUT THE OIL COOLER ON UNLESS YOU JOIN THE PIPES TOGETHER or you will loose all your oil yikes

s.m.h.

5,733 posts

245 months

Wednesday 20th January 2010
quotequote all
How will he lose the oil?

The system will sense no pressure in the pipes (due to there being no gas!) and the low pressure switch will not engage the power to the compressor clutch. Therefore the pulley should just spin without turning the compressor. I'd ensure the pipes are plugged though as I cant say its something Ive ever done..

ridds

8,372 posts

274 months

Wednesday 20th January 2010
quotequote all
think skidoo was refering to the engine oil due to the oil cooler and rad not being in yet.

s.m.h.

5,733 posts

245 months

Wednesday 20th January 2010
quotequote all
OOOps sorry - re-read the post.... see what he meant smile

skidoo

400 posts

220 months

Wednesday 20th January 2010
quotequote all
wobblebiggrin

SL500

469 posts

295 months

Wednesday 20th January 2010
quotequote all
Not a problem. Just pull off the spade connector feeding the compressor clutch. The connection is right near the flywheel. Yes and seal off the pipes with insulation tape as if you get moisture in the open pipes then the system will be buggered up when you next need it.Much better to run the car with the a/c condenser fitted though. They are not that expensive new either.

ARDA

Original Poster:

189 posts

206 months

Wednesday 20th January 2010
quotequote all
SL500 said:
Not a problem. Just pull off the spade connector feeding the compressor clutch. The connection is right near the flywheel. Yes and seal off the pipes with insulation tape as if you get moisture in the open pipes then the system will be buggered up when you next need it.Much better to run the car with the a/c condenser fitted though. They are not that expensive new either.
i know they are not expensive i just cant wait, i wanna start fitting everything in smile

Ireland

3,517 posts

244 months

Wednesday 20th January 2010
quotequote all
The air-con system is NOT part of the engine, it's just powered by the engine.

There is no problem running it without the condenser.

As said already leave the air-con OFF and you'll be fine.


Oh, and FWIW, it's dirt and / or the moisture in the air that caused the biggest problems.

Both can cause the system to block up when it's running.

The dirt can obviously physically block the smallest point in the system and the moisture can actually freeze inside the system and block the gas from circulating.


When you put it all back together make sure to get the air-con system sorted by a refrigeration specialist.

Don't try the cheap route and get one of the DIY things form Halfords, etc as proper vacuuming of the system is essential and the DIY kits won't do that for you.

smile