Blown Motor, Engine Rebuild/Replacement.

Spooler · 07-07-2014, 09:38 PM

Yes, you need to pull a vacuum on the system once you connect it back up. It will remove the air will also help you check for leaks. This will prevent contamination of the system. IF you get an air pocket in the system you will see an increase in pressure while the system runs. It will rise up and fall as the air passes through. You can vacuum the system with a machine or gauge set with a vacuum pump. The best way is with an R134a A/C machine. You can then put the correct weight of refrigerant in the system and oil, if needed. If you have a good amount of miles on the car, It is a good idea to replace the receiver dryer. This is the filter for the system. It filters out all of the moisture and trash.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Blown motor!!!!	COSMO	Forced Induction	166	11-25-2013 08:33 PM
Someone in the DFW area who can rebuild a 370z motor	Denny McLain	Engine & Drivetrain	16	01-29-2013 05:27 PM
370z engine blown	Fabsnoop	Nissan 370Z General Discussions	53	06-02-2012 11:29 PM
WORST DAY!!!! Possible engine blown???!!!!	Westwood	Engine & Drivetrain	189	04-09-2012 11:28 AM
vq37vhr ( 370z motor ) NOT BLOWN	soaka1	Wanted	0	03-10-2010 10:01 AM

07-07-2014, 09:38 PM	#11 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 14,058 Drives: 2013 Nismo 370z Rep Power: 2684393	Yes, you need to pull a vacuum on the system once you connect it back up. It will remove the air will also help you check for leaks. This will prevent contamination of the system. IF you get an air pocket in the system you will see an increase in pressure while the system runs. It will rise up and fall as the air passes through. You can vacuum the system with a machine or gauge set with a vacuum pump. The best way is with an R134a A/C machine. You can then put the correct weight of refrigerant in the system and oil, if needed. If you have a good amount of miles on the car, It is a good idea to replace the receiver dryer. This is the filter for the system. It filters out all of the moisture and trash.