I'm in the process of filling the cooling system on my new engine - system is currently bone dry. I have a AirLift vacuum fill system to make easy work of the task and ensure all the air bubbles get removed.
When I pull vacuum on the system I easily reach ~24 psi (instructions say to get the vacuum between 24 and 26 psi). I let the system set for about 10 minutes under vacuum to see how much vac I lose in this time. The system seems to loose about 4-psi in 10 minutes. Is this normal or acceptable? This is my first time using a vacuum fill system so I'm not certain if this loss of vacuum indicates a possible cooling system leak?
Thanks,
Paul
When I pull vacuum on the system I easily reach ~24 psi (instructions say to get the vacuum between 24 and 26 psi). I let the system set for about 10 minutes under vacuum to see how much vac I lose in this time. The system seems to loose about 4-psi in 10 minutes. Is this normal or acceptable? This is my first time using a vacuum fill system so I'm not certain if this loss of vacuum indicates a possible cooling system leak?
Thanks,
Paul