Quote:
Originally Posted by Old Mechanic
In a perfect world, if you spend the money, they fill them with slight pressure and a hose hooked to the bleeder that collects the overflow for future use.
Obviously if the cost of the radiator is an issue then an expensive piece of equipment to do a job once, makes little sense and I referenced a previous experience when I had to go back to the shop to get my Riviera bled again.
It takes little effort to break the bleeder loose a few times to confirm the system has no air pocket, I call that good insurance and once done then you can just monitor the recovery bottle for any change the would indicate loss of coolant.
regards
Mech
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There's no harm in bleeding repeatedly, it's just not necessary to do so.
It isn't necessary to use a pressure bleeder either but that is how it is done on the production line.
If you want a ghetto version of the pressure bleeder, a garden hose connected to the recovery hose can be used, pushing past the recovery valve in the radiator cap. That does leave some part of the recovery hose empty though, so there will be air pushed out of that into the recovery tank the first time operating temperature is achieved.
Something else: In the linked video, the front of the car is raised. This is not a good idea. The cooling system is designed to bleed properly with the car level.