I just flushed out my radiator and once I pour in fresh water/coolant… should I bleed the system or not necessary??
It is a must!! Air in the cooling system is very dangerous to your engine.
Open the bleed vavle screw located infront of the radiator just where the upper radiator hose links with the engine block.
Poor coolant until you can see a constant stream of coolant comming out of it. It is a good practice to squeez the hoses in places where you suspect there may be some air stuck. Make sure you do it before you completely fill the system up.
After that, run your car for 10 min. or so making sure your fans have kicked in twice at least, then check the level again and adjust without the need to bleed.
good luck.
hmm I just left the rad cap off an kept topping up fluid till the car fully warmed up… that seems to have worked for me… also kept some coolant in the resivoir.
you still have to bleed the system. If air gets to your water pump; you can kiss it goodby!
SerialOne did it right and is adequate for getting all the air out of the system upon replenishing. The air bleed screw that Armandy mentioned is ineffective at completely removing the air form the cooling system and has been discontinued on newer Honda motors for this reason.
Originally posted by Ive
SerialOne did it right and is adequate for getting all the air out of the system upon replenishing. The air bleed screw that Armandy mentioned is ineffective at completely removing the air form the cooling system and has been discontinued on newer Honda motors for this reason.
You’re exactly right, that’s what we were tought at Acura school. And the method SerialOne mentioned is standard practice for Honda/Acura service depts.
Honda didn’t add the bleed screw for looks… it’s because air collects there when refilling the system. It is true that most cars and newer hondas can simply be topped off at the radiator while warm and running, though. (I worked for an acura dealer too, and the 1st generation integs were even more prone to get air pockets)
That’s the only way I’ve been shown how to do it… I’ve done it a few times now and I have yet to have a problem.
I have yet to run into a problem changing/adding coolant to the car with this method.
But if you are really concerned just keep an eye on the coolant level for the next couple of days an make sure the overflow resivoir is kept semi topped up.
you guys got me worried. I did my two Tegs in the past two weeks. one G2 and one G3 and I did them both using the bleed screw and then warming up the car and opening the radiator again to top it off. Shall I repeat or something??
Otherwise both cars been runing quite well.
On later model hondas the bleed screw is completely eliminated, at least on 95 and up Del Sol VTECs–I know this because I broke my bleed screw on my B16A and went to replace the whole neck with a USDM part from a Del Sol and there wasn’t a bleed screw–dealer said they were not needed.
Originally posted by Armandy
[B]you guys got me worried. I did my two Tegs in the past two weeks. one G2 and one G3 and I did them both using the bleed screw and then warming up the car and opening the radiator again to top it off. Shall I repeat or something??
Otherwise both cars been runing quite well. [/B]
if they’re running fine then I wouldn’t be too worried… but if you’re concerened about it, just remove the rad cap when it’s safe to do so… like after the car has cooled down, an start the car an see if the coolant level changes… takes all but 15-20mins for piece of mind
that is very true… I’ll top both of them of together! 15 min and both are done!!!
Thanks.