You can make the radiator the highest point in the system by jacking up the front of the car or driving up on ramps.

 

Luckily, my driveway is inclined. That is good enough for bleeding without jacks or ramps.

It still takes 30 minutes to get all the bubbles out of a system.

 

Yes. Of course. But crawling under the car and jack the front up vs. simply use the clear vinyl tube at the bleeder port... to me, its a easy decission.

 

I can't crawl under an S2000. But I know what you mean.

I jack the thing up from the front or use a ramp.

 

Thanks a lot for sharing! I will be using this method soon. Just two questions, would it be a good idea if not recycling the bled coolant back into to the funnel? Would it be less messy if bleeding from the bleeder nipple at cylinder head instead of idle control valve?

 

The bleeder nipple will not work for two reasons: First, you can not attach a hose securely on it. Second, even if you manage to attach a hose to the Bleeder nipple someway, coolant will constantly seep through the treads of the bleeder nipple when you open it. That is one of the reasons why the idea to use the hose at the Idle controll valve as bleeding point is so great.
Of course you could let the coolant bleed back into the funnel. That´s what i did too.

 

This is the best way to refill coolant. Using a system refiller tool. It will put the system into a negative and you can double use it as a semi leak detector as you could see if the system Dosent hold a vaccume. It will eliminate the need to burp the system.

 

A little update, after one year. I didnt touched the system after i bleeded the coolant as i described it. The coolant level stayed the same over the year.
I was thinking about how to improve the method or add a "Finishing touch" to be 100% sure. Important, the car was sitting in Winter storage for some months.

1. I opend the rubber cup at the bleeding port at the firewall and added coolant. My idea was, as this is the highest point, maybe there is a air bubble collected. All it takes was about a half shot glass of coolant to fill it up untill the coolanf flows out of the bleeder. So, yes, looks like there was a very tiny airbubble inside.

2. After if installed cleaned fuel injectors, i start the ngien and let it idle. After the fan started twice, i shut the engine of.

3. Now i used Billmans method and used the bleeder at the cylinder head, but i managed to put a clear PVC tube over the bleeder, because i want to visually watch air bubbles coming out. I used a special socket to open and close the Bleeder with the clear hose attached to it. I pressed the upper radiator hose and opend and closed the Bleeder. I did this three times. The coolant in the clear hose rised about 60 Cm / 2 feet high. There wasnt a single air bubble in the coolant, not a tiny one.

Hope this information is helpfull.