Compression Ignition Addict
Join Date: Sep 2012
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I remember needing an 8mm 12pt or spline socket to get one bolt out of the valve. Not exactly a special tool, but it's a little unusual if you just have a basic socket set.
I also got a lot of use from my ratcheting combination wrenches. Again, not an unusual tool, but not everyone has them.
I agree with the others that you should flush your coolant while you're at it. You have to drain it to remove the EGR coolers anyway, right? Why not go a little extra and do it right. It does take a little time though, you're right.
The coolant filter will help get the solids out of your coolant, ie sand and stuff, but it won't help with nitrates or pH or anything. And if your coolant is real bad, or gelling, the filter won't help once it gets full or clogged. It would be a good idea to flush it as soon as possible.
For getting air out of the system, I use an Airlift. It creates a vacuum in the cooling system, which sucks all the air out while also checking the system for leaks, and then sucks the coolant from the bottle to fill the system. It's a pretty nice device. There are a few companies that make variations of it.
As for the plastic y-pipe, I don't remember putting anything like that on when I did mine. I took a bunch of stuff off though..