How to change Coolant?

[tmontague]

I opened the block petcock when I flushed my coolant last summer and less than 200ml came out so most comes out the rad. I'd recommend doing it this way at Scott said as it ensure a full removal just don't expect much from the block.

I connected a tube to the petcock on the block and used it to guide coolant into drain pan. I left a wrench on the petcock and would just reach back and turn to open or close it when needed. Makes it easier for a quick open/close as finding it and getting a wrench on it every time is a pita.

If you are installing a new t-stat nake sure you have the bleed/jiggler valve at the 12:00 position so the system will automatically bleed itself.

For the week or so after the coolant change check the level and top up as needed. It will take a month or so for the coolant to go back up to the rad cap. For a few weeks after it will sit at the filler neck even if you keep filling it.

To easily empty the overflow reservoir just detach the rubber hose that goes into the filler neck and hold it below the bottom of the reservoir. The fluid will flow out and put a drain pan underneath to catch it. Refill with water and repeat to flush.