Has anyone replaced their Waterpump on the F4? Is it pretty easy and straight forward? How do I bleed the air out? If anyone can help with instructions it ws greatly appreciated! Thanks guys!

 

You need to get a F4 Clymer Manual or Haynes Manual or both. I got both for my F2, and the Honda Shop manual. Worth their weight in gold.

 

It is actually very easy and i removed mine to address a leak. Turned out it was a dirty gasket and one of the hoses leaked. I do not know the torque specs on the bolts but they are standard 10mm so roughly 7lbs pressure should be fine. Fixed mine a year ago with no leaks or loose bolts. Remember that you will need to have patience when refilling your coolant system and may have to fill cap then uncap and fill again till the fluids do not go down. The fluids part is the hardest part honestly.