N62 engine valve stem seals

[X5only]

Found a rival of the AGA valve stem seals tool and it sells for only $350!
German Speciality tools BMN62VSST
https://www.ebay.com/itm/BMW-Valve-S...e/163358707098

It works great and gets the work done though not as well as the AGA tool, but the AGA tool is bloody ridiculously expensive. It's not worth it for the DIY in my opinion when the GST tool serves exactly the same purpose- changing the valve stem seals without removing the head. I think instead of renting the AGA tool it's better to just buy the GST tool and take your time doing the valve stem seals (most rental fee is about $200-300 per week or two). An endoscope is a must have for the difficult to see areas. It makes a significant difference I have to say. They're cheap - a good one goes for around $25.

If you notice in the picture (the green cord), I'm using the bungee cord technique- no air compressor! I'm at peace with my neighbors and my wife as I quietly work late evenings.