Just a little job today, but I really hate doing this because it’s so fiddly. I installed
the o-ring supplied by Dieselgeek into the high pressure end of the 300tdi injection pump. This pump was not leaking, and had very low miles, but was manufactured in 2006 so I figured that the job was cheap insurance against future failure. Plus it really sucks trying to do this with the fenders, air cleaner, coolant bottle etc all in place.
The big suck is that you have to remove four T-30 torx bolts and two 5mm hex cap screws. These are tight and usually frozen but the margin of error for stripping or rounding them out is very small. Last time I did this job in my other tdi, one of the screws started to strip and the only way to prevent a disaster was to remove the pump, install the o ring on the bench and then reinstall everything and re-time the engine.
I stopped taking pictures at the point that my hands became covered in Diesel.
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