@Jimmy V. posted:I still have a feeling there is more to the other side of this story. It sounds way over my ability to do the mod myself and appears to have many opportunities for even a pro to make a little mistake that would and could cause more trouble than the intended benefit. Your mileage may vary.
A friend and I have done it to a junk case with a 3/16" drill and it's not that hard- the important thing is to pay attention. There is a thread in the Engines Transmissions Performance forum on the Samba named "Bob Hoover Mods" (I don't know how to give you the link on this laptop I'm on) that further discusses the subject. Alstrup's summary of the modifications' benefits on page 5 is worth the time to find it even if you read nothing else. I'd copy them to here, but again I don't know how to do it on the laptop and my IT kid isn't out of bed yet.
I've said it before but here it is again- this machine work is just an update of the oiling system to make it work better, most of which VW incorporated into the Type 4 engine. Every Type 1 engine on the street will benefit from these modifications. There is no down side. As has been said before, most engine builders won't do them because it adds cost to the build and the engine will run well enough without them, but when you have a higher revving engine than stock (where the mods do the most good), when you see how little effort they take (compared to a 5,000- $10,000 or more engine build) and you understand the benefits gained, why would you not do them? Al