Sorry, I typed my first post with my smartphone, I made it short.
During the first 300km, the engine worked fine, oil pressure was good and everybody was happy. Then, I over revved it due to a loose fuel hose that get stuck in a carb shaft will I was changing gear... It revved well beyond 6.000rpm. My tach goes to 6000 and the needle get stuck 1cm past the limit. I took me 3-4 sec to shut it off. Belt broke and fly off, and I even wasn't doing something dumb as I was going to the bakery...
I don't know if this can be a cause to the problem? Engine ran fine after that, but oil pressure is dropping since. I now only had 3bar at start up and when engine is barely reaching 80°c, I only had 0.5 bar of pressure at idle and about 2.5 @ 3000rpm...
I first check if the oil pressure relief valves where not stuck and they where fine (but I didn't check their bores, I will do that), I also check the condition of the oil pump which looked fine (I dont know how to check clearance between gears though ). I also changed the oil pressure sender. (VDO 5 bars)
I tore down the engine today. I found scored bearings that flacked off for both the cranck and the camshaft, rods bearings where a little better but already showed signs of wear, everything else look fine. No scored cranck journals, no pitted cam followers all look fresh. I think I saved the engine by not driving it anymore when I suspected a problem.
I will check the cranck to see if still within specs, I don't think the case can be damaged or can it be?
I asked advices from 2 mechanics friends who are into vintage cars and VW and they both think to a lack of oil that scored the bearings.
Crancks bearings are Silverline and cam bearings are Mahle dual trust. cam followers are CB lightweight and they look OK.
![](https://lh4.googleusercontent.com/-rI0-WmO7w-k/VV4mHUg0T3I/AAAAAAAAFi4/04P5M2IY_SQ/w481-h641-no/coussinet%2B3.jpg)
![](https://lh3.googleusercontent.com/gMcZV0aBPl-MQpKWE4b0dAz6Z3oUkJXJfxWq8Ns5xFI=w481-h641-no)
![](https://lh4.googleusercontent.com/YX5RXYnT_T4ru1BURE7RlibirYVUl5GX3apuUmIaYGc=w856-h642-no[img][img]https://lh5.googleusercontent.com/-5uEdJtNMupk/VV4mIwK9XEI/AAAAAAAAFjI/ScXABnV0TIs/w856-h642-no/coussinet2.jpg)
![](https://lh5.googleusercontent.com/-Z0-cl1wOaSE/VV4mH5KmxQI/AAAAAAAAFjA/SwcWmcRVw7U/w856-h642-no/coussinet%2B4.jpg)
![](https://lh5.googleusercontent.com/-5uEdJtNMupk/VV4mIwK9XEI/AAAAAAAAFjI/ScXABnV0TIs/w856-h642-no/coussinet2.jpg)