M20 intermediate shaft failure

[Knoopa]

Then it definitely hasn’t been hot tanked as there was still paint and rust on the outside of the block....

[Knoopa]

So the machine shop that bored the block uses these kind of machines to wash engine blocks: https://www.laborex.com/en/cleaning-...-front-loader/. Does...

[Knoopa]

The block has been cleaned by the machine shop but my native language is not English so I’m not sure if the process they use is the same as hot tanking.

Either way whether the bearings...

[Knoopa]

The main reason I wanted to know how it happened is to make sure it doesn’t happen again. Because of this I need to replace at least one rod, all rod bearings and probably the main bearings as well....

[Knoopa]

That does make sense, I have an oil pressure sensor in a sandwich plate between the block and filter and oil pressure was good there but it might have been different between the shaft and bearings of...

[Knoopa]

Yeah I just got a bare block so it didn't come with a shaft unfortunately. As both the shaft and bearings are ruined they will both need to be replaced anyway so that would solve that. However it seems...

[Knoopa]

The shaft itself was taken from my B20 block, so it was not new but was still in very good shape. The bearings were not replaced but seemed in good condition as well, from what I've read those can't be...

[Knoopa]

Yes the retainer groove was chewed up, it wasn’t like that when I built the engine. The block got cleaned by the machine shop so I assume they hot tanked it. It does fit pretty tight but I can slide...

[Knoopa]

I have built a stroker engine but after putting it in the car and just driving a few kilometers it started to develop a loud knocking sound. After tearing the engine apart again I saw that the intermediate...