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Yep, first time I’ve seen it. Guess they save a few bucks on the bolts doing it like this..

Thank you for the reply! There's no compensation for rotation?;p Follow up question! How long is the engine going to last if only step 1-3 was performed? S65 4L V8 with 8300RPM redline.. Current owner didn't read the entire procedure when installing new conrod bearings.. Told him not to...

Hi! Attachment is from a procedure regarding conrod bolts, torque to yield type. My understanding of what's going on in this bolt tightening procedure: The bolts are stretched a bit more in each step. After completing step 7, the clamping force is greater than after completing step 3, and...

racookpe1978 I'm starting to think that something went wrong during the last nitrogen fill. I'll review the procedure and try again. Thank you for the replies!

racookpe1978 The vessel had not been opened since the last nitrogen fill. The room is not controlled during installation/removal of electronics. The vessel is purged through a purging port after the electronics have been installed. We did a 3x vacuum / nitrogen fill. The vacuum is held for about...

Thank you for the replies! Yes, the vessel was filled with nitrogen. I don't know if dry nitrogen was used. Is there a big difference? The nitrogen bottle used in the last purge almost ran out of gas. Could this affect the dew point you achieve? Considering the pressure in the nitrogen bottle...

Hi! I have a pressure vessel that contains electronics. Recently, I found that water had condensed inside the vessel, even though the vessel has had all the air vacuumed out of it, and been filled with nitrogen to about 1,5 bar. What is a good way to ensure that no condensation happens inside...

Thank you for the replies! I have changed the material to 316L. The outer surfaces will be coated yes, the internal ones will only be primed, to give some additional protection should the oilfilled enclosure become waterfilled enclosure=| The sealing surfaces will not be coated. I had to go...

Hi everyone! I have a cylindrical enclosure with lids and radial O-ring seals in both ends, which will be submerged in seawater. Ø approx 300mm. The enclosure is filled with dielectric oil, and it is pressure compensated(internal pressure and seawater ambient pressure is equalized) The cylinder...