Project Brupeg · βίντεο

Τι καλύπτει αυτό το βίντεο

Damien aboard the converted fishing trawler Brupeg diagnoses a propeller shaft misalignment at the Navy wharf in Bundaberg that caused a visible wobble in the rotating shaft assembly.0:04 The drivetrain uses an imperial-to-metric steel adapter between the propeller shaft coupling and the gearbox coupling, and the shaft had been aligned to within 0.25 mm before chock fast was poured — yet wobble persisted after final assembly.0:47

Three theories are investigated: a machining fault in the adapter's spigots, lateral engine movement, or an unknown cause.1:27 Using a dial gauge, Damien measures 0.27–0.28 mm of runout at the adapter spigot and confirms the two spigot centers are offset — meaning no amount of external alignment could correct the wobble once the flanges were bolted together.9:22 The spigots, not the bolts, perform all shaft-to-shaft alignment; the bolts only clamp.14:59

A machinist repairs the adapter for $560, roughly half the expected cost.15:16 The original high-tensile coupling bolts are replaced after TIG welding destroyed their heat treatment, and new 1-inch UNF and M20 fine-thread bolts are ground to length and chamfered.15:28 Post-repair dial gauge checks show residual 0.3 mm movement, attributed partly to slop in the stern tube's grease-packed flex bearing rather than the adapter.24:03

Machining error in an imperial-to-metric shaft adapter can mask perfect external alignment and must be verified with a dial gauge before chock fast is poured.

Περισσότερα από το Project Brupeg

What caused the steering to fail - Project Brupeg Ep.463Οκτ 2026CHAOS! & our first Night Time Trailer Haul Out - Project Brupeg Ep.462Σεπ 2026Look, It's possible we should have cleaned this before now... Project Brupeg Ep.461Σεπ 2026The Ridiculously Powerful Davit Winch - Project Brupeg Ep.460Σεπ 2026

Από Project Brupeg — δείτε το σκάφος του καναλιού, το πλήρωμα και κάθε αναλυμένο βίντεο.

The Sailing Directory Newsletter

Ένα email με τις καλύτερες ανακαλύψεις του στόλου — τις στιγμές, τα σκάφη και τις ιστορίες που αξίζουν τον χρόνο παρακολούθησής σας. Εισάγετε τη διεύθυνσή σας για να λάβετε το δικό σας αντίγραφο.