{"id":353,"date":"2021-03-09T12:44:23","date_gmt":"2021-03-09T12:44:23","guid":{"rendered":"https:\/\/pivot.jybe.fr\/?p=353"},"modified":"2021-06-10T08:24:30","modified_gmt":"2021-06-10T08:24:30","slug":"remise-en-etat-de-larbre-moteur","status":"publish","type":"post","link":"https:\/\/jybe.fr\/en\/remise-en-etat-de-larbre-moteur\/","title":{"rendered":"Remise en \u00e9tat de l’arbre moteur"},"content":{"rendered":"

Confronted with a very important rolling noise on the shaft line of the engine during the conveyance of Noddi from the port of Les Lecques to Leucate, we know well that a look on this side is necessary.<\/p><\/blockquote>\n\n\n\n

What a surprise when we first poked our heads through the access hatch into the rear chamber, which gave us a bird's eye view of the rear of the engine! All parts are very oxidized<\/strong>, there is grease everywhere, the shaft is very hard to turn<\/strong>... We have work to do.<\/p>\n\n\n\n

The first step is to uncouple the shuttle shaft<\/strong>. 8 bolts to unscrew, nothing too bad. The homokinetic joint which allows to catch up the misalignment between the shaft and the motor has a free side. We release the other in the same way and we take out this part weighing nearly 20 kg <\/strong>from the bottom of the engine hold. <\/p>\n\n\n\n

Small detail, and not the least, the engine is placed above the hollow keel shaft at this point.<\/strong> This means that any object sliding under the engine or shaft ends up 1.5m below in a pool of oil, gasoline and dirt. A real pleasure.<\/strong> To simplify access, we also cut out some CP partitions separating the engine boxes. <\/p>\n\n\n\n

The part we identify as being in the worst condition is a bearing bolted to a metal plate, itself resinated to the hull, and holding the motor shaft downstream of the stuffing box. This bearing has a lot of play and makes noise. Its removal is complicated by the impossibility to unscrew the bolts holding it to the metal plate. So once again we use the crude method: discer.<\/strong> But this one is really complicated. I have to cut two 12mm diameter bolts at arm's length, lying down, without seeing anything, above a pool of hydrocarbons, without dropping the part. To be on the safe side, I put a soaked cloth around the work area to limit the spread of sparks and I put a fire extinguisher nearby.<\/p>\n\n\n\n

Finally everything is going well<\/strong> and I can breathe.\u00a0<\/p>\n\n\n\n

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