PROJECT – Askari
Click on the below images to enlarge.
Askari when brand new in all her glory.
One of the best boats going backwards ever built by the famous Barry Martin at Assegai Marine.
Inspection of the engines and estimate whats required to bring them back to life after close to 7000 hours in service.
Sea trial prior to repairs found steam present from 1750 rpm and up.
Prior to service the engine temp reached 90 degrees celsius at normal cruise speed 1800rpm and 145 LPH.
Prior to the major service we could only achieve 2100 rpm at full load and temp still climbing but backed off at 93 degrees celsius.
The crew removing the furniture and flooring for access for the engines to be removed.
Starboard side furniture and flooring removed for access.
The decks all covered and protected ready for the engine and Genset removal.
The crane arrives to the shed ready to remove the engines and Genset.
Crane in through the back door and ready for lift.
Setting the spreader bar to make sure we lift evenly with the transmission still connected.
Perfectly level and the extraction begins where every mm counts.
Rope all the way up into block and now for the finesse of pulling these big engines out the rear doors.
Engine 1 out through the centred back door made easy due to the design and specific measurements.
And we are clear of the boat.
Engine being stood on the shed floor ready for top end over haul and major service.
Both engines on the floor ready for dismantling.
Starboard engine outboard side showing signs of the 7000 hours and exposure to the harsh environment in where it lives.
Genset removal a walk in the park with engines already out.
Engine be dismantled for the top end overhaul with heads being replaced.
Removing the after-cooler and other parts for access to remove cylinder head.
Draining of the remaining fluids and starting the dismantle process.
Heads off, sumps down and transmission off to check the drive coupling between engine and transmission.
Main and big end bearings still like new.
Mains and big end bearings tensioned after checking and refitting.
New head gasket installed after all pistons and liners inspected and found in perfect condition and ready for another 7000 hours.
New cylinder head being lowered onto the block.
New injectors to be fitted to the engines as part of the service.
Engines all made up ready for undercoating where required.
Engines back together all new parts undercoated and ready for a new coat of CAT Matterhorn White paint.
Port engine starting to look good again.
In the process of painting.
Engines with there fresh coat of CAT Matterhorn white and the port engine new after-cooler installed.
Finished product and ready to go into the boat.
Port engine on its way to the engine room.
Port engine carefully being manoeuvred through the back door.
Port engine in and ready to be reconnected to fuel, 24 volt and exhaust system.
New Genset on its way into the starboard side.
Getting closer to the water, out of the shed and just waiting for new transmission to put stb engine back into the boat.
Starboard engine with new Twin Disc MGX transmission edging toward the vessel ready to go back into action.
Starboard engine mm perfect through the back door.
Starboard engine in though the back door and ready to drop down onto the engine bearers.
Port engine back in place and looking like new again.
All back together back in there home and ready for sea trials.
And we are back in the pen after a quick shake down run. Final shaft alignment and sea trials in the morning.
Sea trial after major service temperature back to normal.
30.6 knts at 1900 rpm doing it easy.
1900 rpm at 30 knts and 140 LPH after major service and repairs.
After major service temp steady at 87 degrees down from the 93 degrees and fuel burn also reduced from 193LPH to 163 LPH when sea trialled prior to major service.
33.4 knts cruising at 2100 rpm. She topped out at just over 36 knts and 2340 rpm.
Full load rpm back above the rated 2300rpm and temperature steady at 90 degrees celsius.
Luke very happy to see the end of a major job and all going really well.
After sea trials and ready for the re-installation of the flooring and furniture.
Back up and running on the GBR doing what Capt Corey Hard, Rhys and Junior do best!