Engr. Shafiul Bari
Marine Engineering Expert
Shafiul Bari is a seasoned Marine Engineer with extensive experience in ship design, maintenance, and marine propulsion systems. With a deep technical knowledge of ship engineering and a passion for advancing maritime technology, Shafiul shares practical insights and expert advice to help marine professionals and enthusiasts better understand the complexities of ship systems. Through his website, he aims to bridge the gap between technical theory and real-world application, fostering a community of informed and skilled maritime engineers. When not immersed in ship engines and technical manuals, Shafiul enjoys exploring the latest innovations in marine technology and mentoring aspiring marine engineers.
Articles by Engr. Shafiul Bari
BEARING:
Bearing Clearance Check: .bearing clearance .bc check Before undertaking any work on the engine, the safety check should be carried out: Tool box meeting should be carried out, only the person in charge of operation is to operate the turning … Continue reading →
Testing holding down bolt
The classification societies requirement is that holding down bolts be checked by a surveyor, within each survey circle. this interval of time may be too long and the bolts should preferably be checked at six monthly intervals, unless there is … Continue reading →
factors that cause slackening of holding down bolts/ Faults of holding down bolt:
Actions to be Taken for Slack Holding Down Bolts When the chocks and their mating surfaces on the bed plate and tank top have fretted, the chocks cannot properly support the engine. If the holding down bolts are tightened, the … Continue reading →
Removal of broken tie bolts
.removal broken tie rod .btr .broken tie Safety precaution: Procedure Holding down bolt .holding down bolt .hdb
Effect of operating an engine with loose tie bolts:
.lose tie rod .ltr .ltb The tie bolts are located close to the centre line of the engine
Checking the pre-tensioning of tie bolt:
.tie rod tightness .tierod tightness .tiebolt tightness .tie bolt tightening Tie bolt is tightened using hydraulic jack and bolts.
Correct method of fitting new tie bolts and pre-tensioning
.trt .tie bolt tightening .tbt Initial preparation: Preliminarily work: Working sequences for tensioning:
Performance of the engine:
Measure the Peak Pressure by Mechanical Peak Pressure Gauge: This method is normally applied in 4 stroke generator engines where a peak pressure gauge is used for individual cylinder and pressure generated during combustion is noted. With the same gauge, … Continue reading →
Exhaust valve
.exh valve Material for exhaust valve: The valve housing is of cast iron and arranged for water cooling. The housing is provided with a bottom piece of steel. The spindle or valve stem is made of heat resistant steel with … Continue reading →