engine

Recently I was looking for a repair tool for my boat and found a tool can directly modify the engine run hours. It all seems so easy in the video. I am a little concerned. Is there a way to check to see if the engine running hours has ever been modified?

Hello! I'm looking at a 1990 35' powerboat to replace my old boat. It has two big thirsty 220hp diesel engines, one of which isn't running. My question is: would it be possible to remove these engines and install two smaller inboards of ~100hp? My reasoning is that I never really push my...

Hello, recently I bought a boat with two engines fiat aifo cp3-s.m. Their engines are undergoing major repairs, but I can't find any information about them. At the moment I am interested in what is the clearance for adjusting the valves and how many kilograms the head is tightened. Any other...

Hey you all, Wondering what would be the way to go... A friend got an OLD pre 1980 4.2L mercruiser he bought for his boat. I am helping him to install it. the previous owner had it rebuilt and put it away to use later. However the guy never continued his poject. To be sure the engine would not...

Hi, I know that an Air Compressor is used for starting Marine Engine. However, is it required for all types of diesel Marine Engine? Is it mandatory? How to choose the specification (capacity) of an air compressor required for a vessel? Thank you.

Hi, What are the advantages and disadvantages of using High RPM Engine over Low RPM Engine? Let's say for a passenger cruise vessel, I need propeller RPM 800, and Engine RPM is 2400, so I am using Gear box with 3:1 Now if I use an Engine of same power with 1200 RPM with Gear box with 1.5:1...

Hi there, what is dual fuel engine and its benefits.

Greetings all. I’m looking for ideas on quieting down the air cooled engine that powers my paddle boat. It is air cooled so this will be a challenge if possible at all. Any input or ideas welcome!

Hi, I have a query about ECR (Engine Control Room). Is it mandatory for a vessel? In a vessel I have an Engine Room and a Generator Room. The machinery will be controlled remotely from the Wheel House. Do I still need a separate control room? I would like to exclude the control room since two...

I am interested in boat building and I realize a keel is an important part if not the most important part and I'm wondering how large my keel should be on a 6 m long old wood boat. I was thinking of making the keel 12 x 8 and frames 6 x 6 but then I realized it's too large for a 6 m long boat...

Hi, We would like to install a box cooler on our ship. However, I was thinking about a few practical issues. The inlet slots at the bottom and outlet slots at the side shell might get clogged by snails, polythene, checksheet, small fishes. So, I am worried that the natural water circulation...

Hello guys,i think this is the right place to post my question,how can i predict my engine power,based on the bollard pull?My tractor tug needs to develop 50 TBP and i have 2 azimuth propellers with D=2.1m,n=273 rot/m,T=263 KN.

Hey guys, I currently own a 30 something ft cat but looking at going bigger. I don't want to mention names but I was in comms with a company for a 53ft power cat and they sent me some performance figures which I must admit, made me scratch my head a little bit. Apparently this cat with two...

Hi All, Can anyone advise how to do the powering calculation of a pusher tug. Pusher tug pushes -4 barges,each of 350 T capacity. Regards Adarsh

Hello, searching the forum I was not able to find any info on what I need and decided to open this new thread to ask for help. My old Fiat Aifo 806 diesel engine is 14.000 hours old now and need to go through its first overhaul. Trouble is I have not been able to find parts even after having...

What would be the average energy consumption, range and running hours with different speeds (slow, cruising and max)? What would be a right size diesel generator for backup/hybrid system? How much regeneration could folding propellers produce? How much solar would need to be installed to run all...

Hi, I have to design engine room ventilation system.The machineries are as follows, 1. 300kW diesel engine 2. 30kw diesel generator Kindly tel me how to do the calculation for this.

Tourist Boats, Chao Phraya, Bangkok, Thailand 2010

new engine 85hp Mermaid (JCB) with a very high riser.

Fast offshore interceptor/endurance racer/long distance cruiser. RIB tube around the hull adds aerodynamic lift and stability as well as providing efficient fendering and protection. Very efficient deep V planning hull with 2.5 steps and planning pads. Safety cockpit for 4 crew. Option of...