Mechanical Services

  • Complete diesel engine service including major overhaul
  • Re-powers
  • Engine Surveys
  • Stabilizer service and new install
  • Wesmar electronic stabilizer upgrades
  • Bow and Stern Thruster service, new installs and upgrades
  • Generator installation and service
  • Propellers, shafts, and running gear
  • Welding
  • Hydraulic repairs and service. 
  • All hose assemblies are made on premise

Projects
Mechanical

  • one of two powerful 3phase ventilation motors
    one of two powerful 3phase ventilation motors
  • Engine Room distribution
    Engine Room distribution
  • Auto or manual closing vents
    Auto or manual closing vents
  • 105' Fedship
    105' Fedship
This beautiful older Fedship required the engine room ventilation system to be replaced. It was also required to improve the original system significantly, with improved flow and an automatic closing feature for fire supression. This new system...
  • Wesmar Fiberglass/ hydraulic Stern Thruster install
    Wesmar Fiberglass/ hydraulic Stern Thruster install
  • Wesmar Fiberglass/ hydraulic Stern Thruster install
    Wesmar Fiberglass/ hydraulic Stern Thruster install
  • Wesmar Fiberglass/ hydraulic Stern Thruster install
    Wesmar Fiberglass/ hydraulic Stern Thruster install
  • Wesmar Fiberglass/ hydraulic Stern Thruster install
    Wesmar Fiberglass/ hydraulic Stern Thruster install
The owner of this beautiful 86' San Lorenzo wanted to add a Wesmar Stern thruster
  • Fabricated aluminum motor mount
    Fabricated aluminum motor mount
  • Welded mount to custom rolled 12" tube
    Welded mount to custom rolled 12" tube
  • Motor installed and tested prior to final installation
    Motor installed and tested prior to final installation
Wesmar Electric 12" dual prop Bow Thruster install on this 66' Burger
  • Building Aluminum plate stabilizer support
    Building Aluminum plate stabilizer support
  • Stabilizer base plate installed
    Stabilizer base plate installed
  • Stabilizer, dual piston, aluminum hull
    Stabilizer, dual piston, aluminum hull
This 99' Weis was extended to 129' vessel. Gillen Diesel installed 16 sq ft DSP 4803 Wesmar at anchor stabilization fin in this aluminum hulled yacht.
  • 3208 CAT overhaul-port engine
    3208 CAT overhaul-port engine
  • 3208 Cat overhaul-stbd engine
    3208 Cat overhaul-stbd engine
  • 3208 CAT overhaul-port engine
    3208 CAT overhaul-port engine
  • 3208 CAT overhaul-port engine
    3208 CAT overhaul-port engine
Both these engines were severely damaged when salt water flow was stopped due to debris. Engines were removed from the vessel, then completely overhauled in our shop. They were then painted, all new electrical harness made, a new dual alarm system...
  • 21KW Phasor Generator install
    21KW Phasor Generator install
  • 1 of 2 21kw Generators installed
    1 of 2 21kw Generators installed
  • Equipment needed to be relocated prior to actuator install
    Equipment needed to be relocated prior to actuator install
  • Grinding area for mounting block - note vacuum line to outside boat
    Grinding area for mounting block - note vacuum line to outside boat
  • Laminated block in place
    Laminated block in place
  • Actuator installed
    Actuator installed
This vessel was not equipped with stabilizers and was desired by owner. Proper location for fin required the relocation of much of the equipment in the engine room. In addition the 9' Wesmar stabilizer fin needed to be modified to clear the...
  • Installing 700 gpd HRO Safari Modular Water maker
    Installing 700 gpd HRO Safari Modular Water maker
  • Boost pump, hi pressure pump, pre-filters for water maker
    Boost pump, hi pressure pump, pre-filters for water maker
This 1964 Burger had the old style crawl in engine room space where space and access was a premium. This boat was part of a major post purchase refit performed by Gillen Diesel. The Burger never had a water maker on-board. First, we removed...
  • Interior covered with door skin for protection
    Interior covered with door skin for protection
  • Prior to Piston removal
    Prior to Piston removal
  • Failed antisiphon valve
    Failed antisiphon valve
  • Replaced cooling system antisiphon valve
    Replaced cooling system antisiphon valve
This 1993 90' Swans' Volvo engine was originally overhauled during a 1997 refit period at Gillen Diesel and Marine. After 3 circumnavigations, 6700 hours as well as ingesting water it was decided to overhaul the motor onsite in San Diego CA.
  • Field overhaul of4045 50KW John Deere Generator
    Field overhaul of4045 50KW John Deere Generator
  • Considerable wear and aging of all components
    Considerable wear and aging of all components
  • Genset prior to test run and finish paint
    Genset prior to test run and finish paint
  • Looking forward from generator area
    Looking forward from generator area
Originally we installed this John Deere 4045 AFM generator new during this Gillen Diesel 1997 major refit of this 1993 90 'Swan. After 3 circumnavigations and over 15,000 hours we were called to overhaul the generator and main engine in San Diego...
  • Faulty hydraulic pump on transmission
    Faulty hydraulic pump on transmission
  • Engine room
    Engine room
  • Condition of injectors
    Condition of injectors
  • Adjusting valves
    Adjusting valves
Customer was coming in for overdue routine engine service and also complained of low gear oil pressure in one of the transmissions. 3000 hour service was performed on the 16V2000 DDC/MTU engines and 100 KW John Deere gensets. Starboard...
  • Failed Thruster
    Failed Thruster
  • Rebuilding Gear Box
    Rebuilding Gear Box
  • Rebuilding Wesmar Dual Gear Box
    Rebuilding Wesmar Dual Gear Box
  • Overhauled unit reinstalled on vessel
    Overhauled unit reinstalled on vessel
The 12' single prop Wesmar bow thruster unit had locked up and upon dissambly found oil was badly burnt and upper seal leaking. This unit had never been serviced since newly installed 15 years ago. New bearings and seals were installed,...
  • 17.5 KW Phasor Generator upgrade
    17.5 KW Phasor Generator upgrade
The original 9.5 KW Onan was far to small to operate the watermaker, eskimo ice chipper and existing electrical load. The new 17.5 Phasor Generator with sound shield replaced the original Onan. Gillen Diesel is very skilled at fabricating the...
  • New HRO watermaker control
    New HRO watermaker control
Installed the HRO Safari 1400 GPD modular watermaker unit with commercial pre-filters. Byuitlizing a modular unit this provided the ability to install a large capacity watermaker in a small vessel which is what the owner required.
  • Prepping for Sand blasting
    Prepping for Sand blasting
  • Sand blasted, overhauled cylinder now ready for painting
    Sand blasted, overhauled cylinder now ready for painting
  • Original rotational bearings
    Original rotational bearings
  • Boom cylinder ready for paint
    Boom cylinder ready for paint
A Nautical Structures 2500lb Davit was completely stripped down to bare metal and components. The metal parts were then sand blasted, primed and finished with DuPont product paints. The electrical components were completely rewired as well as a...

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