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- Detroit 8V-71 BMSN1496 Fully dismantle, clean and inspect the torque converter
Detroit 8V-71 BMSN1496 Fully dismantle, clean and inspect the torque converter
Read more on how we helped this client below and discover how we can help you too…
Background
We were sent a torque converter from an offshore platform’s Detroit 8V-71 engine due to an oil leak inside the bell housing.
The unit was fully dismantled with a full visual inspection carried out to determine if any damage had been sustained to the item.
Upon arrival at the workshop, the unit was placed on a transport stand for an initial inspection to be conducted prior to dismantling. Rust deposits were found to be contaminating the output shaft due to no inhibitor having been placed on the exposed surfaces. This had also caused pitting damage.
Solution
The torque converter was fully dismantled and all internal components were thoroughly inspected. The following faults were found during this process:
- Damage to the drive disc/plate (Figure 3). This may have occurred when the unit was disconnected from the engine
- The edge of the sealing o ring on the spigot plate was feathered
- The oil seal on the outer turbine housing was split and feathered
- Upon dismantling of the oil pump, internal damage to the oil seal was found. Some chips were also found on the casting (Figures 5 & 6). One of the chips was liquid metal bonded so as to rectify the issue. The other chip found has no detrimental effect on the pump
In order to lift the cover to expose the inner stator, special extended lifting eye studs were manufactured. No signs of wear or damage were found to the stator. The oil that had still remained within the unit was clean. All of the internal components were thoroughly cleaned and inspected. No other issues or faults were identified.
Outcome
Work carried out:
- Castings chemically cleaned in order to remove any dirt ingression and rust deposits
- The unit fully rebuilt using all genuine parts as per the standard overhaul procedure. The following items were replaced:
– Drive disc/plate
– The oil seals on the outer turbine housing and oil pump
– O Rings
– Bearings
PROUD TO BE SUPPORTING:
I am writing this letter of recommendation to you for the excellent services of your company, Bartech Propulsion, who we employed for a seal change on our vessel the Forth Jouster who was in drydock in Portchester in September 2021. I am confident about the services of Bartech Propulsion who I found to be reliable and thoroughly professional throughout the ships in dry dock. Bartech Propulsion went over and above the work scope provided to you and executed the work in a timely and competent manner. We look forward to working with Bartech Propulsion in the future for our vessel needs.
Robert Begley ~ Briggs Marine Contractors LTD.
Over the last 2 years I have engaged the services of Bartech Propulsion for 4 vessels that I have under my charge as Superintendent of Vessel Manager. The planet has ranged from Niigata propulsion packs (engine, gearbox, thruster pods) to Kongsberg and Schottel ASD and thrusters with steering gears and gearboxes also been maintained. Stefan and his team have consistently supplied great service and standards of work and knowledge across the varied range. With emphasis on workmanship and value for money not reducing standards and deadlines been maintained without question. I have no reservations for recommending their service on any propulsion gearing projects.
Jon Hawkins ~ Fletcher
Thank you for your detailed reports and we appreciate all your teams assistance for smooth overhaul. we look forward to working with you again in the future.
Priscilla Chacko ~ Eagle Offshore Co Pte. Ltd
