Due to funding being used, Atalan Makine shipped our first Diesel prototype engine to an Iranian university for repair and further development and testing.
During testing of our first Diesel pre-production 1600cc, X4-D1 engine, it was discovered that the re-drive output shaft was machined 0.75mm (2.9 thou) out or round, this slight elliptical imperfection combined with stronger forces transferred during a diesel combustion (18.5:1) transferred forces on the bearings thus damaging the bearing and the oil pump as it is run of the front side of the re-drive shaft. Shims were made out of the steel material to take up this gap, but the massive forces produced by the combustion simply did the same thing again, thus restricting the engine to run for any length of time, testing was stopped so as not to damage the engine.
Note: You will see from the image that the Diesel fuel pump on this prototype was not modeled into the engine build. Atalan Makine reported that once they sorted out the initial difficulty with timing, when they ran the engine cold and without an exhaust very little smoke was produced, see the YouTube links below.
Atalan Makine has sourced the camshaft from Britain and assembly of the diesel engine is in progress. The process has been slow and tedious because they have been attempting to set appropriate tolerances for sensitive parts, and are modifying parts as the assembly continues.
This diesel prototype block was made out of steel and has been intentionally over specified to minimise the possibility of engine failure.
Atalan Makine have kindly provided us with a link to a video so that shareholders can view the current stage of assembly and preliminary testing of our bottom end mechanical device.
This is the final success run of this diesel engine: www.youtu.be/wwCcZpFePq0
Another good look at the rear of the engine whilst running. www.youtu.be/56JnsKISu68
This is the first test of the mechanical operation of the engine. www.youtu.be/j8RsjKK9w14
Mr Krishnamurthy the former Marketing Director of Ashok Leyland and a Director of Revetec Technologies India Private Limited together with fellow Director Mr Raja Murugan have recently instructed A.S. Subramanian to assess and where necessary improve the manufacturability and durability of our current X4 design, prior to either:
- Seeking a quotation as to the cost of producing and testing a Revetec based engine which would be benchmarked against an existing Indian production engine, or
- Providing us with a cost estimate for customisation drawings for certain engines within Ashok Leyland’s engine range.
We envisage that Mr Bradley Howell Smith would be enlisted to guide and assist Mr Subramanian with the above process.
Mr Subramanian is highly regarded as a Design and Production Engineer and has been responsible for designing many engines for Ashok Leyland, Tata and most recently Nissan.
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