‘Understandably, after sitting for 62 years the engine was indeed stuck. Using a Boroscope, it was discovered that the cylinders were still shining. They were then assiduously sprayed with penetrating oil. The oilpan was removed, all the connecting rods were loosened, and each rod given a gentle nudge. All six pistons moved easily up into their bores, as none of them had rusted solid. At first, the crankshaft would still not break free. However, with diligent work, it started to move freely and it was then that the connecting rods were re-tightened. Before progressing any further, all 153 individual valve train parts were removed and meticulously cleaned, lubricated and re-installed. After the oil-pan had been cleaned and re-installed, with fresh oil added, the engine was then spun with its own starter, producing 20 pounds of oil pressure while cranking and 60-80 psi of compression in each cylinder. The decision initially was made to not start it but indications are, it most likely will start with little effort.
2 replies on “Car Tales: A pre-WW2 1939 Delahaye 135M Cabriolet!”
You should contact Jay Leno with this one. He would be the one to do it justice and preserve it properly. Thnx for sharing the history!
Thanks Jack!