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Turbo-Hydramatic 425 (TH425 or THM 425, [1] later 325) was an automatic transmission developed and produced by General Motors. The THM425 was a derivative of the THM400; most parts directly interchange and some others will interchange with minor modifications. The internal parts spin the opposite direction in the THM425; the helical angle of ...
First, the head bolts simply weren't numerous or strong enough for the diesel's high compression ratio, so they started blowing head gaskets. Second big problem: GM's cost-cutters decided not to fit a water separator. Unlike gasoline, diesel fuel is subject to water condensation – hence the need for a water separator.
The intake manifold, reverse-rotation turbocharger, jet oil coolers, oil pump, manual transmission, pcm tuning, intercooler size, and weight are the only differences between those cars. The SRT-4 has a cast-aluminum 8-row Valeo intercooler mounted in the front, and the reverse-rotation Mitsubishi TD04LR-16Gk turbocharger has a 6 cm 2 (1 sq in ...
Axi-symmetric stall, more commonly known as compressor surge; or pressure surge, is a complete breakdown in compression resulting in a reversal of flow and the violent expulsion of previously compressed air out through the engine intake, due to the compressor's inability to continue working against the already-compressed air behind it.
Nissan revised the piston design to accommodate the forced induction by adding extended oil squirters and oil cooling the pistons. Crankshafts were also updated to suit turbo engines. The fuel pumps were upgraded to an 11mm plunger style on these models to handle the increase of fuel supply needed for the turbo application.
An exploded-view drawing is a diagram, picture, schematic or technical drawing of an object, that shows the relationship or order of assembly of various parts. [ 1 ] It shows the components of an object slightly separated by distance, or suspended in surrounding space in the case of a three- dimensional exploded diagram.
Gaskets and shaft seals were intended to limit the leakage of oil, but they were usually not expected to entirely prevent it. The blow-by gases would diffuse through the oil and then leak through the seals and gaskets into the atmosphere, causing air pollution and odors. The first refinement in crankcase ventilation was the road draught tube.
Among the goals for the new engine were increased horsepower, and elimination of some of the problems encountered with the original design, such as head-gasket failures and oil leaks. [31] Winchell first built an engine with displacement increased to 176 cu in (2.9 L), but this only made the existing head-gasket problems worse.