GAZ-21A (GAZ-21, GAZ-22) - 1957-1970 years.
• crankshaft and camshaft GAZ-21 - indigenous liners and sleeves of different lengths, bearings, aluminum lid, gasket. Early engines had a rear neck crank wider than the other
• compression 6.6/6.73 (70/72 at petrol). Export options with a compression ratio of 7.15-7.3 and 7.4-7.65 (according to different sources) under the A-76 and A-80 (not AI-80!)
• combustion chamber flat-
• Paper nepolnopotochny oil filter
• drive ignition distributer "screwdriver"
• Pump on the head
• inlet valve 44, Issue 36 mm
• collector with rectangular channels and bends at right angles
• stalebabbitovye liners
• carburetor, single chamber (K-22, K-105, TO-124)
• Cylinder Head pins 11 mm
• Power 70-72 hp, then (after the increase of the compression and replacement camshaft) - 75 hp Export options under the A-76 and A-80 - 80 and 85 hp respectively (GAZ-21AE)
• under sleeves, rubber ring
• Weight 12.5 kg flywheel
UMP-451
• crankshaft and camshaft GAZ-21, gasket, main bearing caps, aluminum, rear cover is molded together with the body rear flange
• camshaft ZMZ-21
• the main difference between (externally UMP-451 one to one GAZ-21A, this issue only): full flow ("Zhiguli") oil filter. He kept right in front of the engine exactly horizontal to the special aluminum parts, called "guitar". This scheme had the feature of lubrication - for oil cooler oil went past the filter
• Pump on the head
• inlet valve 44 Issue 36mm
• single chamber carburettor (K-129)
UMZ-451M
• Crankshaft and camshaft in it needed from 24 Volga, ie all indigenous liners completely identical
UMP-451MI
For military UAZov. What is the difference - is unknown. UMP-451MIE - with shielded ignition system.
UMP-414 (UAZ-469)
• crankshaft and camshaft GAZ-24, the packing, presumably iron covers indigenous and separate from the latter covers bearings holder padding (allows you to change all the root bushings without removing the crankshaft and not touching the stuffing
• camshaft ZMZ-24
• compression 6.7
• combustion chamber piriform
• Zhigulevsky filter
• changed and lubrication chart - now the oil in oil cooler also comes through the filter directly from the canal lubrication bearings.
• Pump on the head
• inlet valve 44 Issue 36 mm
• Collector channels of circular cross section and smooth curves
• carburetor, single chamber (K-129В, K-131)
• air filter of the inertial-oil
• block with ribs
UMP-417 (UAZ-3151)
• crankshaft GAZ-24, gasket
• compression 7.0
• camshaft UMP-417 iron
• Zhigulevsky filter is mounted directly on the block without a "guitar" with a slight slope upward
• Pump on the head
• inlet valve 47, Number 36 mm
• a two-chamber manifold carburetor
• Dry air filter paper
continuation
http://forum.gaz21.org.ua/index.php?showtopic=72 There are many differences that?