Прикупил себе wj :-)

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Сообщение от disshaman

Откуда такая инфоормация? Вроде же решили на это форуме, что поршневая сменилась в середине 90-х специалистами Даймлер и болше не подвергалась изменениям. Можно ссылку на достоверный источник?

то, что на форуме решили, это конечно прекрасно. Но вот что о двигателе говорится в википедии (тоже не ахти источник конечно, но и не форум)

Small changes were made to the cylinder head for the 1995 model year. In 1996, the engine block was redesigned for greater strength. The new block had more webbing and a stud girdle for added rigidity of the crankshaft main bearings. Engines installed in 1999 Grand Cherokees carried the PowerTech name, which had been used intermittently in prior years and on other Chrysler truck and SUV engines. The name was subsequently passed on to 4.0s in the other Jeep models that used the engine, the Cherokee and Wrangler. The cylinder head was again changed for the 2000 model year to a lower flowing, more emissions-friendly design. This head was designated as "0331" in the casting number. These heads are prone to cracking and causing coolant to contaminate the oil, resulting in catastrophic engine failure. Also new for the 2000 model year, was the distributorless, coil on plug ignition system