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Farm Machinery
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Project Xerion.
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<blockquote data-quote="Vincent" data-source="post: 6287010" data-attributes="member: 12122"><p>The high pressure oil supplied by the heui pump acts on the fuel plunger part of the injector thus injecting the fuel at higher pressure than achieved by a standard cam and plunger type pump. The solenoid on the injector let's the high pressure oil in on top of the fuel plunger the timing and duration ( amount of oil ) is controlled by the ecm. There are two galleries in the head one above the other, oil over fuel. There is a fuel transfer pump mounted on the heui pump and a relief valve at the back of the head to maintain fuel pressure. Fuel pressure is very important to the engine - blocked filters will cause this.</p><p>Hope that explains it a bit.</p></blockquote><p></p>
[QUOTE="Vincent, post: 6287010, member: 12122"] The high pressure oil supplied by the heui pump acts on the fuel plunger part of the injector thus injecting the fuel at higher pressure than achieved by a standard cam and plunger type pump. The solenoid on the injector let's the high pressure oil in on top of the fuel plunger the timing and duration ( amount of oil ) is controlled by the ecm. There are two galleries in the head one above the other, oil over fuel. There is a fuel transfer pump mounted on the heui pump and a relief valve at the back of the head to maintain fuel pressure. Fuel pressure is very important to the engine - blocked filters will cause this. Hope that explains it a bit. [/QUOTE]
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