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Farm Machinery
Classic Machinery
McCormick IH 434 starting problem
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<blockquote data-quote="Andy Nash" data-source="post: 7277658" data-attributes="member: 81262"><p>It is a CAV rotary pump isn’t it?</p><p>what about the top bleed screw in the pump - have you bled that?</p><p>You need to crank the engine with the screw open to do that.</p><p>There should be lots of white smoke when it’s bled properly, not just a bit.</p><p>The timing marks on the gears don’t align themselves every revolution on these.</p><p>You can check whether you’re 180 degrees out by removing an injector or the valve cover.</p></blockquote><p></p>
[QUOTE="Andy Nash, post: 7277658, member: 81262"] It is a CAV rotary pump isn’t it? what about the top bleed screw in the pump - have you bled that? You need to crank the engine with the screw open to do that. There should be lots of white smoke when it’s bled properly, not just a bit. The timing marks on the gears don’t align themselves every revolution on these. You can check whether you’re 180 degrees out by removing an injector or the valve cover. [/QUOTE]
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McCormick IH 434 starting problem
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