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Farm Machinery
Classic Machinery
CAV problems.
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<blockquote data-quote="Ioan annwyl" data-source="post: 5350772" data-attributes="member: 55540"><p>You said on another thread (jd engine) that you have replaced injector with an used one from another engine, did you replace the rubber seals on the return T pieces all 3.</p><p> Not easy to change injector without disturbing adjacent T piece. Seals will leak and causing external leaks or an air leak allowing fuel to drain back, check thermostart reservoir, has the plastic or rubber pipe perished, also check steel pipe from filter housing around rear of engine where the steel clamp holds the pipe below the exhaust manifold, remove clamp and check pipe it will be worn, had dozens do this, seen them with cracks that won't leak diesel even when running, but will draw air when left overnight. </p><p>Fitting a non return valve only cures the symptom not the cause.</p><p> I assume it's 900 or 1000 series combine. Let us know how you get on.</p></blockquote><p></p>
[QUOTE="Ioan annwyl, post: 5350772, member: 55540"] You said on another thread (jd engine) that you have replaced injector with an used one from another engine, did you replace the rubber seals on the return T pieces all 3. Not easy to change injector without disturbing adjacent T piece. Seals will leak and causing external leaks or an air leak allowing fuel to drain back, check thermostart reservoir, has the plastic or rubber pipe perished, also check steel pipe from filter housing around rear of engine where the steel clamp holds the pipe below the exhaust manifold, remove clamp and check pipe it will be worn, had dozens do this, seen them with cracks that won't leak diesel even when running, but will draw air when left overnight. Fitting a non return valve only cures the symptom not the cause. I assume it's 900 or 1000 series combine. Let us know how you get on. [/QUOTE]
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CAV problems.
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