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Re: 1967-1972 International 444 with theBD154 Dies
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Posted by jdemaris on April 24, 2005 at 07:13:22 from (209.23.29.219):
In Reply to: 1967-1972 International 444 with theBD154 Diesel e posted by Keith Young on April 24, 2005 at 06:28:57:
Never experienced such a problem and I've worked on, and own, several IH tractors with the BD-144 and the BD-154 engines. They are all adjusted .020" hot for both intake and exhausts. So, I'm not sure what your problem is - but what makes you think it's the valve lash? You say the engine was rebuilt - well, to what extent? Is your valve timing correct, and fuel timing? And, you've checked all the injectors and the injection pump? The reality is, as long as there is some sort of valve clearance when it reaches operating temperature, it will run pretty good. To get technical, as long as any clearance exists, the valves will open and close sucessfully. The actual clearance, however, determines - to a degree - the exact valve timing. The reality is, being off a few thousanths one way or the other will not be noticeable. Sometimes, when attempting to tune an engine to get every bit of power possible, a feeler gauge is not used, and valve lash is adjusted by a degree wheel and dial-indicator. I can't imagine this being applied to a farm tractor though.
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