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Message: <blockquote data-quote="ks_dave" data-source="post: 137770" data-attributes="member: 25615">My old 843 has been like a right arm, but I've been fighting low fuel pressure longer than I want to admit.  It had gotten to the point where it would idle back to about "half-stick" within 30 seconds of starting.  I could pump the bulb (never really getting hard), and rev it, but just for a few seconds.  After replacing most everything between the tank and the pump, I FINALLY pulled the dipstick.  It's at about twice the oil level that it should be.  Sounds simple now, but I just couldn't see it before.  I finally asked myself why if I could pump like that with the engine shut off, I couldn't actually see any leaks.   Anyway, reality is hitting hard.  She's an old girl, never failed when I needed her.  No telling how hard she'd been worked before I got her.  But now…well, I have to something, but what? I'm a fair shade tree mechanic, but this one is outside of about any of my experience.  I see replacement zexel pumps all over, most probably Chinese, anywhere from few hundred dollars to over a thousand.  Which to buy, or is a rebuild a better option, and if so what should I expect to spend?  And the  way I read the manual, it takes special tools (and probably skills) to replace it.  Can it even be done without pulling the engine? Figured I really should ask people who know rather than trying to figure it out in the middle of the night.   I'd appreciate it if someone who has done this can set me straight.   </blockquote>

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