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Rocker arm oiling on Kawasaki fd 620d Gator 6x4
I just completed a rebuild on a Kawasaki fd620d engine from a Gator 6x4. Everything was up to spec, but when I spun the engine over I couldn't see any oil to the rocker arms, nor could I find an oil galley that would feed them. Unless I'm missing something, the only way I could see the rockers getting lubed was via oil mist coming up through the heads from the crankcase. Is that all there is or am I missing something?
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Rocker arm oiling on Kawasaki fd 620d Gator 6x4
I scoured the case and heads for any passage that might provide a path for pressurized oil, but the only possible path I could find was openings in the heads alongside the tappets that would allow incidental oiling, but nothing pressurized. If that's the way these engines were designed I really can't argue, since they are very reliable and when they do break it's something other than the valve train. It just seems to be an iffy proposition. I know I've got good oil pressure. I packed the pump with vaseline and spun it over with a test light hooked up to the oil pressure sensor. It pressurized almost immediately and in fact, held pressure for several seconds after stopping.
I did a complete rebuild on the engine (rings, bearings, seals, gaskets, valve lapping, cylinder hone, milled heads, etc.) and I think the parts cost less than $200. Beyond that I had a pro do the machining and basic assembly, so I'm probably into it for around $475 plus the cost of the core.
I do think the Harbor Freight option is very valid. However, the reality with anything John Deere is that anything non-stock tends to bring the value down...even if it's an improvement over stock. I recently dropped a V8 into a Porsche 914. Made the car much more fun to drive, but dropped the value by at least 50%. Go figure.
BTW, I'm building this engine on spec and it's currently for sale on local Craigslist until Wednesday, then it goes to ebay if anybody is interested.
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