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Masseynut(Australia) 01-08-2013 02:55:04 101.162.154.2 Report to Moderator	Brad, I'd get an external oil pressure test gauge onto your engine before you run it any more. Unscrew the oil pressure sender unit from the engine block and fit the test gauge to the block. That "hard knock" could just be a faulty injector on one cylinder, but just to make sure the bottom end of the engine is not the source of the "knock", check that oil pressure. Chances could be that the oil pressure light on the dash is not working. It should light up when the key is turned to the "on" position, along with the alternator and transmission oil pressure light. let us know what the outcome is from here, Evan. [Reply]   [No Email]
Brad in Lonoke 01-08-2013 21:28:54 99.195.237.167 Report to Moderator	Re: MF 360 Starter Wires in reply to Masseynut(Australia), 01-08-2013 02:55:04   Checked oil pressure with external guage, reads around 50 psi. Loosened each fuel line at injectors, listened for degraded performance, tightened, all injectors seemed to be operating correctly. http://www.youtube.com/watch?v=aK6heMbEiMs http://www.youtube.com/watch?v=SYLc71q9yhw [Reply]  [No Email]
Masseynut(Australia) 01-09-2013 03:28:39 101.162.154.2 Report to Moderator	Re: MF 360 Starter Wires in reply to Brad in Lonoke, 01-08-2013 21:28:54   The fact that the oil pressure is up there very good news. This eliminates the bottom end as the source of the knock. When you rev the engine, is it blowing any smoke from the exhaust? What colour is the smoke? Does the knock tend to even out at higher revs? Short of carrying out a compression test on each cylinder, I'd remove the muffler and air intake hose at the manifold, and crank the engine with the stopper out. If you hear any sign of air leakage, (slurping) to a certain degree when turning the engine over, I'd suspect either a badly seating exhaust or inlet valve, or more likely a blown head gasket. The latter is most likely. As I said, a compression test will soon confirm this. Let us know your progress, Evan. [Reply]  [No Email]
Brad in Lonoke 01-10-2013 16:48:16 99.195.221.221 Report to Moderator	Re: MF 360 Starter Wires in reply to Masseynut(Australia), 01-09-2013 03:28:39   Smokes initially, white, knocks at low idle and upper rpms. http://www.youtube.com/watch?v=dB44xrjiWEw "...crank engine with stopper out."? This is likely the problem. [Reply]  [No Email]