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Injection Limiter adjustment
On 2008-03-20 23:55:17 -0400, Bruce in Bangkok said:
First, yes, fiddling with the governor can cause the engine to explode. The seals were put on the governor for a reason. It is doubtful that the factory adjusted the governor incorrectly.. I suggest that you first adjust the idle speed to about 900-1000 RPM in neutral and check that the high speed RPM is 3600 RPM in neutral. Once you get these settings made does the engine seem to run normally? If so, try the same settings with the transmission in forward. Your idle speed should be essentially the same but high RPM may be a few hundred RPM lower. If you can't reach full RPM and you have black smoke coming out the exhaust then your prop is too big. If you can't reach full RPM and no black smoke then you may have clogged filters - change them all and try again. If this doesn't cure your problem then frankly (and not to make fun of you) from your questions I would suggest that you would be advised to get a proper mechanic to have a look at things. Bruce-in-Bangkok (correct email address for reply) I usually agree with you, and mostly agree with what I see as your intentions, but you got some things wrong in my hardly ever humble opinion.... The factory could well have screwed things up. Their employees have little if no investment, though my observation has been that they usually do at least a decent job. Minimum idle speed on our 2GM20F is set to a bit under 600. We were warned to long-term idle/charge at about 1200, so that amounts to our usual idle. With a properly pitched prop, there is no way we can pull full RPMs at the dock in forward or reverse. We blow incredible black billows of smoke trying. When we open the throttle to full while freely moving, we push past hull speed, show the max RPMs we pitched for and blow a bit of black smoke. That IMHO is about the way is should be. -- Jere Lull Tanzer 28 #4 out of Tolchester, MD Xan's pages: http://web.mac.com/jerelull/iWeb/Xan/ Our BVI trips & tips: http://homepage.mac.com/jerelull/BVI/ |
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