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#1
posted to rec.boats.cruising
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"Tony Helton" wrote in message ... "Capt. JG" wrote in message ... "Ernie Harrod" wrote in message ... crap removed You are one sick puppy. Do you get a thrill out of stalking people? You clearly know nothing about boats or engines, but you know a heck of a lot about stalking. **** off. -- "j" ganz @@ www.sailnow.com Take your rudeness and vulgarity elsewhere! I find it really distasteful that you must subject everyone to your outbursts. I agree! Seems to me this gay chronic complainer and Usenet abuser has a dysfunctional personality. Sort of a cross between psycho and schizoid combined with paranoia, dementia and gender identification problems. His main contribution has been and always will be just more clutter and continued failed attempts to control - not to mention patently disingenuous attempts to appear normal and friendly to disguise his ingrained back-stabbing nature with loud cries that scream "Please accept me, nobody wants me in real life - I've failed at everything I ever tried to do, maybe I'll be accepted here! Maybe I can fool people since they can't see how I look and act like a weasel." The only ones to be fooled are fools! -- Gregory Hall |
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#2
posted to rec.boats.cruising
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"Ernie Harrod" wrote in message ... That test kit is known as a blotter type test. It measures the transverse absorption spectra of the fluid which depends on such things as viscosity, surface tension and ion affinity. It does not do a chemical analysis but is better than no analysis at all. You can make the kit yourself by simply using blotter paper and putting a drop of hot oil on it. You can get blotter paper at your local art supply store for much less than that kit. If fact, one sheet of blotter paper will allow you to do about 50-100 tests for less than $5. Why not just change the oil twice a season? It wouldn't cost as much as the test and you would be looking at relatively clean oil to inspect at the change. Synthetic oil is far superior to either the parafin or asphalt based conventional viscuous amolients. This advice is all spot on! Change the oil twice a year. Use 100% synthetic oil. Art blotter paper is what is used in the test, it is far cheaper. Three things to add: View the blotter under a microscope (not under your tongue). Take pH readings of the oil. Record the data and view trends. Millions of car and truck engines run trillions of miles with minimal maintenance. So let's go overboard on checking a boat engine that never goes more than a mile or two from shore. Don't forget that frequent magnafluxing of the block helps too. A class in engine repair may be more helpful for Jon. |
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#3
posted to rec.boats.cruising
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"Tony Helton" wrote in message ... . Don't forget that frequent magnafluxing of the block helps too. You strip your engine on a regular basis just so you can magnaflux the cylinder block??. |
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#4
posted to rec.boats.cruising
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"Edgar" wrote in message
... "Tony Helton" wrote in message ... . Don't forget that frequent magnafluxing of the block helps too. You strip your engine on a regular basis just so you can magnaflux the cylinder block??. Edgar, he's a troll. Just ignore him. The only thing he strips is his blow-up doll. -- "j" ganz @@ www.sailnow.com |
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#5
posted to rec.boats.cruising
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"Edgar" wrote in message ... "Tony Helton" wrote in message ... . Don't forget that frequent magnafluxing of the block helps too. You strip your engine on a regular basis just so you can magnaflux the cylinder block??. Edgar, Magnafluxing is an old technique used to detect cracks. The method uses magnetic fields to detect eddy currents and discontinuities in the flux path. Using modern equipment but the same principles, one can easily detect cracks with a flux gate magnetometer and no iron filings. Where ever there is a crack the surface magnetic field of the metal increases and there is an almost discontinuous gradient in the magnetic field. There are even paints sensitive to magnetic fields and these would show cracks also. However, the high temperature of the engine degrades the performance of magnetic materials. I do not strip my block to magnaflux it, it only gets magnafluxed during rebuild. There are many acoustical techniques that can detect engine wear and are used by industry. These methods were first developed by General Electric in the 1950s for tooling machines.A simple high fidelity, wide bandwidth acoustic recording of an engine operating will yield many details about the condition of the engine. A spectral analysis of the audio signal can indicate bearing wear, unbalances, mis-timing and the like. You can do this all with a microphone and a PC with spectrum analyzer software. Here are just a few examples: http://adsabs.harvard.edu/abs/1999ASAJ..106L...1M http://www.grandprix.com/ft/ft00345.html http://www.kirkup.info/papers/engnoise.htm http://www.atypon-link.com/BINT/doi/...i.2008.50.1.30 Great example with graphs: http://www.medav.de/fileadmin/redakt...ne_testing.pdf And applied to boats: http://mole.imm.dtu.dk/aewatt/pubs.php The advantage of the acoustical method over the oil analysis method is that the acoustical method can be done all the time and catch problems way before they turn into ground up metal. The method can also detect problems that may never turn into ground up metal. Think of it this way: how effective is a urine test in finding a broken arm? If you listen to the patient you may find out more than with a urine test. Please take what ever Jonathan rants about with a grain of salt. He has no technical background to be knowledgeable on these matters and his anger colours all of his responses. If he could only learn the patience necessary to grasp technical things he wouldn't feel so helpless. Most assuredly, Jonathan would never submit to a urine test, so he would most certainly appreciate the benefits of the acoustical method. |
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