The Willard that I am going to buy has two Purifiner bypass oil filters: one on the engine and one on the generator. I am having no luck in finding the *current* American manufacturer or, if it is of English manufacture, anyone who sells these in the marine field. These units have cotton filters and heating elements which evaporate any water in the oil. The one on the engine showed heavy oil feedback through a vent hose on the top of the filter which ran to the crankcase breather intake. So much oil was "returned" that the engine simulated oil "blow-by." There appeared to be an adjustable valve on the engine next to the oil pressure sender and where the hose to the bypass filter was plumbed. To see if the filter was the cause of the "blow-by" we removed the filter from the system by plugging the outlet on the engine and we removed the fuse from the DC line feeding the filter. As a result, the engine performed normally with no blow-by. The only thing that I can think of is that the valve on the engine was sending too much oil to the bypass filter. Please note that *all* reviews of this system are dated 1984 through 1986 when a company named Refineco was located in Southern Florida. An English company makes Puradyn bypass filters and lists many U.S. distributors - but none with websites lists the product. However, Puradyn says that its world headquarters is WORLDWIDE HEADQUARTERS: 2017 High Ridge Road Boynton Beach, FL 33426 Toll Free: 866.puraDYN (866.787.2396) Tel: 561.547.9499 Fax: 561.547.8629 Alex, help! Thank you, Ron Rogers

----- Original Message ----- From: "Ron Rogers" <rcrogers6@comcast.net> > The Willard that I am going to buy has two Purifiner bypass oil filters: > > The one on the engine showed heavy oil feedback through a vent hose on the top > of the filter which ran to the crankcase breather intake. > > However, Puradyn Hi Ron, First, Purifiner and Puradyn are horses of somewhat different shades even though they each do basically the same thing. Here are a couple of websites for the respective product lines: http://www.jowa.se/products/oily/purifiner.htm http://www.puradyn.com/ I'm not really familiar with either but a comparison between your description and the installation instructions for the Puradyn product http://www.puradyn.com/pdf/TF_InstMan_030304.pdf indicate that it may have been installed incorrectly. As I read it, the "vent" line is supposed to come OUT of the bottom of the housing (next to the metering valve) and go INTO the top of the housing where any water vapor will be absorbed by the first segment of the filter element. If I might be allowed a couple of general comments about these products: 1. I've never been an advocate of bypass filtration for recreational boats. With annual engine hours averaging under 200 per year, I just don't think it makes economic sense to install such a system. OTOH: If you're outfitting a truck, heavy equipment, or commercial boat fleet where the annual usage will be ten to thirty times as much, the equation changes in favor of a bypass system. 2. Both the Purifiner and Puradyn systems have heating elements, ostensibly to drive off water. I doubt that this function actually accomplishes much. For example, the Puradyn product claims to heat the oil to 200F; the normal 'bulk' temperature of the engine oil is typically almost that hot anyway and there are places within the engine where the oil gets significantly hotter than that. IOW, heating the oil as part of the filtration process is redundant. Additionally, it's worth mentioning that most bypass systems use a cellulose depth type element and it has been demonstrated (at least to my satisfaction) that this type of filter medium will remove water from oil by itself. 3. The Puradyn system incorporates a TBN additive replacement function. Here again, there is a good deal of evidence that, by removing any water from the oil, the depletion of TBN is drastically reduced. [TBN stands for "Total Base Number" - It's an indication of the oil's ability to cope with acidic combustion byproducts and also an indirect measure of the oil's level of detergent/dispersant additive.] Please don't take any of this to mean that you should remove these filters. They do provide benefits and, as long as the PO was kind enough to buy them for you it would be silly not to put them to use. Purely yours, Alex

Thank you Alex, JOWA lists Purifiner products as "(not available now)." However, the installation manual for the Puradyne definitely give some hints as to the problem. All ideas welcome, Ron ----- Original Message ----- From: "Alex Hirsekorn" <alexh@olypen.com> | | http://www.jowa.se/products/oily/purifiner.htm