What is the current thinking about using the foam air filter on the Yanmar Engine? They seem to disintigrate on their own.
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But oil filter, whoa!
At Mack Boring's Diesel School in NC last month, we heard nine good reasons not to substitute Fram etc for Yanmar oil filters. I was sold.
At Mack Boring's Diesel School in NC last month, we heard nine good reasons not to substitute Fram etc for Yanmar oil filters. I was sold.
Air filter?
What you are calling an air filter, the manual refers to as a noise suppressor. Granted, it does filter the air, since it compresses from the air suction created by the diesel, and it will filter belt dust, grit, etc. It can be washed and dried and used again.
What you are calling an air filter, the manual refers to as a noise suppressor. Granted, it does filter the air, since it compresses from the air suction created by the diesel, and it will filter belt dust, grit, etc. It can be washed and dried and used again.
Filters
I like the oil-soaked aluminum mesh filter on my Universal, since it doesn't present much of a restriction, but it certainly keeps out the big stuff, like nuts and bolts, and should trap most dust. The oil filter thing - I don't believe that stuff about filter brand. Any reputable manufacturer's filter that fits should work fine. The only difference I've seen is that the Mobil One filters trap much smaller stuff.
I like the oil-soaked aluminum mesh filter on my Universal, since it doesn't present much of a restriction, but it certainly keeps out the big stuff, like nuts and bolts, and should trap most dust. The oil filter thing - I don't believe that stuff about filter brand. Any reputable manufacturer's filter that fits should work fine. The only difference I've seen is that the Mobil One filters trap much smaller stuff.
I don't know JV
John: I am not too sure about the cheapo filters. There are several posts on the internet about filters coming apart and sucking all the innards into the engine (sometimes destroying an engine). I never saw any reason to save $3-4 a year on oil filters at the chance of costing me $5000. There was a guy that was actually doing a study on oil filters and he was doing some test on several filter brands. From what I remember many of them are made by a few different companies. The good ones where fine and the others where not. The problem I see is how do you really know until something happens.
John: I am not too sure about the cheapo filters. There are several posts on the internet about filters coming apart and sucking all the innards into the engine (sometimes destroying an engine). I never saw any reason to save $3-4 a year on oil filters at the chance of costing me $5000. There was a guy that was actually doing a study on oil filters and he was doing some test on several filter brands. From what I remember many of them are made by a few different companies. The good ones where fine and the others where not. The problem I see is how do you really know until something happens.
I don't know either
I think the filter storeis are "FUD" spread by the engine parts distribution interests. I have NEVER seen convincing documentation of one of these filter disasters. I mentioned "reputable" in my note. I'm sure Fram or Purolator, or Napa are just the same as a Kubota or Westerbeke branded filter. Do you think Yanmar makes filters? This is just like ink jet printer cartridges, toner cartridges, razor blades, etc. By the way, if you go to a remote filter setup, you can use a bigger, more readily obtainable filter. Cheaper, better.
I think the filter storeis are "FUD" spread by the engine parts distribution interests. I have NEVER seen convincing documentation of one of these filter disasters. I mentioned "reputable" in my note. I'm sure Fram or Purolator, or Napa are just the same as a Kubota or Westerbeke branded filter. Do you think Yanmar makes filters? This is just like ink jet printer cartridges, toner cartridges, razor blades, etc. By the way, if you go to a remote filter setup, you can use a bigger, more readily obtainable filter. Cheaper, better.
John
filters are very different. There was a thread on this awhile back with a consumer report type test. BTW NAPA filters are Wicks, rated very good. Fram was rated low. Best to stick with manufacturers recommendation.
filters are very different. There was a thread on this awhile back with a consumer report type test. BTW NAPA filters are Wicks, rated very good. Fram was rated low. Best to stick with manufacturers recommendation.
Waste your money if you want...
...but you can bet your a** that SOMEONE other than Westerbeke/Universal is makin ghtese filters. From marinedieseldirect: Universal P/N 300209 "This oil filter is for installation on M12, M2-12, M-18, M3-20, M-25, M25-XP, 5421, M4-30 and M-35 Universal engines. " $12.10 Plus shipping and handling, of course. Napa 1334 $6.49 available almost anywhere. Other equivalents at Wal-Mart, even less. jv
...but you can bet your a** that SOMEONE other than Westerbeke/Universal is makin ghtese filters. From marinedieseldirect: Universal P/N 300209 "This oil filter is for installation on M12, M2-12, M-18, M3-20, M-25, M25-XP, 5421, M4-30 and M-35 Universal engines. " $12.10 Plus shipping and handling, of course. Napa 1334 $6.49 available almost anywhere. Other equivalents at Wal-Mart, even less. jv
Take a look and believe what you want!
Here is ONE study that was done on oil filters. I guess my point is unless you actually pull a filter apart and inspect it you do not know what you have purchased. At least you have your engine manufactuer recommendation when you use one of their filters. http://www.frankhunt.com/FRANK/corvette/articles/oilfilterstudy/oilfilterstudy.html
Here is ONE study that was done on oil filters. I guess my point is unless you actually pull a filter apart and inspect it you do not know what you have purchased. At least you have your engine manufactuer recommendation when you use one of their filters. http://www.frankhunt.com/FRANK/corvette/articles/oilfilterstudy/oilfilterstudy.html
What conclusion did you draw?
This seems a bit silly to me. Rick, what do you now believe after reading the study? He didn't cut up any Yanmar or Universal or Westerbeke filters. How do you know that they are any good? Who makes the OEM filters for these guys? Maybe its Fram! jv p.s. What are the nine good reasons to use Yanmar filters??? p.p.s. I will cut up and report on any filters people care to send (new only - don't want the mess of used) - honest! I will cut up some of my inventory (I bought a case of filters (12) for $6.00!) p.p.p.s. If you go to a remote oil filter, you can basically choose which filter to use - including the best one from the study, the AC Delco Duraguard, for $3.00.
This seems a bit silly to me. Rick, what do you now believe after reading the study? He didn't cut up any Yanmar or Universal or Westerbeke filters. How do you know that they are any good? Who makes the OEM filters for these guys? Maybe its Fram! jv p.s. What are the nine good reasons to use Yanmar filters??? p.p.s. I will cut up and report on any filters people care to send (new only - don't want the mess of used) - honest! I will cut up some of my inventory (I bought a case of filters (12) for $6.00!) p.p.p.s. If you go to a remote oil filter, you can basically choose which filter to use - including the best one from the study, the AC Delco Duraguard, for $3.00.
The Conclusion For Me, John
...was that I wasn't going to continue using Fram, that there really was a difference in filters as claimed by the Yanmar rep, and that for a couple of bucks, I have enough reason to go OEM since I don't know enough to make a more informed choice. That's my story and I'm sticking to it.... Rick D.
...was that I wasn't going to continue using Fram, that there really was a difference in filters as claimed by the Yanmar rep, and that for a couple of bucks, I have enough reason to go OEM since I don't know enough to make a more informed choice. That's my story and I'm sticking to it.... Rick D.
The reason is
that diesel engines produce a higher lubrication oil pressure than automotive engines. Thus filters designed for automotive engines have a bypass valve(that little rubber valve in the internal face of the filter)that is set lower than deisel filters. This is set so that a dirty/clogged filter will not interupt the oil flow thru the filter. Because deisel engines have a higher pumping oil pressure, using an automotive filter will cause the filter to be in constant bypass. Thus no filtration. Deisel filters have a higher bypass setting. Why take a chance for a few pennies? This was told to me at a Yanmar engine class. George s/v Windswept _/)
that diesel engines produce a higher lubrication oil pressure than automotive engines. Thus filters designed for automotive engines have a bypass valve(that little rubber valve in the internal face of the filter)that is set lower than deisel filters. This is set so that a dirty/clogged filter will not interupt the oil flow thru the filter. Because deisel engines have a higher pumping oil pressure, using an automotive filter will cause the filter to be in constant bypass. Thus no filtration. Deisel filters have a higher bypass setting. Why take a chance for a few pennies? This was told to me at a Yanmar engine class. George s/v Windswept _/)
Didn't this start out to be about air filters?
I'll jump in anyway because John V. asked the question. I have a M-18 Universal. I removed the outer layer of paint of the OEM filters and found the fuel filter is a Baldwin BF940. The oil filter did not have a name brand, just the number PH-2808 which is probably a Baldwin or a Lee (Lee makes a replacement filter LF-2808) So much for OEM.
I'll jump in anyway because John V. asked the question. I have a M-18 Universal. I removed the outer layer of paint of the OEM filters and found the fuel filter is a Baldwin BF940. The oil filter did not have a name brand, just the number PH-2808 which is probably a Baldwin or a Lee (Lee makes a replacement filter LF-2808) So much for OEM.
Really?
George, I don't think there is any difference in operating pressures for gas v. diesel in this class, anyway. 10 to 15 psi per 1000 RPM at operating ppressure. Expect your engine's oil filter bypass to begin opening at around 70 psi. THe filter's bypass works off the difference in pressure, in to out, and should stay closed unless its really clogged. I think mine operates at around 25 or 35 psi, and is really high when cold, say 70 or 80. If it gets really hot, the oil pressure can drop down to 15 or so. (I installed an oil pressure guage when I re-did the boat). jv
George, I don't think there is any difference in operating pressures for gas v. diesel in this class, anyway. 10 to 15 psi per 1000 RPM at operating ppressure. Expect your engine's oil filter bypass to begin opening at around 70 psi. THe filter's bypass works off the difference in pressure, in to out, and should stay closed unless its really clogged. I think mine operates at around 25 or 35 psi, and is really high when cold, say 70 or 80. If it gets really hot, the oil pressure can drop down to 15 or so. (I installed an oil pressure guage when I re-did the boat). jv
PH-2808
I think its a Champion. Manufacturer Part # QTY Retail Your Cost! Champ PH2808 1 $6.99 $3.38
I think its a Champion. Manufacturer Part # QTY Retail Your Cost! Champ PH2808 1 $6.99 $3.38
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