---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Sun 12/10/06: 16 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:33 AM - Re: 912UL rough at around 4000 (Roger Lee) 2. 07:40 AM - Re: Oil pressure issues (Roger Lee) 3. 07:49 AM - Re: Warp Drive Hub (Roger Lee) 4. 08:11 AM - Re: Oil Filter (Roger Lee) 5. 08:44 AM - Re: Re: Oil Filter (Duncan & Ami McFadyean) 6. 08:54 AM - Re: Oil Filter (Roger Lee) 7. 09:25 AM - Re: Re: Oil Filter (ivor.phillips) 8. 09:55 AM - Re: Oil Filter (Roger Lee) 9. 11:53 AM - Re: Oil Filter (Roger Lee) 10. 01:09 PM - Re: Oil Filter (Roger Lee) 11. 01:39 PM - Re: Re: Oil Filter (ivor.phillips) 12. 02:27 PM - Re: Oil Filter (Roger Lee) 13. 04:24 PM - 912ULS Spark Plug Gap???? (ricklach) 14. 05:41 PM - Re: 912ULS Spark Plug Gap???? (Michael Grass) 15. 05:46 PM - Re: 912ULS Spark Plug Gap???? (Roger Lee) 16. 09:26 PM - Re: 912ULS Spark Plug Gap???? (NYTerminat@aol.com) ________________________________ Message 1 _____________________________________ Time: 07:33:16 AM PST US Subject: RotaxEngines-List: Re: 912UL rough at around 4000 From: "Roger Lee" Hi Guys, This can be typical if your carbs are out of sync. do the manual sync and then the vacumm guage sync. It should go away. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p524#80524 ________________________________ Message 2 _____________________________________ Time: 07:40:43 AM PST US Subject: RotaxEngines-List: Re: Oil pressure issues From: "Roger Lee" Hi Guys, This is an electronics or sender issue and not a filter issue. The bypass on the filter works on differential pressure before it opens and not normal system pressure. The bypass only opens if there is a difference in pressure between the upstream and down stream side of a filter. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p526#80526 ________________________________ Message 3 _____________________________________ Time: 07:49:56 AM PST US Subject: RotaxEngines-List: Re: Warp Drive Hub From: "Roger Lee" Hi, You do not mention what your max rpm is proped to. You should not have too large a prop, just make sure you are getting the correct max rpm for your engine. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p527#80527 ________________________________ Message 4 _____________________________________ Time: 08:11:36 AM PST US Subject: RotaxEngines-List: Re: Oil Filter From: "Roger Lee" Hi Guys, A Fram Tough Guard TG3614 works just fine (bypass pressure of 22 psi) Normal aircraft bypass pressures are 12-14 psi). There are 14 other filters that will fit. I will publish a list a little later when I'm not at work. I am currently trying to get the bypass pressure for the rotax filter, but no one in the USA or Canada knows. Kodiak has not returned my email and Rotax in Austria has not retruned my email. I will find out. I have even tried tracking down the Mfg, but to no avail. I have used a TG3614 for 3 years (830 hrs) and no problems, plus I have friends with over 2500 hrs. on their 912s and never have done a rebuild with this filter. Rotax has even checked the 2500 hr. engine and found no reason for an overhaul except for the 1500 hr. TBO. It was still tight as a drum and running like day one. Filters are designed to flow at a certain rate. The TG3614 is 6 gal. a minute and so are most in this catagory. This filter handles 4-8 cylinder cars. Car engines run oil pressures at 40-65 for normal cars. This is about the same as a rotax 912s. The Rotax does not flow more than the 6 gal. a minute. The bypass valve works only on differential pressure between the upstrem and down stream side of the filter. So unless your filter is clogged or your Rotax engine flows more oil per minute than a car, then I would have to say you will not have any issues. Some things Mfg's. say look good on paper, but don't always hold up in real life. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p529#80529 ________________________________ Message 5 _____________________________________ Time: 08:44:59 AM PST US From: "Duncan & Ami McFadyean" Subject: Re: RotaxEngines-List: Re: Oil Filter Roger, What size of filtration do these filters provide in comparison to the Rotax product. And do they have the same temperature stability? There is a Champion p/n shown on some of the Rotax-supplied filters. Using this part no. I found that my local auto parts store had the same item in stock. They only had the one, they had had it for three years and sold none. The price was nearly three times the current Rotax price! Duncan McF. ----- Original Message ----- From: "Roger Lee" Sent: Sunday, December 10, 2006 4:11 PM Subject: RotaxEngines-List: Re: Oil Filter > > Hi Guys, > > A Fram Tough Guard TG3614 works just fine (bypass pressure of 22 psi) > Normal aircraft bypass pressures are 12-14 psi). There are 14 other > filters that will fit. I will publish a list a little later when I'm not > at work. I am currently trying to get the bypass pressure for the rotax > filter, but no one in the USA or Canada knows. Kodiak has not returned my > email and Rotax in Austria has not retruned my email. I will find out. I > have even tried tracking down the Mfg, but to no avail. > I have used a TG3614 for 3 years (830 hrs) and no problems, plus I have > friends with over 2500 hrs. on their 912s and never have done a rebuild > with this filter. Rotax has even checked the 2500 hr. engine and found no > reason for an overhaul except for the 1500 hr. TBO. It was still tight as > a drum and running like day one. Filters are designed to flow at a certain > rate. The TG3614 is 6 gal. a minute and so are most in this catagory. This > filter handles 4-8 cylinder cars. Car engines run oil pressures at 40-65 > for normal cars. This is about the same as a rotax 912s. The Rotax does > not flow more than the 6 gal. a minute. The bypass valve works only on > differential pressure between the upstrem and down stream side of the > filter. So unless your filter is clogged or your Rotax engine flows more > oil per minute than a car, then I would have to say you will not have any > issues. > Some things Mfg's. say look good on paper, but don't always hold up in > real life. > > -------- > Roger Lee > Tucson, Az. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p529#80529 > > ________________________________ Message 6 _____________________________________ Time: 08:54:40 AM PST US Subject: RotaxEngines-List: Re: Oil Filter From: "Roger Lee" Hi Duncan, The temp is not a problem. I am looking for the micron filter size and bypass pressure from Rotax. It would be nice if someone in at Rotax in North America knew the answers, but I have not found anyone with that info. I have called all the distributors and techs in the USA and Canada. I tried to track down the exact Mfg, but to no avail. It is not made by the Champion people that we know here in the US. I called them, both the Aviation and Auto Champion group. If I don't hear from Rotax form Kodiak or overseas by Tuesday I am going to call Austria for the info. I'll keep the board informed. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p539#80539 ________________________________ Message 7 _____________________________________ Time: 09:25:29 AM PST US From: "ivor.phillips" Subject: RE: RotaxEngines-List: Re: Oil Filter The manufacturer of Rotax oil filters are http://www.filtersupplyamerica.com/knecht-mahle-filters.htm Knecht oc11 There quality is first rate including quality filtration media, Very high burst pressure with Nitrile Rubber anti drain valve, You couldn't pay me enough to put a fram filter on my engine! Open one up and check the quality against a K&N,STP Mobil 1 or Mann/Hummel If you haven't the time then read Engine Oil filters overview http://minimopar.knizefamily.net/oilfilterstudy.html http://minimopar.knizefamily.net/oilfilterstudy.html Very interesting reading Regards Ivor Phillips Rotax 914 -----Original Message----- From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Duncan & Ami McFadyean Sent: 10 December 2006 16:44 Subject: Re: RotaxEngines-List: Re: Oil Filter Roger, What size of filtration do these filters provide in comparison to the Rotax product. And do they have the same temperature stability? There is a Champion p/n shown on some of the Rotax-supplied filters. Using this part no. I found that my local auto parts store had the same item in stock. They only had the one, they had had it for three years and sold none. The price was nearly three times the current Rotax price! Duncan McF. ----- Original Message ----- From: "Roger Lee" Sent: Sunday, December 10, 2006 4:11 PM Subject: RotaxEngines-List: Re: Oil Filter > > Hi Guys, > > A Fram Tough Guard TG3614 works just fine (bypass pressure of 22 psi) > Normal aircraft bypass pressures are 12-14 psi). There are 14 other > filters that will fit. I will publish a list a little later when I'm not > at work. I am currently trying to get the bypass pressure for the rotax > filter, but no one in the USA or Canada knows. Kodiak has not returned my > email and Rotax in Austria has not retruned my email. I will find out. I > have even tried tracking down the Mfg, but to no avail. > I have used a TG3614 for 3 years (830 hrs) and no problems, plus I have > friends with over 2500 hrs. on their 912s and never have done a rebuild > with this filter. Rotax has even checked the 2500 hr. engine and found no > reason for an overhaul except for the 1500 hr. TBO. It was still tight as > a drum and running like day one. Filters are designed to flow at a certain > rate. The TG3614 is 6 gal. a minute and so are most in this catagory. This > filter handles 4-8 cylinder cars. Car engines run oil pressures at 40-65 > for normal cars. This is about the same as a rotax 912s. The Rotax does > not flow more than the 6 gal. a minute. The bypass valve works only on > differential pressure between the upstrem and down stream side of the > filter. So unless your filter is clogged or your Rotax engine flows more > oil per minute than a car, then I would have to say you will not have any > issues. > Some things Mfg's. say look good on paper, but don't always hold up in > real life. > > -------- > Roger Lee > Tucson, Az. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p529#80529 > > ________________________________ Message 8 _____________________________________ Time: 09:55:17 AM PST US Subject: RotaxEngines-List: Re: Oil Filter From: "Roger Lee" Hi Guys, Read this article it will help understand some about filters. I believe Pure One and Mobile 1 are some of the best, the Fram Tough Guard is not bad. A human hair is 50 microns in diameter and Mobile 1 says they filter at 10 micron, but you do need to know at what effiency rating that is. Here is the article page. It's fairly enlightening: motorcycleinfo.calsci.com/filters.html -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p559#80559 ________________________________ Message 9 _____________________________________ Time: 11:53:41 AM PST US Subject: RotaxEngines-List: Re: Oil Filter From: "Roger Lee" the web site as listed didn't work so here it is again. www.motorcycleinfo.calsci.com Then go down the left side to "Articles" and then in that subheading click on "oil filters" -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p580#80580 ________________________________ Message 10 ____________________________________ Time: 01:09:56 PM PST US Subject: RotaxEngines-List: Re: Oil Filter From: "Roger Lee" Hi Ivor, What makes you think that Knecht-Mahle makes the Rotax 912s filter? I have looked and ask everywhere and know one seemed to know. The filter has the name Champion on it plus two part numbers. I wrote down Mahle phone number and will call them tomorrow. I hope you are right as this may put an end to a long search for answers. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p591#80591 ________________________________ Message 11 ____________________________________ Time: 01:39:26 PM PST US From: "ivor.phillips" Subject: RE: RotaxEngines-List: Re: Oil Filter If you read this Rotax Document it clearly shows that Knecht/Mahle 0c11 is the filter they use, This side of the pond could use a Mann W77 as a direct replacement http://www.mann-hummel.com/mf_prodkata_eur/index.html?ktlg_page=07&ktlg_lang =1&ktlg_07_pdartg=O&ktlg_07_fifog=420 You can get a good cross reference using the above URL Regards Ivor -----Original Message----- From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Roger Lee Sent: 10 December 2006 21:09 Subject: RotaxEngines-List: Re: Oil Filter Hi Ivor, What makes you think that Knecht-Mahle makes the Rotax 912s filter? I have looked and ask everywhere and know one seemed to know. The filter has the name Champion on it plus two part numbers. I wrote down Mahle phone number and will call them tomorrow. I hope you are right as this may put an end to a long search for answers. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p591#80591 ________________________________ Message 12 ____________________________________ Time: 02:27:06 PM PST US Subject: RotaxEngines-List: Re: Oil Filter From: "Roger Lee" Hi Ivor, Thank You very much. I'm back on the trail like a hound on a fox. I will be calling these people. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p606#80606 ________________________________ Message 13 ____________________________________ Time: 04:24:03 PM PST US Subject: RotaxEngines-List: 912ULS Spark Plug Gap???? From: "ricklach" I guess Im blind. Its a snow day and Ive read through every manual I have (a total of four) for my 912ULS and I can not find the gap setting for the spark plugs. Could some one that is sure of what the gap should be please help me out, and if your really feeling benevolent you could even tell me which manual and page it is written on. Thank you Read this topic online here: http://forums.matronics.com/viewtopic.php?p634#80634 ________________________________ Message 14 ____________________________________ Time: 05:41:27 PM PST US From: "Michael Grass" Subject: Re: RotaxEngines-List: 912ULS Spark Plug Gap???? Rick, the spark plug gap is 0.7 - 0.8 mm for the 912ULS. You can find this information on the "912 Maintenance Manual" document d01855 on page 38. Regards Michael Grass Europa XS Trigear, Rotax 914 ----- Original Message ----- From: "ricklach" Sent: Sunday, December 10, 2006 7:23 PM Subject: RotaxEngines-List: 912ULS Spark Plug Gap???? > > I guess I?Tm blind. It?Ts a snow day and I?Tve read through every > manual I have (a total of four) for my 912ULS and I can not find the gap > setting for the spark plugs. Could some one that is sure of what the gap > should be please help me out, and if your really feeling benevolent you > could even tell me which manual and page it is written on. > > Thank you > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p634#80634 > > > ________________________________ Message 15 ____________________________________ Time: 05:46:30 PM PST US Subject: RotaxEngines-List: Re: 912ULS Spark Plug Gap???? From: "Roger Lee" Hi Rick, I usually set mine at .028 I like the slightly smaller gap because it has been easier to start on cold mornings. I have tried .030, but went back to .028. At a .028 my plugs are a light tan in color. Go to the Rotax owners website. Open the Kodiak section. On the left side open the line maint. manual and page 102. gap to be .027 to .031 I have printed this Line maint. and the heavy maint. manual out and put them in a 3 ring binder that I leave in the hanger. Printing it is cheaper than $29.95 and quicker. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p653#80653 ________________________________ Message 16 ____________________________________ Time: 09:26:31 PM PST US From: NYTerminat@aol.com Subject: Re: RotaxEngines-List: 912ULS Spark Plug Gap???? 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