I like the way you had the mounting block on the Fwd firewall for the termination of the braided line and also for mounting the electric sending unit. That makes good sense compared to having the sending unit vibrating on the front of the engine. Did you run a braided line inside the cockpit to the instrument panel? Does that mounting block have a braided line inside the cockpit to the instrument panel? Does that mounting block have an access fitting through the firewall to the cockpit to make the connection? Where did you purchase, the mounting block that you had on the firewall? Cheers TIA Keith
On Tue, Sep 10, 2024 at 7:40 AM K W <kwiese...@gmail.com> wrote: > Thanks for the info. > > On Mon, Sep 9, 2024 at 9:48 PM Luis Claudio <dallasbori...@yahoo.com> > wrote: > >> Keith I was out at the airport today and I took a picture of my >> installation, and here you can see how I mounted mine. The braided lines I >> buy relatively cheap at Smiley's Auto Racing Shop in Dallas. I think they >> are about $12 for a relatively long braided line. The sender is a VDO >> generic unit for my Revmaster 2100D. >> >> Luis >> >> On Monday, September 9, 2024 at 02:25:41 PM CDT, K W <kwiese...@gmail.com> >> wrote: >> >> >> Thank you everyone for your response. >> >> My oil pressure line is just a 1/8 plastic for testing purposes on ground >> engine run up. For pressure testing. >> >> Luis thank you. I will take your advice and go with A permanently steel >> braided line to an added direct Reading oil pressure gauge in the >> instrument panel. At this point, I probably will not worry about whether >> the sending unit has to match the HAPPI instrument oil pressure gauge and >> probably just put on a generic sending unit and see how that affects the >> instrument Reading as a remedy and a back up for dual oil pressure >> instrumentation. >> >> Cheers >> Keith >> N2022D >> >> On Mon, Sep 9, 2024 at 12:33 AM Luis Claudio via KRnet < >> krnet@list.krnet.org> wrote: >> >> I am having the same problem on my 2100D. I've had fluctuations on my Oil >> Pressure EMS indicator from a normal (temp) oil pressure of 30PSI dropping >> down to 12PSI which sets off bitching Betty. I connected a mechanical >> pressure gauge on a tee where the oil line comes off the engine, one branch >> of the tee goes to the VDO sending unit mounted on the firewall (braided SS >> line) and the gauge is mounted on the engine coming off of the engine case. >> This is only for testing purposes with the top cowling off.. >> >> The mechanical gauge has recorded pressures as high as 45-50 when the >> engine is cold and 23-30 when engine is at normal temperature (approx. >> 140deg F). On the contrary, I have recorded pressures as low as 12 PSI on >> the EMS during the same test. >> >> I have replaced my oil pressure sending unit three time. My latest one is >> a VDO unit. The other two previous units were bought on the internet from >> China. My oil line is a SS braided flex line from the engine to a header on >> the fire wall which connects to a test port for a mechanical gauge and a >> secondary port for my sending unit. I was wondering if the line has an air >> pocket in it that acts like a hydraulic hammer and causes the fluctuations. >> My second thought was to rebuild the oil pump. >> >> Sorry that at this time I have no solution, but I am working on the >> problem. >> >> Luis >> >> >> Sent from Yahoo Mail for iPhone >> <https://mail.onelink.me/107872968?pid=nativeplacement&c=Global_Acquisition_YMktg_315_Internal_EmailSignature&af_sub1=Acquisition&af_sub2=Global_YMktg&af_sub3=&af_sub4=100000604&af_sub5=EmailSignature__Static_> >> >> On Sunday, September 8, 2024, 4:25 PM, Larry Flesner via KRnet < >> krnet@list.krnet.org> wrote: >> >> >> On 9/8/2024 10:50 AM, K W via KRnet wrote: >> > Hello to everyone. >> > I have a very erratic oil pressure gauge reading in the cockpit. >> > Installed a connector T at the oil pressure port on my 2100 D and >> > attached a direct reading gauge for verification. Direct reading gauge >> > is very steady oil pressure while cockpit >> > instrumentation is sporadic fluctuating from 0 to 40. my question, >> > assuming I need to replace the sending unit, does a sending unit have >> > to match the happi gauge or can I buy an off the shelf sending unit? >> > >> > Cheers TIA >> > Keith >> > >> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >> >> Keith, >> >> Not seeing a response I'll throw in my non-mechanic opinion. Buy an off >> the shelf gauge and see if it matches the direct reading test gauge. I >> can't imagine that it wouldn't. My only concern is that any gauge used >> have a very tiny orifice in line in case of a leak in the gauge it >> doesn't dump all your oil before you can get down safely. >> >> Larry Flesner >> >> >> -- >> KRnet mailing list >> KRnet@list.krnet.org >> https://list.krnet.org/mailman/listinfo/krnet >> >> -- >> KRnet mailing list >> KRnet@list.krnet.org >> https://list.krnet.org/mailman/listinfo/krnet >> >>
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