Hi,
During the engine mount , I forgot to screw the AN oil pressure fitting...and now I can see how painfull it is to do...is it possible to screw it without to remove the engine, I hate to do this...Any information quite appreciated...
I know many will disagree, but just install the transducer directly on the engine above the oil pressure adjustment valve. Use PFTE lube and safety wire. Just because it has been standard practice to mount it on the firewall for decades does not mean it is necessary. Yes the engine vibrates but that will not make the plug fall out. Further, this method lessens complexity and weight. Why would one want to run a semi rigid oil line from the engine to the firewall just so the transducer can be mounted on the firewall? Furthermore, todays senders are less prone to failure due to vibrations than the old sender units were.
I know other RV builders that have used this method with over a 1000 flight hours with no problems.
I know many will disagree, but just install the transducer directly on the engine above the oil pressure adjustment valve. Use PFTE lube and safety wire. Just because it has been standard practice to mount it on the firewall for decades does not mean it is necessary. Yes the engine vibrates but that will not make the plug fall out. Further, this method lessens complexity and weight. Why would one want to run a semi rigid oil line from the engine to the firewall just so the transducer can be mounted on the firewall? Furthermore, todays senders are less prone to failure due to vibrations than the old sender units were.
I know other RV builders that have used this method with over a 1000 flight hours with no problems.
I think the reason for remote mounted transducers is due to concern about the mass of a vibrating engine-mounted transducer causing the fitting on the transducer to fail resulting in massive oil loss.
This may not be an issue with newer, low-mass transducers but remote mounting removes the possibility of mechanical failure of the transducer fitting.
How high the heat? Is there any risk to damage the thread?