This week I did some research into the effect of F.I. nozzle block temperature on fuel percolation and heat soak. This can be an extension to the excellent work and Restorer article that Jim Lockwood has recently done.
What I did is with the engine hot I measured the nozzle block and manifold (measured directly below the nozzle block) temperature with the OEM steel bolts and then with the Nylon bolts that several of us have recently tried. I made measurements with the engine fully warmed up and idling, and then shut off the engine and took measurements at 5, 10, 15, and 20 minute intervals.
The enclosed PDF Word file is the test procedure and data file that I have just completed. (I just got an education on posting Word files on the TBD. I hope it uploaded - there is no indication that it did).
All comments are welcome. I would hope that we can add to this and perhaps find a permanent solution the perk problems inherent to our old FI units.Heat Soak Data^J Run 2.pdf
I recently supplied Nylon bolts to several members. I have not yet received any feedback on the results.
Dannnn
What I did is with the engine hot I measured the nozzle block and manifold (measured directly below the nozzle block) temperature with the OEM steel bolts and then with the Nylon bolts that several of us have recently tried. I made measurements with the engine fully warmed up and idling, and then shut off the engine and took measurements at 5, 10, 15, and 20 minute intervals.
The enclosed PDF Word file is the test procedure and data file that I have just completed. (I just got an education on posting Word files on the TBD. I hope it uploaded - there is no indication that it did).
All comments are welcome. I would hope that we can add to this and perhaps find a permanent solution the perk problems inherent to our old FI units.Heat Soak Data^J Run 2.pdf
I recently supplied Nylon bolts to several members. I have not yet received any feedback on the results.
Dannnn
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