Brodhead Pietenpol Association

Original Posted By: "Dick N"
Ok... got my engine back together and ran it yesterday.I modified the oil pump per a ford Nov1932 service bulletin to increase the oilflow and machined the housing and gears to increase pressure a bit per billsbangers.comTo my surprise, after running it I saw a steady 2lbs of pressure.I plugged the line going from the pump galley to the front of the pan...red arrowbelow.... and that gives me 5-6 lbs.. I know the increase in flow is big..and its feeding the bearings for sure cause I now have a front main leak.. buti'm wondering how important the line, red arrow, from the pump to the dippertray really is... could it be restricted a bit or go away. the other line fromthe valve galley is feeding the tray and all the oil from the mains hits thetray too. The line from the pump to the tray is just a big "leak" on the pressurefeeding the mains.about to pull the pan to fix the main sealjeff faithRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/oilp ... __________

Original Posted By: bender
Jeff,Can't answer your question because of limited knowledge. It sounds like you may be on to something.Can you share your conclusions for the piston scraping problems? I would sure like to hear your thoughts on that subject now that you have done the rebuild.Dan HelsperPuryear, TN-----Original Message-----

Original Posted By: Michael Perez
I may have missed it=2C but did anyone ever comment or respond to 'bender's question about oil pressure and how the oil passages and tubes all feed the Ford engine? As a mechanical engineer I'm interested in this because one of the articles in the upcoming all-Piet issue of Contact! will focus on the most classic of Piet powerplants=2C the Ford "A" engine=2C and its conversion. So far=2C what I have gathered is that the formula for success with it is "start with one part cast iron=2C add some Babbitt=2C mix some water with a touch of steam and pour it in through a rubber hose=2C add four short stacks=2C give it a quick blue spark=2C swing a dead chicken by its neck=2C and spin the prop". Seriously=2C the oiling system seems to me to be (from Mr. Pietenpol's conversion plans for the Ford engine) one of the biggest differences between the land and air applications. The other two are=2C of course=2C the ignition (magneto) and the output (propeller hub). "bender" seems to have problems with too much oil finding its way to one spot=2C thus diverting it from other spots where it is needed as well. Is this common in the Ford=2C or does "bender" perhaps have excessive clearance in one of the oiling paths and it's shunting the flow?Oscar ZunigaMedford=2C ORAir Camper NX41CC "Scout"A75 power (NO water involved!) ________________________________________________________________________________Date: Thu, 15 Aug 2013 04:01:19 -0700 (PDT)

Original Posted By: "bender"
The Pietenpol Gods must have intervened. I just received an email from WW thatmy distributor was being mailed today. Not which one of you is God?John--------John FrancisRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: ford oil pressure

Original Posted By: Jack
Classic summery Oscar..the way the oil drain from the front main into the dipper pan i'm sure I can eliminatethe one tube.I got it all together and running ..again ..and the front main seal is leakingagain... during the running it appears to have turned under I guess.. a bit ofthe seal is sticking out the wrong way and it wasn't when I first started it...it's just about to win. This whole business of disassembly and reassembly fora "modern" $12 seal is killing me. wish it still had a slinger on it.oil steam.. and iron..jeffRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Scott's method for prop balancing.