Hey Matt. Finally she`s back in one piece. God bless. And sooner than you think, she`ll be flying again. She probably needs just a little "fine tuning". Great job from you & don & all your crew. Looking forward for the flying video. Till then "happy landings from Portugal.🤙
I can feel your frustration! But wow, I'm not sure if I've missed some of your videos or not, but you've come so far from where you were during the last video I saw posted by you. That's sure something to remember to feel good about!!!! I love that you involve your son in what you're doing! One day he will think back and realize what a lucky young man he was in how his father raised him!
Fill the old filter screen housing through the oil temperature probe hole with oil. Put it back together and start it quickly. As the oil pump gets worn, it won’t pick up unless they’re “wet” with oil. This happens when they sit a long time. You can stand a cub up on its nose and get a 67/75 continental to pick up oil. However, it is not easy to stand a 150 on its nose safely hahaha. Just use an oil squirt can through the oil temp hole.
Old Cub trick. After sitting for a while, would lose prime and no OP on start up. Just lift the tail for 20-30 seconds and restart and oil pressure is back. In your case, squirt oil on the oil screen cavity and restart as soon as possible. If not that, take a close look at gauges and lines, or use alternate pressure gauge. Since you already pulled the pump. Might as well go-ahead and send it out and get it re-freshed, so you never have to worry again for a long time. Good luck.
My thoughts: Pull the spark plugs so it cranks easier. Disconnect the oil pressure gauge @ the engine. Connect a line to the fitting on the engine. Set up a drain so that an external oil can will drain into the oil pressure gauge hole. Run through a quart or more of oil through the gauge fitting. Reconnect the gauge, crank with the starter & see if pressure develops DO NOT run that engine ANY MORE without oil pressure. Good Luck, We're All Counting On You
Lot's of good suggestions. We prep engine oil galleries of car engines by removing the oil pressure switch and attaching a braided line to a cylinder which we fill with oil and then attach an air line to the top of that cylinder. Pressure the cylinder and oil is forced through all the oil galleries including through the oil pump. Works for us on brand new or rebuilt engines.
If I were to hazard a guess. When the plane was upside down oil traveled to bellows in the gauge and sitting for a year has gummed it up. Not seeing anything untowards in the pump gears or backplate. If the feeler gauge doesn't fit you must acquit.
common isue wiith little continentals.with oil filter adapter installed. remove filter and fill adapter port with oil to prime pump. just went through this with an ercoupe that was sitting.
Well that double sucks matt...I would pop the plugs and disconnect the oil line from the gauge and put it into the water bottle or something and just motor the engine over.
I tend to think that the comments about priming the oil line to the guage might have some value. Hope you get it figured out soon. Take care and keep at it.!
I would have fitted a mechanical gauge and spun the engine over without plugs to see if I get oil pressure. The next check is a stuck pressure relief valve. Even a badly worn pump will give some pressure.
I really don’t think it’s your oil pump.. It’s probably some other little irritating issue that you will need to find.. It’s like chasing Casper the friendly ghost around in a closet, (Good Luck finding it..) I’m sure you will get it figured out, it will just take some time.. Great video as always Matt.. Keep your head up.. You got this!!! Can’t wait to see your 150 back in the air!!!! What a beautiful plane you have!!!
If the gauge is all mechanical, I would check the tube between the engine port and gauge for a pinch and try screwing in a known good pressure gauge directly to the engine port and checking. That oil pump sure looked dry - pickup tube?
Probably not the oil pump. Squirt oil in the oil line going to the oil pressure gauge. Might need WD-40 even it drained out while being down. Air in that line your engine is fine .
Just saw the same issue on another plane that has been sitting. Used an oil can to squirt oil in the line toward the gauge, then down to the pump. Did the trick!
I agree, I've seen zero oil pressure at times like this. I was reluctant to shoot oil down cylinders, but bam. 60 psi in a few seconds. Sometimes the old tricks have stuck around because they work.
If in doubt that there is oil on wearing surfaces before a third and possibly dry start, maybe ask authorised mechanics about overfilling the engine case with oil to prelube the wearing surfaces, draining then filling to correct level, turning over with plugs removed to be sure there is no hydrolocking before restarting. ua-cam.com/video/GX-Hqk9nZ3s/v-deo.html
Did the line to the gauge get a kink? As others say see if the pump sends oil to the gauge. And since you have the gauge lose to do that, see if the gauge indicates with an application of pressure.
Bummer. Pump gears look decent enough to me. I've seen some scored up ones that still pumped pretty good too. How did the engine sound? Was there oil in the pump when you took it apart? Was the engine getting kinda rattly? If not maybe it is just the gauge.
I'm not familiar with your engine but I wonder if you need to prime the pump for the first start, the vertical lift is a significant distance judging from the pick up tube. I have had manuals suggest to pack the pump with Vaseline to create suction. You might also be able to back prime the pump from the oil filter. Anyone who's been around pumps knows that style make horrible compressors and worse vacuums.
👍☑Matt you obviously dont know your plane well, just fill it up with CORN OIL and it will do great! LOL Seriously that sucks but we know that you guys will have it resolved in no time!
I can see now I need to make a video of the measures we took before we tore the engine down.
Yup, everyone has ideas! Too bad you had to tear it down.
Thanks for posting! Good luck!
Your kid's smile when the engine turned on was priceless....i wish my kids got that excited! Lol
Hey Matt. Finally she`s back in one piece. God bless. And sooner than you think, she`ll be flying again. She probably needs just a little "fine tuning". Great job from you & don & all your crew. Looking forward for the flying video. Till then "happy landings from Portugal.🤙
I would check to make sure it isn't an instrumentation issue.
I can feel your frustration! But wow, I'm not sure if I've missed some of your videos or not, but you've come so far from where you were during the last video I saw posted by you. That's sure something to remember to feel good about!!!!
I love that you involve your son in what you're doing! One day he will think back and realize what a lucky young man he was in how his father raised him!
Love the Mansell hat!! Nice design for sure!!
Love your down to earth videos
Fill the old filter screen housing through the oil temperature probe hole with oil. Put it back together and start it quickly. As the oil pump gets worn, it won’t pick up unless they’re “wet” with oil. This happens when they sit a long time. You can stand a cub up on its nose and get a 67/75 continental to pick up oil. However, it is not easy to stand a 150 on its nose safely hahaha. Just use an oil squirt can through the oil temp hole.
Prime that tiny line, you got air in the line. Also prime the oil pump .
Old Cub trick. After sitting for a while, would lose prime and no OP on start up. Just lift the tail for 20-30 seconds and restart and oil pressure is back. In your case, squirt oil on the oil screen cavity and restart as soon as possible. If not that, take a close look at gauges and lines, or use alternate pressure gauge. Since you already pulled the pump. Might as well go-ahead and send it out and get it re-freshed, so you never have to worry again for a long time. Good luck.
My thoughts: Pull the spark plugs so it cranks easier. Disconnect the oil pressure gauge @ the engine. Connect a line to the fitting on the engine. Set up a drain so that an external oil can will drain into the oil pressure gauge hole. Run through a quart or more of oil through the gauge fitting. Reconnect the gauge, crank with the starter & see if pressure develops DO NOT run that engine ANY MORE without oil pressure. Good Luck, We're All Counting On You
Agreed.
Lot's of good suggestions. We prep engine oil galleries of car engines by removing the oil pressure switch and attaching a braided line to a cylinder which we fill with oil and then attach an air line to the top of that cylinder. Pressure the cylinder and oil is forced through all the oil galleries including through the oil pump. Works for us on brand new or rebuilt engines.
If I were to hazard a guess. When the plane was upside down oil traveled to bellows in the gauge and sitting for a year has gummed it up. Not seeing anything untowards in the pump gears or backplate. If the feeler gauge doesn't fit you must acquit.
common isue wiith little continentals.with oil filter adapter installed. remove filter and fill adapter port with oil to prime pump. just went through this with an ercoupe that was sitting.
Well that double sucks matt...I would pop the plugs and disconnect the oil line from the gauge and put it into the water bottle or something and just motor the engine over.
👍☑
I tend to think that the comments about priming the oil line to the guage might have some value. Hope you get it figured out soon. Take care and keep at it.!
I would have fitted a mechanical gauge and spun the engine over without plugs to see if I get oil pressure. The next check is a stuck pressure relief valve. Even a badly worn pump will give some pressure.
I really don’t think it’s your oil pump.. It’s probably some other little irritating issue that you will need to find.. It’s like chasing Casper the friendly ghost around in a closet, (Good Luck finding it..) I’m sure you will get it figured out, it will just take some time.. Great video as always Matt.. Keep your head up.. You got this!!! Can’t wait to see your 150 back in the air!!!! What a beautiful plane you have!!!
If the gauge is all mechanical, I would check the tube between the engine port and gauge for a pinch and try screwing in a known good pressure gauge directly to the engine port and checking. That oil pump sure looked dry - pickup tube?
Don't get discouraged probably just was airlocked or something silly. Little visual for the youngin two pieces of loose leaf paper is= aprox 0.008".
It’s got oil pressure. Hydraulic lifters would be making lots of noise if it didn’t
Yup
I wasn't sure whether it had solid or hydraulic lifters.
Probably not the oil pump. Squirt oil in the oil line going to the oil pressure gauge. Might need WD-40 even it drained out while being down. Air in that line your engine is fine .
Just saw the same issue on another plane that has been sitting. Used an oil can to squirt oil in the line toward the gauge, then down to the pump. Did the trick!
I agree, I've seen zero oil pressure at times like this. I was reluctant to shoot oil down cylinders, but bam. 60 psi in a few seconds. Sometimes the old tricks have stuck around because they work.
leave your # and i can call you on Tuesday !
If in doubt that there is oil on wearing surfaces before a third and possibly dry start, maybe ask authorised mechanics about overfilling the engine case with oil to prelube the wearing surfaces, draining then filling to correct level, turning over with plugs removed to be sure there is no hydrolocking before restarting.
ua-cam.com/video/GX-Hqk9nZ3s/v-deo.html
I hate to ask a stupid question but did you put a dry oil filter on it and see if it filled with oil?
How long have you been an A&P?
Did the line to the gauge get a kink? As others say see if the pump sends oil to the gauge. And since you have the gauge lose to do that, see if the gauge indicates with an application of pressure.
Bummer. Pump gears look decent enough to me. I've seen some scored up ones that still pumped pretty good too. How did the engine sound? Was there oil in the pump when you took it apart? Was the engine getting kinda rattly? If not maybe it is just the gauge.
But . . . .
It looks good!!!!
👍☑ sorry Ron but I can't agree with you on that, I think it looks fantastic!
No pressure or is it that gauge?
I'm not familiar with your engine but I wonder if you need to prime the pump for the first start, the vertical lift is a significant distance judging from the pick up tube. I have had manuals suggest to pack the pump with Vaseline to create suction. You might also be able to back prime the pump from the oil filter. Anyone who's been around pumps knows that style make horrible compressors and worse vacuums.
👍☑Matt you obviously dont know your plane well, just fill it up with CORN OIL and it will do great! LOL Seriously that sucks but we know that you guys will have it resolved in no time!