Original Posted By: "Ignitor"
Subject: Re: Pietenpol-List: Cotton Rows & Corky>>Mike,>All I asked was whether I could use a little "down on the bayou" 190 proofto>fill my airpath. This thing has gone beyond city limits, the Pieters arenow>telling me how to read a compass and/or flying by hind sight. I think I'll>just leave it half full and GO.>Corky down on the bayou in La>>________________________________________________________________________________
Re: Pietenpol-List: Have you driven a Continental, Lately ? "Pietenpol-List
Re: Pietenpol-List: Have you driven a Continental, Lately ? "Pietenpol-List
Original Posted By: "Michael D Cuy"
Mike C., It's times like this that I thank my lucky stars that I have the Mentorthat I have for so many years... I find myself listening to him in awe,like a 5 year old listens to his father on how to bait a hook, or how tosharpen a knife. OOps, sorry to ramble.Two years ago when I was rebuilding my A65, my mentor told me aboutchecking the "lifter clearance". Never heard of it. He explained that youhave to be in the range of the lifter for it to work. If you look in theContinental manual, it gives you a range that is acceptible.( something like.030-.120)He told me that this is something that most AP's don't do, and it can meanthe difference between a strong engine and a puny engine. Said that one guyburnt two valves in just a few hours due to this.You have to be able to compress the lifter, which means the the oil has tobe out of it, and the cylinder has to be assembled.Remove the lifter cover bracket, pull out each lifter, one at a time, twistit to pull it apart, spray it with cleaner to remove all oil, andreassemble. ( don't mix up lifter parts or the holes they go in). Once youget a pair complete, assemble the cyl. and rockers, and valves.Push down on the rocker on the push rod side till the lifter bottoms,,,,nowfeeler guage the gap between the rocker and the valve stem. That has to bewithin the range that the manual says. If its not right,,,you can grind thevalve stem, or get new pushrods, 010 or 020 etc off standard.I had to replace 6 pushrods. Not really a big deal, but the differencebetween good engine and punk one.If I didn't explain this right , or some one wants more infro. let me know.My mentor just bought a Cassut pylon racer, is pulling off the 65 hp Cont.and building a 100 hp to put on it. He's 80 years old, sharp as a tack, andfull of knowledge.He doesn't just talk about the things he's going to do, was up there theother day, and saw his cam, pistons, newly painted case, the engine he soldoff the Cassut. Anyone wants a pic of him in his "new Cassut Racer" let meknow, I'll send it to you.Ain't life grand?walt---------------------------------------------------------- Original Message -----
Mike C., It's times like this that I thank my lucky stars that I have the Mentorthat I have for so many years... I find myself listening to him in awe,like a 5 year old listens to his father on how to bait a hook, or how tosharpen a knife. OOps, sorry to ramble.Two years ago when I was rebuilding my A65, my mentor told me aboutchecking the "lifter clearance". Never heard of it. He explained that youhave to be in the range of the lifter for it to work. If you look in theContinental manual, it gives you a range that is acceptible.( something like.030-.120)He told me that this is something that most AP's don't do, and it can meanthe difference between a strong engine and a puny engine. Said that one guyburnt two valves in just a few hours due to this.You have to be able to compress the lifter, which means the the oil has tobe out of it, and the cylinder has to be assembled.Remove the lifter cover bracket, pull out each lifter, one at a time, twistit to pull it apart, spray it with cleaner to remove all oil, andreassemble. ( don't mix up lifter parts or the holes they go in). Once youget a pair complete, assemble the cyl. and rockers, and valves.Push down on the rocker on the push rod side till the lifter bottoms,,,,nowfeeler guage the gap between the rocker and the valve stem. That has to bewithin the range that the manual says. If its not right,,,you can grind thevalve stem, or get new pushrods, 010 or 020 etc off standard.I had to replace 6 pushrods. Not really a big deal, but the differencebetween good engine and punk one.If I didn't explain this right , or some one wants more infro. let me know.My mentor just bought a Cassut pylon racer, is pulling off the 65 hp Cont.and building a 100 hp to put on it. He's 80 years old, sharp as a tack, andfull of knowledge.He doesn't just talk about the things he's going to do, was up there theother day, and saw his cam, pistons, newly painted case, the engine he soldoff the Cassut. Anyone wants a pic of him in his "new Cassut Racer" let meknow, I'll send it to you.Ain't life grand?walt---------------------------------------------------------- Original Message -----
Re: Pietenpol-List: Cotton Rows & Corky
Original Posted By: "fishin"
Liquid doesn't expand as much as air. The diaphragm in back takes care ofthat. When you have an air bubble it expands so much that it will destroythe diaphragm and pump out the fluid.Nothing against your A&-IA but the FAA will not let him legally refill acompass. They haven't the proper training nor knowledge according to theFAA. ----- Original Message -----
Liquid doesn't expand as much as air. The diaphragm in back takes care ofthat. When you have an air bubble it expands so much that it will destroythe diaphragm and pump out the fluid.Nothing against your A&-IA but the FAA will not let him legally refill acompass. They haven't the proper training nor knowledge according to theFAA. ----- Original Message -----
Pietenpol-List: Have you driven a Continental, Lately ?
Original Posted By: "Cy Galley"
Before you pull those cylinders, you might want to try 'staking' the exhaustvalves, also. This involves simply pulling the valve covers and removing theexhaust rockers, disconnecting the plug wires, removing the top plugs (makesure the cylinder is at bottom dead center) and hooking up an air source,ala compressor, to the cylinder (we used to use our compression testerfitting) with about 80 lbs. of air pressure. Then simply strike the valvestem with a hammer (plastic or leather head) a few times. This will knockthe carbon off the valve face.You should really find out what the differential compression is on thosecylinders before ya pull 'em. When you put the compression tester on thecylinder and hold the prop at TDC, you should hear the hissing from theexhaust pipe if it's indeed an exhaust valve. If you pull the oil dipstickit's rings. In that case remove the top plug (leaving the bottom one in) andfill the cylinder with Marvel Mystery oil and let it soak for a few hours oras long as you can stand it, then pull the bottom plug and drain the Mysteryoil. Install your plugs and give the engine a good run up and then checkyour compression again. We used to be able to bring cylinders with readingsin the low 50's and leaking past the rings back up to the 70's and the samewith staking the valves. I gotta tell ya, if you're running 100LL, you'regonna carbon up the valves and lead up the plugs. And although it's not'legal' in certificated aircraft, I know a lot of folks adding Mavel totheir gas per the instructions on the can each time they fill up and they'renot having the carbon build up or lead fouling half as bad as those whodon't.Chris HouseStill smilin'Subject: Pietenpol-List: Have you driven a Continental, Lately ?"Pietenpol-List Digest Server" John, fellow Pietenpolers------After only 198hours I gotta pull two cyls.> >this> week on my Cont. 65. I have two leaking past the exhaust valves and can> hear it hissing out the exhaust pipe when I pull the prop thru> slowly. (and feel> little resistance on those two jugs. Put the best parts in I could find> too-----but> of mice and airplanes- a constant battle for the one you love. Errr,the> thing you> love I guess. Keep at it John !>> Mike C.>________________________________________________________________________________
Before you pull those cylinders, you might want to try 'staking' the exhaustvalves, also. This involves simply pulling the valve covers and removing theexhaust rockers, disconnecting the plug wires, removing the top plugs (makesure the cylinder is at bottom dead center) and hooking up an air source,ala compressor, to the cylinder (we used to use our compression testerfitting) with about 80 lbs. of air pressure. Then simply strike the valvestem with a hammer (plastic or leather head) a few times. This will knockthe carbon off the valve face.You should really find out what the differential compression is on thosecylinders before ya pull 'em. When you put the compression tester on thecylinder and hold the prop at TDC, you should hear the hissing from theexhaust pipe if it's indeed an exhaust valve. If you pull the oil dipstickit's rings. In that case remove the top plug (leaving the bottom one in) andfill the cylinder with Marvel Mystery oil and let it soak for a few hours oras long as you can stand it, then pull the bottom plug and drain the Mysteryoil. Install your plugs and give the engine a good run up and then checkyour compression again. We used to be able to bring cylinders with readingsin the low 50's and leaking past the rings back up to the 70's and the samewith staking the valves. I gotta tell ya, if you're running 100LL, you'regonna carbon up the valves and lead up the plugs. And although it's not'legal' in certificated aircraft, I know a lot of folks adding Mavel totheir gas per the instructions on the can each time they fill up and they'renot having the carbon build up or lead fouling half as bad as those whodon't.Chris HouseStill smilin'Subject: Pietenpol-List: Have you driven a Continental, Lately ?"Pietenpol-List Digest Server" John, fellow Pietenpolers------After only 198hours I gotta pull two cyls.> >this> week on my Cont. 65. I have two leaking past the exhaust valves and can> hear it hissing out the exhaust pipe when I pull the prop thru> slowly. (and feel> little resistance on those two jugs. Put the best parts in I could find> too-----but> of mice and airplanes- a constant battle for the one you love. Errr,the> thing you> love I guess. Keep at it John !>> Mike C.>________________________________________________________________________________
Re: Pietenpol-List: Have you driven a Continental, Lately ?
Original Posted By: "Ignitor"
Great advise. One more, if you hear hissing at the carb it is the intakevalve leaking.Cy Galley, TC - Chair, Emergency Aircraft Repair, Oshkosh----- Original Message -----
Great advise. One more, if you hear hissing at the carb it is the intakevalve leaking.Cy Galley, TC - Chair, Emergency Aircraft Repair, Oshkosh----- Original Message -----
Pietenpol-List: Have you driven a Continental, Lately ?
Original Posted By: Christian Bobka
Re: Pietenpol-List: Have you driven a Continental, Lately ?
Original Posted By: Christian Bobka