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  #21  
Old 02-16-2015, 10:36 AM
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LifeofReiley LifeofReiley is offline
 
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Quote:
Originally Posted by jrs14855 View Post
Many of the earlier Lycoming's had a oil pickup that was a tube assembly that bolted to the accessory case. IIRC the screen assembly was installed vertically in the bottom of the sump near the center. Large hex retainer in the bottom of the sump, much larger than the current horizontal oil screens.
Yes... that would be correct. I've had a couple with this set-up.
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  #22  
Old 02-16-2015, 11:57 AM
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Default Magneto sketch and oil analysis

This is where we will looking very close:


And the oil analysis (sorry, in french language):


It was a NEW engine and NEW magnetos, assembled by Mattituck in Long Island NY. 2 or 3 Years ago.

Thats it for the moment, I will post more when we found the root, thanks!
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Last edited by swisseagle : 02-16-2015 at 12:04 PM.
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  #23  
Old 02-16-2015, 01:24 PM
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Just another data point. I have installed hundreds of cotter pins as many of us have. Last year I was safetying something, cant even remember, and the cotter pin snapped a leg off. It was obvious in the break that crystalization had occurred at this one point only.
I am not sure how to test for this other than hope when you bend it over, it breaks.
Not implying anything was wrong with the cotter pin here, but....
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  #24  
Old 02-16-2015, 06:14 PM
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FYI, There are two oil sump and oil pick ups used on the O-320. There is a style that is the same as a O-235 sump and has a pick up that uses cotter pined nuts to hold the pick up onto the accessory housing. Most common O-320 with this setup is the O-320-E2G. This type services a internal non removable suction screen through a large cap located just forward of the carburetor mount. The majority of the O-320's and all O-360's use the type that has a pick up galley in the sump with a suction screen under a cap at the rear of the sump.
Good Luck,
Mahlon
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  #25  
Old 02-16-2015, 07:46 PM
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Thanks Mahlon for the Real Info... as always.
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  #26  
Old 02-18-2015, 08:44 AM
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Default Added Security!!!

... One of these would have collected the piece, and any other steel debris from possible collateral damage if existent. These will collect steel particles in suspension that are so small, you cant see or detect them. Very inexpensive added insurance.Thanks, Allan...
.
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  #27  
Old 02-18-2015, 09:27 AM
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Quote:
Originally Posted by mahlon_r View Post
FYI, There are two oil sump and oil pick ups used on the O-320. There is a style that is the same as a O-235 sump and has a pick up that uses cotter pined nuts to hold the pick up onto the accessory housing. Most common O-320 with this setup is the O-320-E2G. This type services a internal non removable suction screen through a large cap located just forward of the carburetor mount. The majority of the O-320's and all O-360's use the type that has a pick up galley in the sump with a suction screen under a cap at the rear of the sump.
Good Luck,
Mahlon
Here is a picture of the accessory case from my old O-290-d2 with the pickup tube in place. (This accessory case was replaced with one machined for a fuel pump.)
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  #28  
Old 02-18-2015, 09:36 AM
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Quote:
Originally Posted by PerfTech View Post
... One of these would have collected the piece, and any other steel debris from possible collateral damage if existent. These will collect steel particles in suspension that are so small, you cant see or detect them. Very inexpensive added insurance.Thanks, Allan...
.
Sorry for the thread drift, but personally, I don't need another maintenance item. This also has the potential for a false sense of security and could lead to a disaster if the owner or mechanic was not aware the device existed, like if you sold the plane, or your mechanic was not aware of the device. The average mechanic isn't going to know what this discreet looking plug even is.
The screen did it's job. I prefer to find my metal the old fashioned way, in my filter, with my magnet and magnifier... but that is just me....
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  #29  
Old 02-18-2015, 10:27 AM
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Quote:
Originally Posted by JonJay View Post
Sorry for the thread drift, but personally, I don't need another maintenance item. This also has the potential for a false sense of security and could lead to a disaster if the owner or mechanic was not aware the device existed, like if you sold the plane, or your mechanic was not aware of the device. The average mechanic isn't going to know what this discreet looking plug even is.
The screen did it's job. I prefer to find my metal the old fashioned way, in my filter, with my magnet and magnifier... but that is just me....
...An oil drain plug is not a maintenance item, and one would like to think anyone changing the oil would poses the intelligence to wipe off the drain plug before re-installing it. The oil screen will stop large debris, but doe's nothing to impede small particles that can destroy an engine prematurely. These particles you troll for in the oil filter, have already been through the oil pump and done their damage to the pump in doing so. I prefer to collect my particles prior to them racing around, permanently damaging engine components and bearings inside my engines...but that is just me... Thanks, Allan
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  #30  
Old 02-18-2015, 11:13 AM
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P-Mags also use a Cotter Pin, and with regard to:
Quote:
vote for the magneto gear cotter pin since that is the most likely one to have been installed by a person who isn't an engine assembler...
yes! P-Mag advise you pull the P-Mag each annual to check the gear / drive, so add the pin to something to check.

For some reason the P-Mag pins seem very long - I took advice on a more suitable pin when replacing it.
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