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Any tricks to pulling oil screen on IO-360?


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5 hours ago, HRM said:

Excellent vids...I feel ready to do this. Some quick questions:

  1. The one R&R'd had wires for the 'pre-heater'. Do most of them not have that? Is it just a drilled 5/8" bolt?
  2. Does it need a new washer when it is replaced? If so, do you have a P/N?

TIA,

Harley

The gasket in an MS35769-21, replace each time, split in the copper goes against the engine.

Clarence

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3 hours ago, M20Doc said:

The gasket in an MS35769-21, replace each time, split in the copper goes against the engine.

Clarence

Thanks! Many places to buy...Spruce, SkyGeek, etc.

813755547_CrushGasketforOilScreen.png.65e781085341a70bf138e2761860a2d1.png

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16 minutes ago, DualRatedFlyer said:

Why? What is the purpose of the split?

It's the 'crush' in 'crush gasket'. It seals the part against any irregularities between the sealing surfaces. Copper is soft, and the original hight-heat resistant material.

Remember, 'one drop of oil can coat a plane'.

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On 5/29/2018 at 4:17 PM, N201MKTurbo said:

I'm not saying that I'm going to stop pulling it at annual, but so far everyone has said that whenever they find stuff on the suction screen they also found stuff in the filter or pressure screen. 

So, I'll rephrase my question. 

Has anybody ever found something on the suction screen and didn't also find something in the filter?

A few years back, I saw hardly any metal in the oil filter, but this is what I found in the screen... I was suffering from low oil pressure... So the answer is yes, it is possible. :)

 

20150518_173307.jpg

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28 minutes ago, dmevans said:

A few years back, I saw hardly any metal in the oil filter, but this is what I found in the screen... I was suffering from low oil pressure... So the answer is yes, it is possible. :)

20150518_173307.jpg

WOW, those are big enough to have serial numbers

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2 hours ago, dmevans said:

A few years back, I saw hardly any metal in the oil filter, but this is what I found in the screen... I was suffering from low oil pressure... So the answer is yes, it is possible. :)

 

 

20150518_173307.jpg

How badly were the tappets spalled?

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7 minutes ago, bradp said:

Don't know if this has been mentioned before but the hand safety screwdriver style twister would be perfectly suited for this task...

 

https://www.yardstore.com/hand-tools/safety-wire-and-pliers/safety-wire-tools/safety-wire-twister-combo-includes-6-18-tool

Fifth  post in the thread.

Edited by N201MKTurbo
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4 hours ago, mike_elliott said:

How badly were the tappets spalled?

If I remember correctly, I think 2 tappets had been been cracked. My engine case was jacked up too. No matter how bloody my knuckles, I will be changing the screen at EVERY oil change. Lol. Here's a couple more photos...

20150518_173352.jpg

IMG_20150518_174315:nopm:.jpg

IMG_20150518_174405:nopm:.jpg

IMG_20150518_174614:nopm:.jpg

Edited by dmevans
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1 hour ago, dmevans said:

If I remember correctly, I think 2 tappets had been been cracked. My engine case was jacked up too. No matter how bloody my knuckles, I will be changing the screen at EVERY oil change. Lol. Here's a couple more photos...

20150518_173352.jpg

IMG_20150518_174315:nopm:.jpg

IMG_20150518_174405:nopm:.jpg

IMG_20150518_174614:nopm:.jpg

Wow!

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5 hours ago, dmevans said:

Here's a couple more photos...

I GREATLY appreciate the close-up of the plug with the crush washer and the drilled head--I knew it looked like that, but didn't have a clear picture in my head until I saw your post.

The Lyc manual implies that you only pull that screen if there is no spin-on filter. Your discovery suggests an annual inspection of it.

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Don,  Dmevans mentioned two tappets... those are the things whose surfaces ride on the cam, that ultimately activate the valves via the push rods(?)

They have a tendency to get corroded surfaces similar to the cam surface...  the rough tappets running around on the rough cam lobe surface start cutting into each other...

I have seen the rough surfaced tappets in pics around here... but hadn’t seen one broken like this that I remember...

PP thoughts only, not a mechanic...

Best regards,

-a-

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  • 2 weeks later...
On 6/10/2018 at 10:48 PM, carusoam said:

Don,  Dmevans mentioned two tappets... those are the things whose surfaces ride on the cam, that ultimately activate the valves via the push rods(?)

They have a tendency to get corroded surfaces similar to the cam surface...  the rough tappets running around on the rough cam lobe surface start cutting into each other...

I have seen the rough surfaced tappets in pics around here... but hadn’t seen one broken like this that I remember...

PP thoughts only, not a mechanic...

Best regards,

-a-

Here are a few more pics of the engine after I tore it down... enjoy! :)

20151017_131512.jpg

20151017_131454.jpg

20151017_131448.jpg

20151017_131435.jpg

20151017_131424.jpg

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30 minutes ago, dmevans said:

Here are a few more pics of the engine after I tore it down... enjoy! :)

20151017_131512.jpg

20151017_131454.jpg

20151017_131448.jpg

20151017_131435.jpg

20151017_131424.jpg

It shows how tough these engines can be, all of that damage and it was still running.  I’m glad you caught it before it quit.

Clarence

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