Light oil mist on cowl and windshield m20f

[MooneyMitch]

Quote: AustinPynes

 He's great except for his choice of motorcycles.

[jetdriven]

i remember mine has a coat of epoxy in that area, i recall its about 4" long

 

 

[Parker_Woodruff]

Austin,

I sent you a PM.

[TonyPynes]

Quote: Mitch

 He's great except for his choice of motorcycles.

[MooneyMitch]

Of course, joking about HD's.  I do love that joke though. I do love HD's too!!

PM to you too.

[Shadrach]

If it were me, I would use

 3M Scotch-Weld 2216 Epoxy Adhesive Gray

http://apps.ellsworth.com/library/Library/TDS/en/TDS05952.pdf

http://apps.ellsworth.com/library/Library/MSDS/en/MSDS24207.pdf

I've had good success with it in areas that have been exposed to oil. It's more expensive than PRC but is supperior for the task at hand.

[MooneyMitch]

I love MooneySpace!!!

Happy flying everyone this w/e!  We are headed to EVR.  See some of you there.

Have Mooney will travel................

[Shadrach]

Quote: Mitch

 He's great except for his choice of motorcycles.

[Txbyker]

Tony, thanks for the info, I have been watching your thread as I too have developed a leak post annual and installation of a new crank seal.  I am going to go look in the area you indicated.

In regards to HD's I think we should perhaps borrow from the technology of the 40's Panheads and use the spent oil for something usefull like oiling the gear or something.  I get joy in the air from the Mooney and when I want to take the low slow route I ride the HD.  Both are great modes of transport.

[TonyPynes]

I will be riding my Road King to the Smoky Mountains this weekend.

 

And the technique we used to find the leak was clean engine completely, powder it with baby powder, run engine, shut down and look.

[MooneyMitch]

Tony, have a great ride to the Smokies.  I've been through there a couple of times and along the Bluerigde Pky. on the motorcycle.  Enjoy!

[TonyPynes]

I wanted to close out this post with an update on my oil leak.

Lou over at Flying Leaf was able to quickly identify and then seal the crankcase halves seal. There was a lot of loose bolts including an incorrectly torqued crankcase. Lou was able to tighten everything up and then seal the seam.

I took it for a test flight and saw some oil still make its way to the top of the cowling but after cleaning it up it was apparent it was residual oil - very dark and dirty. I flew it again and found a minute amounts around a seam which tells me we have won this battle. 

So for me it was a crankcase lower and front seam incorrectly torqued. Unfortunately I was also in the process of finding a mechanic I could work with so I spent over 1000 elsewhere before working with Lou and getting this taken care of.

Now on to the right wing fuel leak but that is another post.

[Hank]

Congratulations on getting it fixed, Tony! Now it's time to start enjoying your new ride!

[TonyPynes]

Quote: Hank

Congratulations on getting it fixed, Tony! Now it's time to start enjoying your new ride!

[ELT]

Austin,

Do you know how Lou sealed the seam?  Did he use any particular sealant?  I am looking inot using 3M 2216 on my leak.

 

[KSMooniac]

Good to hear!  I hate to possibly further rain on your parade, but did your new (good) mechanic check the cylinder bolts too?  If those weren't torqued properly/well, then there is a chance your bearings could have spun and blocked the oil holes for the crank.  There isn't really any way to inspect the bearings of course, but hopefully this hasn't or won't happen to you.

Good luck on the tank work too.  Check the easy stuff like the sender gaskets inside the plane first.

[TonyPynes]

Quote: ELT

Austin,

Do you know how Lou sealed the seam?  Did he use any particular sealant?  I am looking inot using 3M 2216 on my leak.

 

[TonyPynes]

Quote: KSMooniac

Good to hear!  I hate to possibly further rain on your parade, but did your new (good) mechanic check the cylinder bolts too?  If those weren't torqued properly/well, then there is a chance your bearings could have spun and blocked the oil holes for the crank.  There isn't really any way to inspect the bearings of course, but hopefully this hasn't or won't happen to you.

Good luck on the tank work too.  Check the easy stuff like the sender gaskets inside the plane first.

[Shadrach]

Quote: ELT

Austin,

Do you know how Lou sealed the seam?  Did he use any particular sealant?  I am looking inot using 3M 2216 on my leak.

[MooneyMitch]

Congratulations on getting the lead stopped.   That is just great news!

[lahso]

I second the sender gaskets. Had the same problem with the fuel smell, and that replacement fixed it.

[mooneym20d]

I had the same problem. New overhaul with oil spray. Originally thought it was the prop, but there was no oil flow on the blades. Turned out to be the front crank seal. Shop replaced it twice to no avail. The case opening for the flange was out of round and the repair was a new case. There was a slight vibration that a balance could not fix. That was caused by the out of round state of the case opening. If you're not getting a vibration, probably just need the seal reseated.

[jetdriven]

I wonder how an out of round front seal boss made it out of the overhaul shop. It would have to be hella out of round to leak.   Either they measured every dimension or they didn't.  That makes me wonder about everything else in your overhaul.   That's what you pay them 23k for, to get it right. 

[Seth]

Tony-

So glad to hear the leak has been taken care of.  I've been watching this thread for a while.  Must be a load of your shoulders. 

Take care,

-Seth

[mooneym20d]

They fixed the problem, originally. The logs said, measured .006 out of round". They also mentioned that when the case was disassembled prior to overhaul, the front case bolts were over torqued. I wasn't happy. I had only 130 hrs smoh and the engine was replaced. The shop covered the expense. This was on an M20A many years ago. Mute point now. Plane is still flying strong somewhere in TX.