Mailing List flyrotary@lancaironline.net Message #47481
From: Mike Wills <rv-4mike@cox.net>
Subject: Re: [FlyRotary] Re: latest problem
Date: Tue, 28 Jul 2009 21:04:13 -0700
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Thanks for the input Tracy. Wasnt entirely sure what I was going to use to seal this. Was thinking maybe Permatex #2 or Hylomar.
 
The problem is that Bruce did not install pipe plugs. These plugs are a straight thread like a set screw, not a tapered thread. They dont seal without some help. This is the second major oil leak I've had with the engine. It appears to me that it was the JB Weld, not the "plug" that was sealing the hole. The JB Weld held up for about 25 hours before it started leaking. When I ground it out, there was a pretty large void in one spot. This appears to be the failure point so maybe I could simply repot it and it would be OK.
 
Mike Wills
RV-4 N144MW
----- Original Message -----
Sent: Tuesday, July 28, 2009 7:30 AM
Subject: [FlyRotary] Re: latest problem

Just a reminder to be very careful when using sealant down-stream of the oil filter.  One of Chuck Dunlop's engine failures was traced to sealant (RTV type)  plugging one of the rotor oil cooling jets.

Tracy


On Tue, Jul 28, 2009 at 12:32 AM, Mike Wills <rv-4mike@cox.net> wrote:
Update. As several mentioned, there was a plug under the epoxy. It looks like the plug was installed dry- there was no sealant on it. There was a large void in the epoxy that was smeared over the plug and it appears this was where it was leaking from. So I'll use some gasket sealant and reinstall the plug and then repot it with epoxy and hopefully that will be the end of it. And on to the next problem, whatever it turns out to be.
 
Mike Wills
RV-4 N144MW
----- Original Message -----
Sent: Friday, July 24, 2009 6:35 AM
Subject: [FlyRotary] Re: latest problem

Mike;  Bruce built my short block also, aprox. 4 years ago, he has allen screw plugs in the holes & a drilled bypass internaly.  I'll photo the area ASAP & get it to you for refrence.  David R. Cook RV6A Rotary  Lansing MI.  (Oshkosh bound early Sat. morning, camping)                                                                                                                           
-


Sent:

My engine seems to be working really well since reseating the improperly seated B chip in the EC-2. I've run for a few hours and have not been able to force a re-occurance of the lost data problem. I'm cautiously optimistic.
 
I also appear to be jinxed. My engine has developed an oil leak. The engine was built by Bruce Turrentine and one of the mods he performed was to remove the stock oil filter pad. He didnt simply install a block off plate from Racing Beat though. He cut the pad off flush and plugged the remaining holes with what appears to be JB Weld. One of those plugs has suddenly started leaking. Not sure how best to fix this. Thinking the best approach is probably to remove the epoxy and tap for threaded plugs. But I'm afraid there may not be enough metal left to take a thread. Also afraid of dropping epoxy shavings down into the oil passage. I'm open to suggestions.
 
Man I'm tired of working on this thing. I want to fly it!
 
Mike Wills
RV-4 N144MW

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