DLE 35RA Muffler bolts

[wfahey415]

Thanks for the input guys. I flew the YAK today and didn't have any issues with the muffler. I will run by Auto Zone and get the Copper RTV and brake cleaner to try on the 35RA.

 

[AKNick]

Curious to see how everybody's various muffler securing methods have been working out for the DLE35RA and the stock muff.
Mine hasn't come loose after about 3-4 gallons more by ditching the gasket and using Red RTV, clean bolts, and with Nordlock washers as previously mentioned.

 

[wfahey415]

I switched to the copper RTV on my 50cc planes and that appears to be working well so I did the same with my 35ra and put it on a Pilot Extra 330 this week. If the weather holds, I will test it out on Saturday.

 

[AKNick]

Copper RTV on the muff and bolt threads yah? Seems like that has been a easy, working, readily available alternative to nordlocks, and locktite. I think we all agreed that cleaning the bolt threads and casting threads prior to RTV, locktite, or nordlocks have been the way to go.

 

[3dNater]

Mine is continuing to work great with the ultra copper rtv as well.

 

[Rubbernecker]

I know this is an old thread, but it seems the problem is with the convex shoulder on the bolt. I went to True Value and got same size bolts without the shoulder. I then made a bott bit (a mill bit would do the same) and cut away the convex portion of the muffler so it would be a clean 90 degree shoulder. That with the nordlocks, and my muffler has not moved in 3 gallons of fuel.

John