Coned 200 Case drain plug solution?

[Sonik]

I dug around a little bit this morning and didn't find an answer to this so I'll bounce this off the gurus. I have installed an older straight leading-edge LWP cone on my 200 case. The area surrounding the drain plug on the cone, has a siginificant amount of built up material which, once smoothed and blended, leaves the drain plug countersunk fairly deep. For the guys not running sporty carriers with rear drains, what is your solution to filling this void that can be resilient enough to withstand high speed yet still be removed to allow access to the drainplug for oil changes???

[BUZZIN' DOZEN]

I ran a coned cle on my allison years ago, you could see where it kinda' burned the paint off after the hole, but didn't have any other ill effects

[Sonik]

Thanks Jeff.....I owe you a phone call as well.....didn't forget about ya!! :thumbsup:

[plasterer tim]

My cone was faired with epoxy then painted, then over the painted surface filled drain bung with auto body filler, idea bein that auto filler alone not water proof, wont stick to shiny paint, had it like that for three years, changed oil every 12mnths, when body filler was lookin like fallin out dig it out and do another, just a rough way to overcome the prob, iknow its not the best solution but you end up with smooth cone for waterflow and can still drain oil. Tim

[donmac]

install a new plug back farther in the bullet, you can buy a countersink tool to make it the same as original. did them this way for years.

[klem]

I did the body filler thing also, easy to clean out and the hole can be located using a magnet over the putty so you dig it out in the right place.

[Raceman]

I've used clear silicon in 'em. I've never done it on a 100+ MPH boat, but did on one that'd run 90's and it never gave any trouble, and it's MUCH easier to dig out/replace than polyester body filler would be.

[150aintenuff]

use 3M Black standard silicone sealant, not the adhesive sealant like 5200.. use a wet finger to blend and forget it... it will hold hard enough to stay inplace at well into the 90's

[camaro7081]

i got the unit done already ,a shop had a spacer welded around the oil screw , and then i use body filler in the hole . i use a dremel to remove filler to service unit. filler comes out nice and easy and doesnt mess up the pc7 and paint finish
110 mph and filler stays

[mrcrsr]

i've used black rtv sealant in the hole, as previously said, alot easier to get out then fillers, and mine was tested to 110(for long periods of time:smiletest:) w/ no issues

[XstreamVking]

:iagree::iagree::iagree: Black Silicone