Fuel Leak!!

[Al M]

I was hovering my T Rex 600, and it went through a tankful mega quickly!! It seems I have a fuel leak. I reckon it is coming from the base plate, as one of the 4 screw holes is stripped - so when screwing it up, it only bites and no more. Is this a likely place for a fuel leak? The other 3 screws are solid!

So, any idea how to fix this? My first thoughts are epoxy down the hole, bolt it up and let the epoxy set - would this hold the screw in and seal the leak? Or is it a drill and tap job? Or even a new engine? Any advice welcome!! It is an Align 50 size engine, with the blue head. At one point the fuel was dripping a fair bit, a constant drip - it seemed an awful lot when the engine was off, cool and hadn't been used. Is there anywhere else these engines have a reputation for leaking / or I should be checking? I am thinking about putting in a new engine, and stripping and refurbing this one as a learning exercise and therefore having a spare. Keeps my downtime to a minimum. Many thanks in advance for any advice or ideas!

[pgkevet]

Before doing anything radical to the crankcase try just using a longer bolt on that base plate..it may give enough bite and still tighten down.
Leakage there might also imply poor gasket or excessive crankcase pressure... so if the new bolt looks like it will hold then time to strip that engine down and check piston,liner,ring and bearing.

The other obvious stuff like leaky tank and lines and exhausts and tunign may be adding to your fuel loss/use..

[paul35]

If you do need a new crankcase i've got one that i cooked last year that you can have,just put new bearings in and swap the stuff over from yours.