Having a problem accurately locating mounting holes for a beam mounted Brillielli 46GT. Can't use my handy dandy Du-Bro hole locator because of lousy access and don't recall any of the other methods of hole location and math is not my bag
Any ideas
Thanks

I'm having a hard time picturing how you will drill the holes and install the bolts if you can't even get your centering tool in there.

I have had some success using T-pins to mark hole locations in tight areas. Maybe you could wrap four T-pins in enough tape to hold them in your engine holes, then press the engine into place on the beams.

Hopefully you'll get better advice from someone else.

Good luck

Thanks for responding but once I can accurately locate where to drill the mounting holes it will be no problem mounting the engine. Just hold the engine up and equally run down the fasteners. There are engine cooling fins and other stuff in the way when the engine is sitting flush on the mount

Rub a little light oil or liquid soap on the mount. Hold (preferably clamp) the engine in place. Dust some powder into the bolt holes. Removce the engine without moving it around and you should have powder stuck to the mount where the bolts need to go.

Hi Carrell
That is one neat idea ! I'll give it a shot this weekend when I can work on models again
Thanks
Dave

Carrellh probably has the best solution! I mark holes in my steel work with spray paint, but the powder idea sounds better on a model engine. Thanks for the tip!

A foolproof way is to make a template. Use cardboard or any other stiff material. You can match the template to your engine to make sure it is correct then just use the template to locate the holes.