Glow engine priming

Anyone know why a glow engine wouldn't be sucking fuel from the tank whilste priming? compression seems to have dropped slightly too actually thinking about it now
I presume there is an air leak around the carb somewhere, (Fuel tank and pipes are all fine!) -but not had a good chance to look yet, so any other suggestions of places to look to save time fannying about would be greatly appreciated!

Hiya Stubz, if the engine has sat a while without running dry the carbs nozzle can clog up not letting any fuel in. I see this quite a lot. Most car and heli nitros that are non runners usually just need the carbs needles taking out and blow some wd40 through the carbs inlet.
Give it a try.

In bad cases rinse out the tank and lines with meths but oil the engine or run it with some fuel after as the meths will wash the protective film of oil off

Dan is quite right about using WD40 but its generally not necessary to remove the slow running needle and hence saves loosing the setting. Put the aerosol nozzle tight up against the needle valve hole so full pressure is applied and remove the fuel line from the other side so the crud doesn't get blown back into the tank

A good crud hidyhole is the hole in the end of the clunk inside the tank btw. Reverse flushing with meths, or fresh fuel, will generally get it. Obviously it will need flushing out from the tank

Enjoy!

Thanks chaps- as I say, I've not had a good chance to look at it yet but hoping to tonight! Will give you the full diagnosis when its sorted!