Just take out the plugs and let it sit for a while. If the engine has low compression or low compression with the oil washed off of everything, a shot of engine oil in each housing will help with heat of compression or WD-40.

OK; the shot of oil is intuitive – and I'd think perhaps you'd want a shot in each 'chamber'. 

 

I never tried that but it wouldn't hurt. Lots of smoke...............

In winter I have used several shots (from a pump style oil can) of engine oil and 1/2 cup of hot coffee in each housing.

What does the hot coffee (basically water) do?  I'd think it would just foul the plugs.

Al G.

 

Adds a bit of heat, and takes up volume, raising the compression ratio. unsticks the apex seals. The rotary acts like a piston engine with w 4 1/2" piston and one 14" long compression ring with 4 end gaps. So extra heat of compression can keep a bit of the fuel in vapor form.

It will burn as droplets but too slow to spin the engine. Like a diesel needing glow plugs in the intake and in some cases, glow plugs in the head to heat the air, or you get no start.

 

In olden times just a constant stream of WD-40 would keep it running until it got some heat in it. The newer safe formula is much safer.

 

They leak compression fast as they go into compression, so, the cranking speed must be high. All of this is for winter time. This is more a problem (flooding and wetting the plugs) in the Renesis than other types. There were several reburns on the controller trying to solve this. Too many new cars being towed to the dealer for no starts in sunny California. Duh.......... With the periphery exhaust port, one complete revolution dumped the excess fuel, and a few more revolutions at full throttle, dried the plugs. In the Renesis, the excess fuel is wiped over the plugs again and again.

 

Try wide open throttle and no injection at all for a bit to try to dry the plugs. Done with the brakes manned.

I build with zero end gap on a fresh engine. Starts are instant. Even when cold........even with the battery down.

 

They used to have two side seals and 6MM apex seals. They used to spray in antifreeze from a bottle on the firewall, when cranking in cold weather to unstick the apex seals when frost would glue them in the bottom of the groove.

 

Lynn E. Hanover

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