carby ice.

[Darrell Jones]

Heh Tony, don"t be sorry, you gave a lot of good info, SU carbies are great, once you have the correct fuel / air ratio for the engine then the fuel burn is spot on. Also by using what"s called a colour tune, this is a glass spark plug, which allows you to see the colour of the flame inside the cylinder, then you have it right. Sometimes you need to change the needle to achieve

[Brian]

G"day Chopper, How about some close ups of your carb heat system.If photos dont appear, keep prodding as lots going on but set up is basically the two carbs ARE CONNECTED VIA SCAT HOSE TO A PIPE LIKE CHAMBER... [ disregard upper case, hit the worng button

[aussie_paul]

well in there in some parts is my confusion, written by others, but that copy turned into a pile of sh1yt obviously, so if needed it could be deleted by some one,cause I never wanted to copy it like that. once again sorry for any inconvience.

[Darrell Jones]

Thanks Brian, your set up

[tonydenton]

thanks for being patient guys,i believe my carby heat is all that is needed, all sorted. thank you.

[Brian]

Thing is that all engines have difernt making ice capabilites doesnt matter you have two difernt makes of turboed engines cuae the carbs can be a difernt set.There are 3 main carby heat systems that I have seen. 1 is Rosco"s which is very well made.

[MadMuz]

The thing to remember with carb heat systems is that you have to use them BEFORE you need them. Thats why in GA on aproach you pull on the carb heat, so if you have to go around for some reason, the carb is warm and ice free. If you didnt have the heat on in the descent, you may need to power up and all it does is coff or stop. The constant warm manifold is probably the best for our sort of flying.... what really speeds up icing is at smaller throttle openings (for cruise/landing in FW) luckily in a gyro, the throttle is nearly always open greater amounts than fixed wing aircraft.Full on carby ice can be like instant full on snow in the carby, or it can be as simple as the butterfly being jammed with hard ice (not like snow) or su and strombergs can be stuck open by ice in the needle valve (holding the piston open, closed or anywhere in between.... usually exactly where you dont need it at that particular instant)If you were on approach about to land and the throttle stays open (possible ice) you have to close the throttle (lever) even if the motor is still revving.... otherwise you might touch down and it goes full throttle (if thats where you left the lever).... if you are landing, the last thing you need is for it to spring back to life unexpectedly