ORIGINAL: JohnBuckner
In your picture what you are pointing to with the arrow is indeed what holds the carb in position. It is a tapered jam bolt inserted from the opposite side and it jams aginst a flat on the carb boss.
To resecure it you must loosen the jam bolt by tapping it back after loosening the lock nut several turns and when the carb can be rotated free it is positioned correctly then holding it hard into the engine so the o ring is compressed while that nut is tightened If that jam bolt threads are stripped it will need to be replaced.
Expecting it to 'suck' in is just wishful thinking.
If you are using a 72 Mhz radio system and using a z bend in a metal throttle arm then that is is an exceedingly bad idea and just like lighting a very long fuse on a stick of dynamite under your airplane. I don,t care how many voted to use a z bend, Bad ideas don,t listen to voters anymore than politions do.
If you are using a 2.4 system then its still a bad idea since you are now the chief flight test engineer on vibration induced RF interferance with 2.4 systems.
John
I apologise for my incompetence, but when you are refering to,
"To resecure it you must loosen the jam bolt by tapping it back after loosening the lock nut several turns and when the carb can be rotated free it is positioned correctly then holding it hard into the engine so the o ring is compressed while that nut is tightened If that jam bolt threads are stripped it will need to be replaced."
There is no nut. The carburator slides into it's socket and then has two bolts which from each direction bolts down the carb. Maybe I'm just misunderstanding you. This link is an exploded view of the 61 OS, but the ASPs carb which I'm talking about now, works on the same principle
http://downloads.hobbico.com/evpl/osm/ev17750aa.pdf (have a look at the right of the page). I know my 75 has one bolt which gets tighten into a nut where you have to press the carb tightly and start tightening the nut that it can compress the o ring. I don't know - I'm missing something.
Oh and I'm on 2.4 thats why I feel FAIRLY safe to use a Z bend. But I know in the end I'm going to go with EZ connections anyway - give me two days
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