belize1334
Well-known member
Maybe this is old news, but it's new to me.
I've known for a while that one of the main reasons that 14b's and especially 16g's creep is that the wg flapper doesn't open far enough (total of less than 45 degrees keeps it in the way of the exhaust stream). Common opinion has it that this is because the wg actuator doesn't throw far enough and there's even a mod you can do to make the wg actuator arm travel farther. I just had my exhaust housing off to switch o2 housings and I discovered another issue. On mine the wg arm itself COULDN'T open past about 45 degrees because it was getting hung up on a ridge on the outside of the housing itself. I ground down the ridge a bit to allow it to travel farther but since I also put on a tubular o2 housing, I can't be sure which (if either) affects the creep issue. My thought is that maybe even the stock wg-actuator would throw farther if the arm wasn't getting caught up on the housing.
So, if anybody wants to try this experiment, here it goes. If you have a 16g that creeps, disconnect the actuator arm and see if the wg arm gets caught up on the housing as it swings. If so, either grind down the housing a bit so that it clears, or bend the lever arm out a little so that it isn't so close to the housing. Once you're satisfied that it swings freely w/o ever getting caught, reconnect the actuator and test it out. Report back here with your results.
I've known for a while that one of the main reasons that 14b's and especially 16g's creep is that the wg flapper doesn't open far enough (total of less than 45 degrees keeps it in the way of the exhaust stream). Common opinion has it that this is because the wg actuator doesn't throw far enough and there's even a mod you can do to make the wg actuator arm travel farther. I just had my exhaust housing off to switch o2 housings and I discovered another issue. On mine the wg arm itself COULDN'T open past about 45 degrees because it was getting hung up on a ridge on the outside of the housing itself. I ground down the ridge a bit to allow it to travel farther but since I also put on a tubular o2 housing, I can't be sure which (if either) affects the creep issue. My thought is that maybe even the stock wg-actuator would throw farther if the arm wasn't getting caught up on the housing.
So, if anybody wants to try this experiment, here it goes. If you have a 16g that creeps, disconnect the actuator arm and see if the wg arm gets caught up on the housing as it swings. If so, either grind down the housing a bit so that it clears, or bend the lever arm out a little so that it isn't so close to the housing. Once you're satisfied that it swings freely w/o ever getting caught, reconnect the actuator and test it out. Report back here with your results.