goneflyin

My Feedback: (1)

Hello All,

I have a Thunder Tiger 46, it just does not behave right. When I initally start it up, it sputters fuel out the muffler and quits. Then it will run fine. Once I land the plane however, I have to put my finger over the muffer to get the engine to quit. I have made sure the carb is sitting properly and that the throttle is completely closed. It would be nice to correct this problem. I have had other TT 46 engines without this problem.

If anyone has any hints, it would be great!!!

Thanks.

w8ye

My Feedback: (16)

Sounds like a crankcase air leak. It may be under the carb, through the front bearing, or at the backplate?

Enjoy,

Jim

proptop

My Feedback: (8)

It sounds like you might need to lean the idle mixture a bit, and there might be a slight air leak around the base of the carb.?

Loosen the carb retaining "pinch" bolt and push down hard on the carb to be sure the O-ring is doing it's job, then re-tighten the pinch bolt. On one, I had to use a little RTV around the pinch bolt and smeared a little on the o-ring too.

edit: Yes...do check the backplate bolts too...
I have had a few TT's that didn't have all of the bolts quite tight enough. Just snug 'em up good...don't over do it though.
I had one that had every-other head bolt loose?! Came new that way...

goneflyin

My Feedback: (1)

What is RTV?

Cyclic Hardover

My Feedback: (3)

Did you adjust anything or just start it up?

proptop

My Feedback: (8)

RTV= Room Temperature Vulcanizing or otherwise known as Silicone...

The .46 Pro I have on my SA Seamonster would not shut off, even with the throttle barrel completely closed. I removed the carb and pinch bolt, and swabbed the case opening w/ q-tips dipped in Acetone, and did the same w/ the bolt and carb neck.
A little schmeer of RTV and it works like it's supposed to now...