os 46 or tt 40 or tt 46 muffler from a dead engine

paladugu_sujith · September 14, 2014, 09:25:03 PM

Dear friends

I need 40-46 size muffler for aircraft engine. I lost threadings and its unusable .

Let me know if anyone has one from a dead engine. Will pay accordingly.

THank you

sanjayrai55 · September 14, 2014, 09:45:13 PM

Normally these are M3 threads. Drill out and retap with M4. Use M4 bolts

paladugu_sujith · September 15, 2014, 01:22:40 PM

yes.. but the m4s doesnt go thru the 40 engine . i dont want to drill on the engine.

sumit joshi · September 15, 2014, 09:41:39 PM

instead of buying you can get it casted from local foundry worker and then after get it machined accordingly . this would be more economic.

Rcjabalpur · September 15, 2014, 09:50:34 PM

I bought it from tower paid like 1200-1300 bucks i dont remember now

Though go to a 'dhalai vala' for once they will help you out

sumit joshi · September 15, 2014, 09:54:19 PM

actually i m going to cast one for myself next month . so if you have that much time i can get it done for you in my foundry shop.

laxmansuthar · September 16, 2014, 11:39:07 AM

dear,

why are u waste the money..? you just buy M3x50 long Alan screw with lock nut
put the screw from engine side & tighten The lock nut from Muffler side...just fixed..

regards
laxman

paladugu_sujith · September 16, 2014, 10:57:49 PM

lock nut is the problem. its not getting on thru the threads.. not even any nut.

sbajare · September 17, 2014, 09:59:42 AM

I have a spare 46ax silencer, but one side is damaged. the threading can be fixed by using helicoil. I have done it for a friend

paladugu_sujith · September 17, 2014, 10:27:40 AM

side damage?? threading??

sbajare · September 17, 2014, 02:47:06 PM

confused, the one I have is damaged.

yours can be repaired by using helicoil.