break in bench noise solution
#1
break in bench noise solution
I read on a thread to put a exhaust pipe silicone extender onto the tip of the pipe and put that into a bucket of water to lower the noise level of the break in bench. Does anyone see an issue that this would cause? It sounds like a good idea and If there is no issue there then I will probably try it.
#3
It is done a lot on toyfairs but with a brake in stand and a proppellor it is the prop making noise......
#4
I sure wish their was a quiter way to break engines in.. i love using my prop stand but my neighbors aren't overly fond !
#5
Suspended
possible moisture in engine? try a plumbers vacume breaker or your engine could sound like its a yamaha ha ha cheers!
#6
you ain't kidding about the noise i had to do two motors over two days i thought somebody was going to kill me with all the noise i was making....
#7
Suspended
noise
i have seen chamebers used after the pipe that reduce noise and no water nesasary i believe they are in all jet ski personal water craft made out of pvc and fiber glass whithout added back pressure! cheers
#8
#9
Tech Master
iTrader: (4)
I've seen this done at wintrnats!
get every thing ready to break in start the motor and get things running
pipe and all !
Then place a two liter plastic coke bottle up to the pipe mark for a hole for the pipe to insert into the coke bottle and remove the lid to the coke bottle and this quiet's it down greatly !
later
Jeff E
I guess it works like a ext to the pipe!
get every thing ready to break in start the motor and get things running
pipe and all !
Then place a two liter plastic coke bottle up to the pipe mark for a hole for the pipe to insert into the coke bottle and remove the lid to the coke bottle and this quiet's it down greatly !
later
Jeff E
I guess it works like a ext to the pipe!
#10
I've seen this done at wintrnats!
get every thing ready to break in start the motor and get things running
pipe and all !
Then place a two liter plastic coke bottle up to the pipe mark for a hole for the pipe to insert into the coke bottle and remove the lid to the coke bottle and this quiet's it down greatly !
later
Jeff E
I guess it works like a ext to the pipe!
get every thing ready to break in start the motor and get things running
pipe and all !
Then place a two liter plastic coke bottle up to the pipe mark for a hole for the pipe to insert into the coke bottle and remove the lid to the coke bottle and this quiet's it down greatly !
later
Jeff E
I guess it works like a ext to the pipe!
You got my curiousty!
Do you mean insert the stinger from the pipe into the coke bottle? I want to try this!
#12
I've seen this done at wintrnats!
get every thing ready to break in start the motor and get things running
pipe and all !
Then place a two liter plastic coke bottle up to the pipe mark for a hole for the pipe to insert into the coke bottle and remove the lid to the coke bottle and this quiet's it down greatly !
later
Jeff E
I guess it works like a ext to the pipe!
get every thing ready to break in start the motor and get things running
pipe and all !
Then place a two liter plastic coke bottle up to the pipe mark for a hole for the pipe to insert into the coke bottle and remove the lid to the coke bottle and this quiet's it down greatly !
later
Jeff E
I guess it works like a ext to the pipe!
curious, i had assumed the primary noise source was intake roar. So did you notice what they did for the intake side? was there an INS box or?
#13
it occurs to me an added benefit of the coke bottle is it collects the large amount fuel and oil that spews from the exhaust.
#14
intake
I dont believe there is much that can be done on the intake side, due to the propeller coming so close to the carb. I was concerned about that with regards to debris getting into the engine, but I have been using the break-in bench for about 3 years and never had any problems.
#15
Tech Elite
iTrader: (89)
I dont believe there is much that can be done on the intake side, due to the propeller coming so close to the carb. I was concerned about that with regards to debris getting into the engine, but I have been using the break-in bench for about 3 years and never had any problems.
I use an air filter off of my 2.5 Tmaxx it has just enogh clearence not to hit the prop. I had to cut a notch in the prop cover . I just can't run an 500.00 engine with no filter. The 2.5 tmaxx filter has a very short 45 degree angle