can any1 tell me more?
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SBS 340 U
single deck air-con bus
bus service 242 from boon lay interchange. (feeder service bus)
this bus hor... the engine sounds like a turbo-charged engine sia...
any1 got take this bus b4???
1st time i hear such engine sounds from a bus...
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Time to put it in my targets.Originally posted by tetsumi:SBS 340 U
single deck air-con bus
bus service 242 from boon lay interchange. (feeder service bus)
this bus hor... the engine sounds like a turbo-charged engine sia...
any1 got take this bus b4???
1st time i hear such engine sounds from a bus... -
huh? wat targets?Originally posted by SBS9818A:Time to put it in my targets. -
time for maintenance.
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not maintenance lahz dude!Originally posted by nohiep:time for maintenance. -
ohh, all rite.Originally posted by tetsumi:not maintenance lahz dude!
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Time to get a ride on it lah!Originally posted by tetsumi:huh? wat targets?
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I was on this bus yesterday, on service 242. It really has unique engine sound. A must-try!Originally posted by tetsumi:SBS 340 U
single deck air-con bus
bus service 242 from boon lay interchange. (feeder service bus)
this bus hor... the engine sounds like a turbo-charged engine sia...
any1 got take this bus b4???
1st time i hear such engine sounds from a bus... -
How unique?Originally posted by tranquilice:I was on this bus yesterday, on service 242. It really has unique engine sound. A must-try! -
maybe like that SBS161 bus of 105?
ZYX -
My darling 340U, perm sv. 242 bus. I took it lots of times. That sound is not the engine. Listen carefully and you'll find that it is actually coming from the rear wheels Yes, It is the groan of the hub-reduction axle (hubs for short). This is the bugger with the loud hubs. (I recall putting it up as 482T, my humblest apologies.)Originally posted by tetsumi:SBS 340 U
single deck air-con bus
bus service 242 from boon lay interchange. (feeder service bus)
this bus hor... the engine sounds like a turbo-charged engine sia...
any1 got take this bus b4???
1st time i hear such engine sounds from a bus...
What is a hub-reduction axle? If you notice, the rear axle of the Mercedes O405 has a large cylinder shaped thingy. Inside that thingy, there are gears. The gears help in moving the bus and reduces the amount of power needed from the engine. The Mercedes OM447h engine, used on the O405, is normally aspirated.
The O405s have quiet hubs but they have gotten louder due to age. You can hear the hubs on a fully loaded O405 as the extra weight packs more pressure on the axle. But it is still not loud enough and is usually muffled by the loud engine, except in the case of 340U. There's virtually nothing wrong and please please please please please do not fix it. This is what makes the O405 unique and this is what the true blue bus fan will look out for. -
ahh... it sounds like a turbo-charged bus sia.. haha.. i love to take that bus too...Originally posted by The_Bus_Guide:My darling 340U, perm sv. 242 bus. I took it lots of times. That sound is not the engine. Listen carefully and you'll find that it is actually coming from the rear wheels Yes, It is the groan of the hub-reduction axle (hubs for short). This is the bugger with the loud hubs. (I recall putting it up as 482T, my humblest apologies.)
What is a hub-reduction axle? If you notice, the rear axle of the Mercedes O405 has a large cylinder shaped thingy. Inside that thingy, there are gears. The gears help in moving the bus and reduces the amount of power needed from the engine. The Mercedes OM447h engine, used on the O405, is normally aspirated.
The O405s have quiet hubs but they have gotten louder due to age. You can hear the hubs on a fully loaded O405 as the extra weight packs more pressure on the axle. But it is still not loud enough and is usually muffled by the loud engine, except in the case of 340U. There's virtually nothing wrong and please please please please please do not fix it. This is what makes the O405 unique and this is what the true blue bus fan will look out for.
can i share ur darling? -
Refer to the post by The Bus Guide.Originally posted by SBS9818A:How unique? -
One of the rare O405s that have loud hubs.
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But of course. It is there to be enjoyed by all. And if you would like to hear a turbocharger, hop on a Scania. A turbocharger makes a high pitch whistling sound. You can also hear it quite clearly on the O405G and the B10BLE.Originally posted by tetsumi:ahh... it sounds like a turbo-charged bus sia.. haha.. i love to take that bus too...
can i share ur darling? -
The TIBS O405Gs have distinct turbo whistles. Scanias, due to their soft engine, have relatively loud turbo whistles. Another reason why I like these two buses.Originally posted by The_Bus_Guide:But of course. It is there to be enjoyed by all. And if you would like to hear a turbocharger, hop on a Scania. A turbocharger makes a high pitch whistling sound. You can also hear it quite clearly on the O405G and the B10BLE.