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**Aryan** · 05-11-2009, 05:38 PM

Query Approved.

**animeher** · 05-25-2009, 01:46 PM

Bump. Any advise?

**blackfire_9** · 05-26-2009, 09:43 AM

Originally posted by animeher View Post

My caliber 115 is making some noise from the engine, as if something is being dragged! kat kat kat kat, especially when I roll the throttle. After a long trip, suddenly the sound started to come. Initially the sound was coming even while idling, but after recent service and after adjusting the valves and tappets, the sound while idling is almost gone, and the volume when given the throttle is decreased.

When I showed the bike to various mechs, most told me that the sound is of connecting rod, and one even suggested me not to repair it and spend 4000-5000rs if i am planning to upgrade the bike soon.

Will this have any long term bad effect on the bike?

Hi animeher,

Buddy, I cannot suggest anything specific to a Caliber but in general, I feel that the noise has more to do with the valve train rather than any other component.

After adjustment of the valves the sound has decreased considerably as you have mentioned & this shouldn't be true if the problem was with the connecting rod. I have heard of these kinds of problems surfacing due to clearances exceeding the tolerable limits in various components of the valve train, for instance gap between the valve stem & the valve guide.

My suggestions are based on my understanding of the working of a typical 4 stroke engine, although others may provide more specific inputs.

Take care

Happy & safe riding,
Prakhar

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Connecting rod noise

Connecting rod noise

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