Quote:
Originally Posted by LoneRonin
I have noticed a new tick tick tick noise recently which is only there when the engine is cold. I recently switched to synthetic 5W40 oil and another rider told me the thinner oil could be a cause for this.
He said the oil probably isn't sticking to the internal parts as well when its cold due to thiness and it sounds like the noise is a dry cam chain...
Any ideas? At first I though CCT but its fine when warm and at operating temperatures...I think I will switch back to 10W40 and see how that goes.
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While 5W40 is thinner than 10W40 at cold temperatures (hence the 5W vs 10W), it is never thinner than the specified SAE40 is at hot temperatures.
Our engines tick, it's normal.