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What does this sound like? Loose Valve clearance or piston slap?


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My glanza has been making this sound since ive gone forged last year sometime, its always had a rattle sound but ive never come to the bottom of this.

Its got wiseco flat top pistons and scat rods with acl bearings all around.

I have uploaded a video so that you can hear and ill be glad if somebody can point me to the right direction of the sound and problem.

The engine doesnt burn any oil, just minimal and i drive it daily.

No losing water also

https://youtu.be/jJvcrXSvMHc

Thanks

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I have wieseco pistons with scat rods and I have a rattle as well dude. I've no idea what it is. Beginning to think it's just like that.

John

Ive done almost 6000miles and no change in sound what so ever.

I think thats just how its ment to be.

Edited by mr_K
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nothing wrong with that sound like mine should hear mine on cold starts haha :)

Same here sounds like someones hammering my block in lol..

So i guess these sounds are normal on forged engines running wiseco pistons.

Would you recommend me to map now or wait a few thousand miles..

Ive done so far like 5000-6000miles

Well I'm glad I'm not the only one that is experiencing that noise!

Bring on running in and mapping

John

I thought i was the only one lol

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  • 3 weeks later...
  • 2 months later...

sounds like cam tensioner is loose to me lads !!! probly could check the valve clearance to to be on the safe side in there

I checked my valve clearances and even changed to the head I had bought that was a known well built one and it is still there. I've run my one in now and rung her neck a fair bit and it's still fine.

John

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