4d56t knocking/tapping noise after new rings and bearings

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scruff123
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4d56t knocking/tapping noise after new rings and bearings

Postby scruff123 » Sat Nov 15, 2014 9:16 pm

any ideas on what this noise could be? has me stumped. have reset tappets, cracked injectors-slight decrease in noise but not shure if it just because the revs drop and it stutters wen only running on 3.
https://www.youtube.com/watch?v=Wizl0zQvaqs&list=UUiEufeFGBcIVor-sVIFp9fA

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FORGE1
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Re: 4d56t knocking/tapping noise after new rings and bearing

Postby FORGE1 » Sat Nov 15, 2014 11:33 pm

At a guess I reckon it could be one of the injectors is stuffed. Do the old screw driver up to the ear on all of the, and see if that narrows it down bro.
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wopass
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Re: 4d56t knocking/tapping noise after new rings and bearing

Postby wopass » Sun Nov 16, 2014 7:28 am

not even goint to watch the vid but a real common one is

did you de lip the bore?

new rings in old bore will tick like a boss and probly wreck all the new rings you just put in.

just an idea

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Crash bandicoot
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Re: 4d56t knocking/tapping noise after new rings and bearing

Postby Crash bandicoot » Sun Nov 16, 2014 7:33 am

yep, also happens to the face of the head too, the very edge of the lip burs over normally on the driver's side of the cylinders for some reason too.
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yael
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Re: 4d56t knocking/tapping noise after new rings and bearing

Postby yael » Sun Nov 16, 2014 8:20 am

Did you get the correct thickness head gasket?
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scruff123
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Re: 4d56t knocking/tapping noise after new rings and bearing

Postby scruff123 » Sun Nov 16, 2014 11:44 am

Yup correct head gasket thickness used. It is a non turbo head on turbo block but shuldnt make a difference. And yes bores were given a de glaze. Nt shure if it was enough tho as bores were a bit scored and old pistons had dents in the top from something getting into the cylinders. Was just ment to be a cheap re ring. Not to worried. Will try the screwdriver test c if i can find exactly were its comming from.
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scruff123
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Re: 4d56t knocking/tapping noise after new rings and bearing

Postby scruff123 » Sun Nov 16, 2014 11:57 am

It wouldnt be bearing clearances would it??? Hope not. Sounds like coming from top end not bottom

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Re: 4d56t knocking/tapping noise after new rings and bearing

Postby scruff123 » Mon Nov 17, 2014 5:12 pm

would leaving the balancer shaft belt off cause this?

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