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 Annoying knocking sound on my super custom 1kz-te a/t engine

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shly
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Number of posts : 5
Age : 38
Home City : Baguio City, Phillipines
Model and year : 1KZ-TE A/T
Registration date : 2012-01-16

PostSubject: Annoying knocking sound on my super custom 1kz-te a/t engine   Mon Jan 16, 2012 11:00 am

hello guys, can you help me with this knocking sound in the engine of my 1kz-te a/t super custom hi-ace van? i had it overhauled, changed the piston, re-sleeved it, changed conrod bearings, fuel filter, checked the tappet clearance, checked the timing, changed the nozzle tips, and replaced the whole cylinder head...

It worked out fine for a couple of weeks then it started having this knocking sound, hard starts, and emits blue smoke in the morning. smoke goes black when you rev and returns to blue smoke on idle...

Any idea? i need help badly... its making a big hole in my pocket... pale confused

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chrisandhiace
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Number of posts : 502
Age : 55
Home City : Preston
Model and year : LH 107 4wd 1992
Registration date : 2008-11-18

PostSubject: Re: Annoying knocking sound on my super custom 1kz-te a/t engine   Mon Jan 16, 2012 1:46 pm

Blue smoke is burning oil...leaking into the piston chamber from above (head, valve seals etc.) or below (block, rings etc.)....or maybe turbo oil seals
Black is unburnt deisel...(injector, timing calibration).
Knocking could be anything...but this does'nt sound good
I'd take it back to the overhauler...they guarantee their work?.........
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shly
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Number of posts : 5
Age : 38
Home City : Baguio City, Phillipines
Model and year : 1KZ-TE A/T
Registration date : 2012-01-16

PostSubject: Re: Annoying knocking sound on my super custom 1kz-te a/t engine   Tue Jan 17, 2012 10:05 am

I took it to the overhauler this morning and have it checked.

The black smoke has been dealt with, thanks man... The blue smoke probably is from the turbo coz it got oil everywhere, from the pipe to the turbo itself. Well i hope it is only oil seals, or else i have to replace the whole turbo thingy right?

the knocking sound is giving us a hard time though...
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shly
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Number of posts : 5
Age : 38
Home City : Baguio City, Phillipines
Model and year : 1KZ-TE A/T
Registration date : 2012-01-16

PostSubject: Re: Annoying knocking sound on my super custom 1kz-te a/t engine   Wed Jan 18, 2012 7:36 am

Sad OMG!!! We just found out that my pistons got fried and we have to redo the whole overhauling thing again... the mechanic says i got it from overheating, but howcome??? the temperature guage has never gone over, the highest it got is at 1/4... how did that happen??? Man!!! scratch Raining
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Clive
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Number of posts : 1094
Home City : Bristol UK
Model and year : 2003 Range Rover 4.4 goes like a rocket and drinks like Oliver Reed!
Registration date : 2008-11-05

PostSubject: Re: Annoying knocking sound on my super custom 1kz-te a/t engine   Wed Jan 18, 2012 9:05 am

Wrong pistons?

Overheating a 1kz would just seize it.
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