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piston to cylinder clearance

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Old Aug 4, 2009 | 09:42 AM
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Default piston to cylinder clearance

hi again

the work shop just inspect my cylinder block and found out that the pistons to cylinder clearance is

1- .010"
2- .015"
3- .015"
4- .015"
5- .005"
6- .009"

piston rings end gap .019" -.020" in top and second ring.

i think the guy who assembeld my engine didnt do the end gap but im not sure.

2 oil-jets are broken.

really bad luck

main and connecting bearing are realy realy bad !!! to much clearance.

i never seen somthing like this befor !!!!!!!!!!!

one of the darton sleeve has moved upward.

just like to share my bad luck with Darton sleeves

Last edited by SmallTuner; Aug 4, 2009 at 10:29 AM.
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Old Aug 4, 2009 | 10:26 AM
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wow a lot of issues there
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Old Aug 4, 2009 | 10:47 AM
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damm man good luck.
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Old Aug 4, 2009 | 11:50 AM
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hmm, i was pretty sure that builtZmotors was known for bad motor builds?
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Old Aug 4, 2009 | 11:51 AM
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Originally Posted by SmallTuner
hi again
one of the darton sleeve has moved upward.

just like to share my bad luck with Darton sleeves
Sorry to hear that. I've seen no issues with Darton Sleeves - sleeve movement is 100% improper installation / machining.

Good luck on the rebuild!
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Old Aug 4, 2009 | 11:54 AM
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darton should be the only one installing darton sleeves into a VQ.... IMO
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Old Aug 4, 2009 | 12:02 PM
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^^^^ agreed....
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Old Aug 4, 2009 | 12:14 PM
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^^^^ Agree x2

Although I know Injected has done Darton Sleeves with no problems, guess its just knowing how to measure and install things properly.
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Old Aug 4, 2009 | 01:14 PM
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Originally Posted by psychoballistic
^^^^ Agree x2

Although I know Injected has done Darton Sleeves with no problems, guess its just knowing how to measure and install things properly.
We've done Darton sleeves on Nissans, Hondas, domestics - even scions - all without issue. All comes down to equipment and proper installation/machining.

I know a lot of people are wary of darton sleeves, but they work great if done correctly. For street or race applications.

Small tuner - If you plan on resleeving, I suggest getting a new shortblock to sleeve.
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Old Aug 4, 2009 | 03:09 PM
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15 thou?? Those clearnaces are terrible...

I see little reason to sleeve blocks with the current crop of bolt on turbo kits.
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Old Aug 4, 2009 | 05:26 PM
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Default this is not the end of the story



i just inspect my heads to make sure and look what i found wehehehehehe

ugly !!
Attached Thumbnails piston to cylinder clearance-dsc00576.jpg  
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Old Aug 4, 2009 | 05:28 PM
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its time for a 272 cams
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Old Aug 4, 2009 | 05:37 PM
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Originally Posted by Sharif@Forged
15 thou?? Those clearnaces are terrible...
yeah
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Old Aug 4, 2009 | 05:41 PM
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Originally Posted by str8dum1
hmm, i was pretty sure that builtZmotors was known for bad motor builds?
i dont wana talk about this.
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Old Aug 4, 2009 | 05:45 PM
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Wow, is there a story behind this?
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Old Aug 4, 2009 | 06:25 PM
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Originally Posted by SmallTuner


i just inspect my heads to make sure and look what i found wehehehehehe

ugly !!
What the hell is going on here??
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Old Aug 4, 2009 | 06:34 PM
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Originally Posted by Sharif@Forged
What the hell is going on here??
i dunno man its really funny, i built allot of VQ engines here in kuwait with 0 issues, this short block i orderd form what ever and look what **** im in to
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Old Aug 4, 2009 | 07:11 PM
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what does it take to snap a camshaft like that?
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Old Aug 4, 2009 | 07:45 PM
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I told ya something was up with the cam timing.......of course the final result is a little more excessive than I expected lol.

tom

Originally Posted by SmallTuner
i dunno man its really funny, i built allot of VQ engines here in kuwait with 0 issues, this short block i orderd form what ever and look what **** im in to
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Old Aug 4, 2009 | 08:01 PM
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Originally Posted by thom000001
I told ya something was up with the cam timing.......of course the final result is a little more excessive than I expected lol.

tom
lol ur right, its realy funny how things happend this way

u shoud have look in to my face when i removed the cam and a piece of it just fall down lol

just like a salted Pretzel stick
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