quick6
Expert Class
Posts: 257
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posted December 05, 2012 04:46 PM
piston to valve clearence
heard brock has a tool to check ptv clearance without removing the head. cant seem to find the tool. can anyone give a little help locating this tool
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2006 zx14, fully dressed and sliding(Charlie Sheen)
  
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edszx14
Expert Class
Posts: 271
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posted December 05, 2012 05:08 PM
I know there is a tool for the Busa but I dont think there is one for the 14. If so, I will buy one, too.
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Ed
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quick6
Expert Class
Posts: 257
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posted December 05, 2012 05:11 PM
that makes sense. it was a busa guy who told me about it. guess i will do it old school and pull the head and clay the pistons. thanks. trying to get a motor together for the new mirock all motor class next year.
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2006 zx14, fully dressed and sliding(Charlie Sheen)
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edszx14
Expert Class
Posts: 271
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posted December 05, 2012 05:11 PM
Hey Quick, just find this tool on Brocks's site. Part number 821130 but it is for the 09-12 Busa. Sorry I can't get the picture to paste here.
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Ed
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quick6
Expert Class
Posts: 257
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posted December 05, 2012 05:38 PM
thanks
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2006 zx14, fully dressed and sliding(Charlie Sheen)
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smokinZX14
Needs a life
Posts: 10197
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posted December 05, 2012 05:50 PM
quote:
thanks
Looks to me that tool will work just fine on a ZX14 , pleanty of room if you check it on number 4 cylinder
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Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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quick6
Expert Class
Posts: 257
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posted December 05, 2012 06:04 PM
thanks smoking. i will look into it. will probally just pull the head. i have a feeling im going to need a thicker head gasket to get the ptv clearance i need. exhaust is at 110 now and i only have 86 thousands clearance. i want to move it to 104.
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2006 zx14, fully dressed and sliding(Charlie Sheen)
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edszx14
Expert Class
Posts: 271
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posted December 05, 2012 06:47 PM
With the exhaust center line at 104 your piston to valve clearance will be VERY CLOSE. Each degree of lobe center line change is 7 thousands (.007). So if you have .086 now and move it 6 degress, thats a .042 move. That will leave you about .044 clearance and that is a very small clearance. I have .055 on my exhaust and I worry about that sometimes, especially if I miss a shift.
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Ed
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quick6
Expert Class
Posts: 257
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posted December 05, 2012 07:11 PM
thanks ed. i was wondering how much each degree moved the clearance. thats very helpful info.
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2006 zx14, fully dressed and sliding(Charlie Sheen)
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edszx14
Expert Class
Posts: 271
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posted December 05, 2012 07:58 PM
Glad to help. Good luck with the cams.
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Ed
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quick6
Expert Class
Posts: 257
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posted December 05, 2012 08:19 PM
ed if you dont mind answering how tight do you run your intake?
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2006 zx14, fully dressed and sliding(Charlie Sheen)
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edszx14
Expert Class
Posts: 271
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posted December 06, 2012 04:27 AM
I have the exhaust at 108 with .055 PTV and the intake is at 110 with .062. Hope this helps. The bike pulls real hard on top end.
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Ed
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