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Pinto valve clearance impossible

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Old Aug 26, 2017 | 05:59 PM
  #1  
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Mark Cuddy
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From: Thatcham
Default Pinto valve clearance impossible

Hi,

I'm not really mechanically minded but I can follow a Haynes manual.

I'm putting together the pinto from my cortina and am rebuilding the head...new camshaft, new rockers but I can't achieve any valve clearance whatsoever with the adjusting bolts at any position. Has anyone encountered this and if so what's the course of action....taking the rockers to be machined?

Thanks
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Old Aug 26, 2017 | 06:01 PM
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It sounds like something is not right or being done right if you have standard parts and cannot match up to Haynes?
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Old Aug 27, 2017 | 08:44 AM
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Looks very simple to me

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Old Aug 28, 2017 | 03:45 PM
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From: Thatcham
Default It should be simple

I agree, should be simple but all of my adjusters are set for maximum clearance and I have nothing....could it be that I've been sent a non-standard camshaft?
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Old Aug 28, 2017 | 05:50 PM
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Did you keep your old cam ?


If you still have it you could compare base circle diameters.


Have the valves been lapped in excessively or re-cut as that would move them back in the head ?
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Old Aug 29, 2017 | 11:15 PM
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pictures of what you're doing would be best as we can only guess at what's wrong currently. i doubt you'll be out of adjustment as pintos have a ton.
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Old Sep 10, 2017 | 06:41 PM
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Have you changed the valves? some valves are slightly longer than standard.
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