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Order Ford NAA Parts Online

Checking valve clearance on a NAA.

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Author  [Modern View]

07-06-2012 13:43:15

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How often do you need to check the valve clearance on a NAA?

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07-06-2012 15:22:16

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 Re: Checking valve clearance on a NAA. in reply to Ozlander, 07-06-2012 13:43:15  
1, every 40-50 ys at least :)

2, Any time you have the head off, or valve cover off.. or do any valve trian work.

3, If you think there is a problem.. like valve tick.. or if you think you have clearances too tight and notice a compression loss or are burning exhaust valves.


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07-07-2012 10:01:59

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 Re: Checking valve clearance on a NAA. in reply to soundguy, 07-06-2012 15:22:16  
Sounds like I've about 30 years to go. Thanks,

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07-07-2012 15:13:07

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 Re: Checking valve clearance on a NAA. in reply to Ozlander, 07-07-2012 10:01:59  
yep.. if you don't notice a problem.. no real need to just crack her open to check... if you got her open for some reason.. check her.. etc..

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Bill Radford

07-06-2012 16:38:25

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 Re: Checking valve clearance on a NAA. in reply to soundguy, 07-06-2012 15:22:16  
40-50 years is about right. I had my 641 apart recently and checked the valves. All were spot-on except for #1 and the intake was a couple thousandths loose.

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07-06-2012 17:22:55

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 Re: Checking valve clearance on a NAA. in reply to Bill Radford, 07-06-2012 16:38:25  
when I worked on my 4000 a while back. all the exhaust were spot on.. couldn't check the intake as all the push rods were bent to heck.. which was why I was checking them.. :)

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