Valve lash cold/hot

Old 01-25-2010, 06:28 PM
  #1  
dynaguy03
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Default Valve lash cold/hot

I have a new to me 582 -- the builder says valve lash is .016 hot. My question is...

I am changing the lifters= I have a Jesel setup-- so i have to remove the assembly... now when i put it togther i want to lash it somewhat close being cold.. as i cant start it yet ..im waiting on some odds and ends but i would like to have it close.. What should i set the lash at cold if the builder has said 016 hot?

Thanks In advance
Keith
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Old 01-25-2010, 10:25 PM
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cepx111
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Question, does it have aluminum or cast iron heads?

Close is about all your gonna get till you can figure out just how much growth your dealing with.

I would to set them all on .011 to 010 cold.

Start it, let it get good & warm, re-set them 'hot' let it cool, check again.
Make note of the lash 'cold' - then you you can set them 'cold' all the time.



On my motor, BBC 496 W/ cast iron heads.

I set all mine @ .022 cold, calls for 28 and 30 hot, never had any issues.

Cp
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Old 01-26-2010, 06:17 PM
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dynaguy03
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Default lash

I am a knucklehead... the lash number is 026 hot... i dont know where i got 016...sorry

The are Dart 360 aluminum heads .

Thanks
Keith
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Old 01-26-2010, 07:29 PM
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hammertime
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set them at 23-24

Mine I set cold at 23 and they are 25 hot alum heads
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Old 01-26-2010, 11:36 PM
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Tod74
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I set mine at .016 cold and they are around .021-.022 hot. Iron block aluminum heads. BBC.
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Old 01-27-2010, 12:32 AM
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suicidebomb
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I sure hope this doesn't turn into another 'valve lash' thread.LMAO
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Old 01-27-2010, 01:21 AM
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Tod74
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Originally Posted by suicidebomb
I sure hope this doesn't turn into another 'valve lash' thread.LMAO

Tell me EXACTLY how to adjust my valve lash. :lol:
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Old 01-27-2010, 04:49 AM
  #8  
BEAST477
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Originally Posted by Tod74
Originally Posted by suicidebomb
I sure hope this doesn't turn into another 'valve lash' thread.LMAO

Tell me EXACTLY how to adjust my valve lash. :lol:
Well Tod first you remove your valve cover then... :lol:
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Old 01-27-2010, 11:48 AM
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Scooterz
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Mine are .26/.26 @ op. temp. Sorry guys, but you know I am learning too, so here is what I do not get: If metal EXPANDS when hot, why is the lash LESS cold? If metal expands, should you allow for more LESS lash when cold? I don't get that!! Should the heat provide less tolerance in itself? For this confusion/reason, I never set mine cold. Until I understand this, I will not take a chance.
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Old 01-27-2010, 12:56 PM
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suicidebomb
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Wish I could help you here scooter, But i've been setting my lash, the WRONG way, for forty years.
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