Re: Valve train noise 1932 901
Posted by 32model901 On 2018/2/10 14:24:24
Marty,
Checking the valve seal with Dykem or Prussiam blue is a good way to verify the seal if you replace / ream the guides. Both these materials can be found in Tool Supply houses or McMaster.
Dykem is thin like paint, brush it on the seat and apply some hand force to the top of the valve, turning it 1/4 turn. If you're in contact all the way around the blue will be removed along the entire seat area, and you have a good seal.
Prussian blue is applied to the valve in a thin coat, then do the same thing. You're looking for transfer to the seat.
The lack of oil in the valve chamber still bothers me.
Dave
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Checking the valve seal with Dykem or Prussiam blue is a good way to verify the seal if you replace / ream the guides. Both these materials can be found in Tool Supply houses or McMaster.
Dykem is thin like paint, brush it on the seat and apply some hand force to the top of the valve, turning it 1/4 turn. If you're in contact all the way around the blue will be removed along the entire seat area, and you have a good seal.
Prussian blue is applied to the valve in a thin coat, then do the same thing. You're looking for transfer to the seat.
The lack of oil in the valve chamber still bothers me.
Dave
Attach file:
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