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Valve clearance


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Hi there,

I do have a TR2 but with a TR 4 A engine fitted.

Is there any difference in valve clearance between the TR 2 and 4A head?

Input appreciated.

Cheers

Oliver

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Which rocker pedestals do you have?

if aluminium pedestals are fitted, the above dimension is  correct for standard profile camshafts.

if steel pedestals are fitted,  as original to TR2, then use 0.010” inlet and 0.012” exhaust.  Again with all standard profile camshafts TR 2 to 4A.

0.013”  is suggested for both inlet and exhaust if you are doing competition driving in the car.

Read this if interested in further knowledge.  https://www.macysgarage.com/valve-adj.htm
 

Cheers

Peter W

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Slight thread drift

Original TR2 steel rocker pedestals crack - here is an image of the internal cracking.  All 4 were similarly cracked on this engine.

Peter W

 

IMG_6406.JPG

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26 minutes ago, Lebro said:

Not nice & quite surprising.  Could this engine have had a wild cam in it, or perhaps extra strong valve springs ?

Bob.

Bog standard TR2.  I rebuilt it in 1974 using all standard items.    
Peter W

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