Cylinder Head Studs
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Post by: J J DIKKE » Fri Oct 08, 2021 4:42 pm
Hello all
Could someone please advise what the size and type of thread is used for the 8 studs that screw into the head and hold down the cam cover on the TC engine.
I am not referring to the thread on the top of the stud, that the Seloc washers and nylon nuts screw onto, rather I refer to the bottom end of those studs that screw into the head itself.
Thank you
Could someone please advise what the size and type of thread is used for the 8 studs that screw into the head and hold down the cam cover on the TC engine.
I am not referring to the thread on the top of the stud, that the Seloc washers and nylon nuts screw onto, rather I refer to the bottom end of those studs that screw into the head itself.
Thank you
- J J DIKKE
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Post by: ericbushby » Fri Oct 08, 2021 5:58 pm
Hi J.J.
I just checked a spare new stud and it is 5/16" UNC
Eric in Burnley
1967 S3SE DHC
I just checked a spare new stud and it is 5/16" UNC
Eric in Burnley
1967 S3SE DHC
- ericbushby
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Post by: RichardHawkins » Fri Oct 08, 2021 7:15 pm
JJ,
As Eric says, 5/16” UNC. These studs have an unusual end on them the thread has been machined off and the end radiused. Do you have a sample to copy? If not I could send you an old one, but do not use this sample as it has been over tightened and is stretched.
Hope this helps,
Richard Hawkins
As Eric says, 5/16” UNC. These studs have an unusual end on them the thread has been machined off and the end radiused. Do you have a sample to copy? If not I could send you an old one, but do not use this sample as it has been over tightened and is stretched.
Hope this helps,
Richard Hawkins
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