Thread: Amazon: - Cylinder head
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Old Nov 8th, 2019, 12:00   #4

Last Online: Jun 10th, 2020 10:00
Join Date: Feb 2019
Location: Chorley

Another interesting point is that when I took the head in to the workshop, they did a vacuum test around each valve. This built up a vacuum and then you watch it decay. All the exhaust valves decayed faster than the inlets but according to the tester they weren't too bad - not enough to explain the poor compression.
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