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Engine Building Fundamentals: Valve Spring Compressor

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Valve Spring Compressor

01.13

00:00 - If you're going to be doing any work with the cylinder head, you're going to also need a valve spring compressor, so that you can easily install and remove the valves from the cylinder head.
00:10 There's a variety of options here, including spring compressors that can be used to remove and install valve springs while the head is installled on the engine.
00:19 These valve spring compressors require a steady supply of compressed air to be supplied into the cylinder head, to hold the valves closed.
00:28 When the engine is apart, however, we can now get to both sides of the valve, and we'll typically want a C clamp style valve spring compressor.
00:36 These valve spring compressors feature a large body in the shape of a C, hence the name.
00:42 The lower side of the compressor supports the head of the valve, and the upper side is wound down onto the spring retainer.
00:49 This allows the compressor to straddle the cylinder head casting and get to both sides of the valve.