valve guide


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valve guide

[′valv ‚gīd]
(mechanical engineering)
A channel which supports the stem of a poppet valve for maintenance of alignment.
References in periodicals archive ?
In this paper, the valve stem and valve guide contact behavior is investigated for an engine with RFF valvetrain and overhead cam configuration.
STI's strength is its engine component technology, particularly that of its valve guide.
A valve guide had pushed out of the head, causing the valve not to open correctly thus blowing the oil out of the engine," explained Chris, "so it was time for another engine change.
The VGS-20 Valve Guide and Seat Machine lets shops set up and run heads up to 48" long.
Peterson Machine Tool has added the System 2000 XL Valve Guide and Seat machine to its line of engine rebuilding and cleaning equipment.
The exhaust valve guide was out of limits while the exhaust valve was burned and unserviceable.
We also asked about specific shortcomings, such as loss of compression, valve guide wear and cracking and respondents were given the opportunity to comment generally on cylinder issues.
Valve stem seals are designed to allow a small amount of oil to pass through the seal lip to provide lubrication at the interface of the valve stem and the valve guide.
Three of the six cylinders experienced valve guide failures at 384 hours time in service.
Keep the jugs cool--whether with fuel (rich of peak EGT) or air (lean of peak)--to help prevent both cracking and exhaust valve guide wear.
The valve stem was damaged and would not pass through the valve guide.
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