Which is the valve do I open first?
When you open the suction side slowly first, oil loss from the compressor will enter the suction line. Once the compressor begins running, it will pull that oil back into the compressor. When doing it this way, you would attach your micron gauge to the liquid line core remover side port with the Schrader in place in the side port.
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How does an air gulp valve work in an engine?
This systems is fitted with an air gulp valve that acts like a one way check valve to allow air into the system when the engine is under load. This gulp valve is fitted to the exhaust manifold via a large pipe or an individual port tubing configuration with a rubber tube that connects to an air pump.
Why do you need to do a valve job?
Maintain a clean, efficient cooling system so, the engine does not run too hot. Use good quality fuels, to help prevent carbon build up on the valve and seats. Valve work often requires a certain amount of detective work. To fix a valve problem, you first have to figure out what caused it in the first place.
Is it OK to cut new valve seats?
Cutting New Valve Seats. Most often you can get away with just lapping new valves into existing seats. When the seat itself gets burned, you will never get good, long-lasting compression unless you repair the burned area before putting the head back into service.
What do you need to know about exhaust valve jobs?
Exhaust valves and springs often need to be replaced. Valve guides and/or seats may have to be replaced. The head may be warped or cracked, requiring additional repairs. The list of things included in a “complete” valve job will vary from job to job.
When do you know you have a valve problem?
Another sign that you have valve problems is that you frequently notice a, reduction in engine power and performance. If your valve guides and seals are leaking; oil can accumulate on the top of the valve and cause it lose its seal.