Aircraft Spruce Canada
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Valve Wobble Test Fix. With Indic
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Overview
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The Valve Wobble Test Fixture for parallel valve Lycoming engines is used to comply with Lycoming SB388a. Quality made of aluminum and alloy steel, it is easy to use with no set screws or feeler gauges required. Allows direct reading of wobble from dial indicator. Note: Will work on a angle valve engines as well. |
Reviews
Dear all, If it possible, please provide me information about the next item: 12-21505 VALVE WOBBLE TEST FIXTURE (INDICATOR). I need to know the accuracy of this device. If it possible please send me the User Guide, Manual or any other document that reflects the metrological characteristics for this device. Thank you in advance!
Might work better on parallel valve engines, but I couldnt get it to line up right on the valve stem on my angle valve IO-540-K1G5D. Maybe there should be some instructions with the tool.
The fixture itself is ok. Attaches with only one screw on angle valve cylinders, but good enough. The valve extension is included and makes this worth buying. Do not buy the gauge however. The one I received was defective, and took months to get a replacement. Meanwhile I purchased one for less than half the cost elsewhere, and it was better quality.
Q&A
Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
The note is correct. This tool is good for parallel valve and angle valve engines.
Per supplier: It depends on the position of the mounting lug and whether or not the lug is plastic or steel. The indicator is clamped by the lug on back of the indicator, so if it's a plastic lug, that could present a problem. It the orientation is wrong and the lug/backing plate can be rotated to the correct position, that can resolve one issue.
Per the supplier: Yes, it comes with the adapter that attaches to the valve stem.
This comes with the following: INDICATOR BASE | SPLIT GAUGE ROCKER BUSHING (2) | MOUNTING SCREWS
