Typical long standard size cylinder base wrenches. Short hex drive cylinder
base wrenches for restricted access
Cylinder base wrench kit
Cylinder removal and installation of narrow deck cylinders requires cylinder base
wrenches with hex drives. There are only two sizes of nuts for cylinder installation.
Two of the large size wrenches are required to tighten the through studs properly
(one for each nut).
Cylinder installation tool kit
We are designing the following aircraft cylinder tool rental kit for removing and
reinstalling cylinders. Kits would include the following items.
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1/2" drive breaker bar
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1/2" drive long handle socket wrench
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3/8" drive calibrated torque wrench with 1/2" drive adapter
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1/2" drive extensions - three sizes
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3/4" 1/2" drive socket for through studs
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1/4" drive socket wrench
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1/4" drive calibrated torque wrench
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1/4" drive wobble socket extension for removing exhaust
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Other 1/4" drive accessories for removing exhaust
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Torque screwdriver for torquing rocker box cover screws
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Containers to store push rods
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Containers to store rockers and other components
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Gauges for measuring valve lash
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Spring clamps for checking valve lash
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Ring compressor
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Tool for removing and installing rocker shafts
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Socket for removing injectors
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Spacers for tightening the through studs while the cylinders are off.**See Note
-
Lycoming Service Instruction 1029D - cylinder stud torque instructions
Additionally we hope to include a piston pin press that we are designing.
Contact us at Little Flyers for specific cylinder wrench kits. We design them
to your needs.
Basic kit can be found at: Lycoming Specific Tools
** As the cylinder(s) on a through stud are removed, the through stud needs to be
retightened to prevent movement of the crankshaft bearings. Never leave a
through stud un-tightened! Damage can result.