Tip: If your engine was manufactured before 1960, then it almost certainly will be Narrow Deck, and these type of wrenches will work for you. This is also true if you have a Lycoming IO-390, or IO-580 (any year). A quick way to visually determine the type of wrench needed is to look at the nuts securing the base of the cylinder. If they are round in shape and have an internal spline, then this is the wrench for you. It they look more like standard hex nuts, then your engine is a Wide Deck, and you will need one of our 3882 series wrenches.
A set of two (2) spline-type internal wrenches designed specifically to install and remove the cylinder base nuts on Lycoming Narrow Decks (all models), IO-390, and IO-580 engines. Superior quality product made of drop-forged 4130 steel and hardened to 48 Rockwell.
3 lbs (1.5Kg) shipping weight.- Includes 2 sizes: 3/8" and 1/2" Hex.
- 1/2" Square Drive.
- Works for all Lycoming Narrow Deck Cylinders.
- Drop Forged from 4130 Steel & Hardened to Resist Wears.
May we recommend the following accessories to get the most from your selected product?To include any of these items with your purchase, simply enter the desired quantityof each item before cicking the above "Buy" button.
- ENGINE MOUNT ALIGNMENT PINS
- Part Number: AE282
- Alignment pins for use in installation of engine mounts on aircraft engines. Pins go in the holes ahead of bolts to help align everything without damaging the bolts.
- Price:$18.95Qty
- TOP CAP ENGINE PROTECTORS
- Part Number: TC320
- The Topcap engine protector is made to fit over the cylinder studs and shield the inside of your engine while maintenance is being performed. Topcap engine protectors are used by leading mechanics everywhere. Price is for a pair.
- Price:$31.95Qty
