FREE SHIPPING ON ORDERS OVER $350 (USA ONLY - SOME EXCLUSIONS APPLY) | 877-4-SPRUCE

MAG TIMING TOOL CONT C85/C90/0200

$42.75/Each
Part# 12-05514
DescriptionApplicationPart Number
Magneto TimerC-85F / C-90 / O-20012-05514

Overview

Aluminum CNC tool manufactured in Alaska for simple and perfect magneto timing.

Very easy to use! Simply position engine on #1 TDC compression stroke. Lube grommets. Put this tool on the top two propeller nuts and sight down top case halves to see exact mag timing. Now there's no need for propeller protractor cones!

Applications

  • Direct drive sand-cast engines

Specifications

  • Place Magneto Timer over the prop nuts and slide down the casing split to set the timing.

Reviews

This FAA A&P, the greatist thing since sex. Very easily used by the owner, check by the owner for engine timing, Change by A&P only. Many engine coughs and sputters affect engine timing, I could name 10 very quick. And keep you from walking home. Nice to have, 60 years ago. Worth $$$$. Havent checked Lycoming yet.. CH

Chuck H
November 2, 2022

Works every bit as good as the dial version on my engine

Christopher H Verified Purchase

MAG TIMING TOOL CONT C85/C90/0200

March 24, 2022

Great tool. Saves labor and makes timing easier,

Keith P Verified Purchase

MAG TIMING TOOL CONT C85/C90/0200

August 5, 2021

Great product

Caldwell A Verified Purchase

MAG TIMING TOOL CONT C85/C90/0200

July 31, 2021

nice tools ill be more precise while timing

Marc
December 1, 2020

Great tool. Works as advertised. So easy, just set engine near tdc and slide gage over prop hub bolts. One negative, on Bonanzas where cowl does not remove, they should print timing marks on both sides of gage for siting down the case centerline. I had to duplicate marks on other side of gage. Still not a big deal. So much easier than timing with a cone. no leveling, no spinning prop.

Green A
November 22, 2020

This is a great tool if you want to do a quick check on your magneto timing for the recommended engines.

Stephen
August 7, 2020

The O-300D has the same propeller bolt pattern an the O-470, IO-520,& IO-550 which is 6 1/2 holes in a 4 diameter. The tool works on the O-300 D!

Alaska A
April 23, 2020

I had set my timing using the older method. Then used this to check. I was very pleased how easy and I think more accurate using this tool is. There are too many steps in the old method where you can make 1 to 2 degree errors. This is right on. I use a mirror to sight down the spine of the case. Very accurate

Joe F
April 22, 2018

After using the flower pot and piston stop this tool is fantastic! get #1 on TDC, Install this tool set 22 degrees and install and set the mags.

Tom
April 16, 2018

Q&A

Please note, Aircraft Spruce'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 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.

Q: Will this work on the continental A-65 & A-75?

These engines are not listed. Per the application info this is used on TCM 0-300D, 470, 520, 550.

View in Catalog

View Image View in Catalog