Timing the Oneida Stealth Eagle

To time this bow you must understand it was developed to work as close to a regular wheel bow so that no extra timing procedure was needed unlike all Oneida’s with the slotted adjustable system. Most thought they could just reset at any point with weight on and the bow would be in time top and bottom. Disaster was the result in most cases. The thing to realize is that timing or synchronizing must have a starting point or a relationship to the straight line of the bow. If you draw a center line through the side of a stealth riser and in reality it already has one (the timing channel) we can use this to determine cam rotation and synchronizing of movement.

There are three points (Fig. 1) we can use at each have exactly the same relation to the center line of the bow:

1. The axle on which the cam is placed.
2. The idler wheel.
3. The slot holes that are cut into the cam.

Method of Timing

If your bow has limbs on the best way to start the first time is to take them off;

Back off limb bolts until string is limp and cables are loose.
Take off string by pushing on outboards.
Take all cables out of cam slots.
Remove limb bolts and limb assembly.

Now that you have the riser with just the cams, loosen the timing hub set screw and it should relieve tension on timing cable.

Note: On right hand bows timing hub is located on top cam assembly and on the bottom of left hand bow.

Note: You need to acquire from Oneida or Bowtech Unlimited two custom made pins to use for cam timing location. These pins are a specific diameter that will set cams at exactly the position in relation to the riser center line for my specifications for the bow.

Place each of these pins (fig.2) into the cam location holes at both ends of the bow and rotate cams to the rest position as they would sit if the bow was completely assembled. The pins will go all the way through both right and left cams at the same point and will touch on the idler wheel and the timing wheel cable as shown in (fig.3).
Once you have pins and cams located in rest position you can hold them in place and have someone else retighten the timing cable take-up spool or use two elastic bands to hold pins against idler wheel and timing wheels at either ends of the bow. When you have done this correctly there should only be 1/8 of deflection on the timing cable at either end and cams should be an equal distance from the centerline of the bow at any point in there rotation.

Key Points:

1. Timing cable should be tight with 1/8 deflection at idler wheels.
2. Pins have to be at equal points through RT. and LT. Cams.
3. Check relation to center line of bow.

After timing procedure is complete reassemble the bow. DO NOT loosen the timing system again; it should stay perfectly in time without retiming at weight adjustments as long as you follow these rules:

1. During assembly keep weight bolts at same increments from riser.

2. Only two full turns on each weight bolt at a time alternating between the two.

3. Most limbs were not a matched set so tiller should be close but can differ but should be within 3/16. Note: C.P. Oneida now match sets all limbs.

4. Bow is set up properly when equal amounts of deflection are measured at both ends of timing cable (1/8). If one end is tight and the other is loose then it is not set up properly. To adjust the rule is tighten weight bolt a 1/4 of a turn at the same end the timing cable is tight and this should relieve and equalize the tension. This also increases final weight by a bit. If you adjust at weight bolt that is at the same end as the loose end of timing cable you must back out limb bolt and this will decrease the bow weight.

With practice you will be able to set up and maintain a Stealth Eagle’s timing system in minutes and be confident of the stability and performance of this bow.

Bob Beneteau
BowTech Unlimited
627 Richmond St.
Ontario, N9V 3Y4 Canada

1. Cam Axle Pin

Cam Timing Hole

2. Idler Wheel Pin

Cam Timing Pin

Cam timing pin in location


Note; I will have the pictures very soon, Have to reload an old web site to get them and other goodies