$10.00
The Johnson/Evinrude Support Screw secures the armature plate support to the crankcase on select OMC outboard engines.
This screw is located beneath the flywheel as part of the armature plate and ignition timing support system. Proper mounting helps keep the armature plate support securely positioned
Ideal for ignition system service, armature plate repair, powerhead rebuilding, or replacing damaged, corroded, stripped, or missing original hardware.
Ships in 5–7 days
The Johnson/Evinrude Support Screw is used to secure the armature plate support to the crankcase on select OMC outboard engines.
Located beneath the flywheel, this hardware is part of the mounting system that supports the armature plate and related ignition timing components.
Although it is a relatively small piece of hardware, proper installation is important because the armature plate support must remain securely attached to the crankcase while the ignition timing assembly operates above it.
The Support Screw fastens the armature plate support assembly directly to the engine crankcase.
The armature plate support provides the foundation for the rotating or movable ignition plate assembly located beneath the flywheel.
Properly secured support hardware helps maintain:
Loose or damaged support screws can allow unwanted movement within the armature plate assembly.
The ignition components beneath the flywheel must remain properly located while still allowing the timing mechanism to move as required.
The support assembly provides the stationary foundation for that system. Thescrew secures that foundation to the crankcase.
Depending on the specific Johnson/Evinrude engine, several support screws may be used around the armature plate support.
When servicing this area, inspect all mounting hardware rather than replacing only the visibly damaged screw.
Replacement should be considered when:
Damaged hardware should not be reused simply because it can still be threaded into the crankcase.
The armature plate is directly involved with the ignition timing system. If the support beneath it becomes loose, the plate may develop unwanted movement or poor alignment.
Possible problems can include:
If excessive movement is present, inspect the complete support assembly rather than assuming the screw itself is the only problem.
Whenever the armature plate support is removed, inspect:
A new screw cannot correct a damaged support, stripped crankcase mounting hole, or excessively worn armature plate assembly.
Before installation:
Avoid overtightening small ignition-system hardware, particularly when fastening into aluminum engine components.
On a performance or racing outboard, secure ignition-system mounting is especially important.
High RPM and continuous vibration can expose weaknesses in loose or damaged hardware that may not be noticeable during light recreational use.
The armature plate support needs to remain securely attached so the timing assembly can operate consistently without unwanted movement.
During SST-45, Formula Light, or other performance-engine maintenance, inspecting the hardware beneath the flywheel is a simple step that can help prevent ignition and timing problems later.
Replacing a questionable 0332070 Support Screw during service is inexpensive insurance compared with troubleshooting an intermittent timing or ignition problem at the race course.
| Weight | 0.15 lbs |
|---|---|
| Dimensions | 1 × 1 × 1 in |
