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+--- Thread: What is causing screws to loosen on a fuel metering actuator? (/showthread.php?tid=4457)
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RE: What is causing screws to loosen on a fuel metering actuator? - Lonestar10 - 04-24-2019
and one wont bolt where the other goes without lots of persuasian.
RE: What is causing screws to loosen on a fuel metering actuator? - Rawze - 04-25-2019
screws breaking repeatedly =...
* uneven mounting surface (maybe you are using the wrong type of gasket?. Dirt? OR... There are 2 different types of actuators. Some use a metal flat gasket, others use an o-ring.
* Over-torquing the nscrews when installing. -- USE A TORQUE WRENCH. TORQUE ACCORDING TO QUICKSERV. AND STOP GUESSING!.
* Pressure regulator / pressure relief valve in IFSM is going bad.
* The 6mm bleeder for the injector passage is clogged and fuel is expanding, blowing out the actuator after it expands.
* crud in the actuator dampers in the back of the IFSM.
https://youtu.be/MWiSwgcwIoc
and...
https://youtu.be/_WeiDC6S8Lw