Have you any fault codes stored in the ECU? The belt itself will also exhibit damage in the form of frayed sides from being pulled against the sides of the other pulleys. It is a common Subaru thing to have happen. It could be as simple as adjusting valve lash, or you may need to replace one or more of the rocker arms.
I'll have another look under there today. There are many different things that could be the culprit when it comes to answering the question, "Why does my exhaust rattle when accelerating? Most of them are only attached in a couple places, and when any one of those welds rust through, rattling is a result.
A catalytic converter often operates somewhere in the 1,400- to 1,600-degree range. CFJ Kenya.
Have you checked the heat shield just above the resonator yet? The heat that is produced by the exhaust system of an engine is much higher than most people realize. I don't ever park on grass, so when mine came loose, they got removed. Shipping Schedule.How To Fix A Rattling Heat Shield
If the ignition timing is off, that is likely the source of the pre-ignition. Sunil says 2 months ago. CFJ Malawi.
If you fabricate your own, weld or mount the shield so that there is a small air gap between the exhaust and the shield, as well as between the shield and whatever it protects.
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When I googled the issue the two most common causes seemed to be engine knock or a loose heat shield. Browse automotive topics Batteries Sensors Tires air conditioning belts brake system clutches.
Forget password? To get to the torque converter bolts, you will need to remove the starter from the engine and then you...