Quote:
Originally Posted by Zachary_Huff
It's definitely a knocking sound not a tick, doesn't sound like anything in the valvetrain. It still has the upper timing chain guide and that makes some noise, but this sound Is separate. I'll attempt to post a video today but like I said it's pretty quiet. Oil light isn't on and she's full of fresh 10-30, on the previous engine I switched to 10-40 to see if it made a difference, nothing changed. I'm leaning towards engine knock, I'll check out some other forums and see what could cause that. I got a friend coming to check it out today and he's pretty knowledgable about KA's, hopefully he'll figure it out.
|
For future reference, to diagnose an engine noise without wasting your time, go strait to the heaviest oil you can, it won't hurt a KA. Cheap diesel oil and/or throw a whole bottle of lucas. Glad that's not your problem though.
As to your bogging, it depends what all's been jacked on your car, sounds like plenty, but the EGR actually leans it, because there's less oxygen - being rich prevents pinging.
And detonation is the end of the line, you diagnose it by going back and picking up the parts of the engine in the road. Pinging (though harmful) is not a "knock" sound, at least on any modern engine I've ever met. It's an advanced version of the "wet" sound and feel of heavy engine load, it's a problem with the ratios of timing to fuel to compression to octane, and is basically the engine kicking backwards against itself.