Yup, the P5 has them too.
Well not really, only on 2 of the plugs and each pack had to run one other plug.
Yup, the P5 has them too.
The MSM's engine may be wounded ...
It almost sounds like a very faint main bearing tap. Sound wasn't there 2 days ago, was there yesterday, still full on oil with 2,200 miles on it, no high lateral g that might indicate there was an oil starvation, and nothing above 6,000rpm or 8psi. Can't hear it from the engine bay or the top of the engine, can only slightly hear it from the driver's seat with the windows up and hard top on, and can only hear it under ~1,200rpm. In time with revs, sounds like one cylinder from the rate of the noise.
I've got about 8 hours of driving by Saturday, and the Celica still isn't inspected yet, as it has a voltage problem with one headlight that blew out the bulbs that i haven't found yet.
Did an oil change already, no noise change, no metal on the magnetic plug. Cutting open the oil filter today to see if there is any metal in there. Also going to do a compression test to see if there are any low cylinders that might suggest a bent rod.
I hope i'm worrying over nothing, but... that noise wasn't there before.
oh no, lets hope not after all you have invested, time and money? i wouldn't know a main bearing tap if i heard it...you have special skilz!! go slow dude!
I think i figured out what it is. I mounted the LS2 coils directly to the fender, and I think one of them is transmitting a 'tap' from the internal arcing that they do. You can feel them all pulsing slightly when the engine is on and you touch them, and one of the coils is pulsing stronger than the other 3. Going to test the theory tomorrow by seeing if the sound goes away with them just laying on a mat above the engine instead of bolted anywhere.
7 hours of driving today and yesterday, zero problems.
Compression is within 3psi of each other on all 4 cylinders, ~123psi if I were to believe my cheap compression gauge. The stability of the numbers is the main point I concern myself with.
I do have better hearing than most people I interact with, it's always been my strongest sense.I'm thinking the same thing. Mike should get a nice insurance policy on those ears!
How did you make out? I hope this was the issue, a nice easy fix. Like Mark said I'd hate to see it be something catastrophic given everything you've invested.
And moving?
And what does "mikes super ear" think is going on? You know you want an 8! ��So I strongly suspect that there is something indeed going on inside my engine that is unhealthy. It probably isn't a massive critical problem yet, but I expect it will become so eventually.
I'm increasingly wary and unsure of how much I can rely on it, and I am getting very close to just parking it in long term storage until I can pull the engine and send it off for an FM rebuild. I'd rather do that then keep driving it until it finally blows spectacularly, stranding me and making me have to go find a core to use for a rebuild.
I still have to drive it right now, no choice, but trying to get the Celica's electrical issue figured out so I can get that on the road.