Soo for a while now Ive had a very slight oil leak from the crank seal on my ld9. Recently I pulled my turbo setup and swapped to an m45, which also swapped my stock lightweight pulley for an oversized crank pulley. While doing this I replaced the seal, but noticed my timing cover had a few small knicks in it around where the seal sits in. Needless to say, the oil leak got much worse, and was driving and pretty much lost most of my oil. The only oil I had was a little thicker weight, which didnt do anything and I couldnt get any oil pressure. This is when I started hearing a knocking sound that gradualy got louder of course.
Yesterday I drained all the oil and noticed my drain bolt had a tiny tiny bit of shavings on the end, which I swore Ive noticed a long time ago one time when I changed my oil. So I filled up today with 5w30 and it started up nice and quiet, oil pressure was reading about 45psi cold which keep in mind I still have that oil leak but wanted to check the sound. I primed the oil system then let it idle for a few minutes still nice and quiet. Then I slightly reved it and its quiet up to about 2k rpms but after that I can start to hear the knocking. Its nowhere near as bad but pretty sure its too late, my problem is finding what it is??
It sounds like it is more in the top end, but possible I spun a bearing? Im afraid to drive it, Im sure it will get pretty loud above 2krpms but dont plan on driving it since its still got a leak anyway. I dont wana go through the trouble of replacing the damn timing cover if the motor is @!#$ anyway, any way to kind of pinpoint the problem a bit more without tearing into it yet?? Any comments or help is appreciated!
the exact same thing happened to me except it was the rear main seal that was leaking. i changed the oil and at about 2100 rmp it started knocking. i decided to drive it like that and only lasted a week of normal driving. the thing is that if you stop driving it it might still be fixable, unlike mine that needs a new crankshaft and two new rods and new balancer shafts, get the point.stop driving it and fix it, its probably a rod bearing that ovaled out wich aint to bad yet.
Im not driving it. If it is in the bottom end Im not gona waste time fixing a 108k motor it will just get a new one. Gona tear into it tomorow, have a feeling its a rod bearing but like said it kinda sounds like its in the top end/valvetrain
I'm going with rod.
I just had to replace the motor in the blue z not too long ago because of the same thing.
no no no rods in teh ld9 never go bad. i have had 3 though. sounds like time to build a lg0 ld9 hybrid
