Thank you, Mark. Well stated and true.

 

I'm going to do mine later tonight, fingers crossed the plate isn't cracked!

 

Good possibility it isn't...

 

Unfortunately I couldn't do it at work today, depending how much fishing I get in this w/e, I'll try to get to it

 

okay so here's some more information, if I put it in neutral, & I rev it up a bit, you can hear it at about 2000 rpms

 

Please don't tak offense of this, but you need to CHECK the bolts before discussing/videoing/sound byting/guessing/pondering/asking any more.

 

No offense taken. I just can't check it until monday, so i just figured id post what i forget to mention. Ill post back with the results. I plan on making a video, if it turns out good, ill post the link for everyone

 

Good to know.

My feeling on the bolts is that everyone should just do it as a maintenance item.

 

Hopefully I'll get to mine tomorrow night, I'll post the results

 

We're counting on that!!

 

So I finally was able to check the flex plate bolts, all were tight and no visible crack, one 18 mm bolt that holds the cover on was loose, pita to get the cover back on! Started her up and no more knock until she got warm, and there it is, doesn't seem as loud but it's still there, my friend suggested to try mobile one oil being the knock only started after I did 2 oil changes with the rotella, could this be the problem? Maybe a thicker oil?

 

I tried out some 10w-30 Synblend at my last oil change, and that exact noise that you have returned. I had not heard it in a long time... Not at all while I was using Mobil 1 TDT 5w-40. After I use up my other 6 qts of Kendall I will be switching back.

 

What type Rotella? T or T5? What viscosity? The Rotella dino oil (T) and the 4.0 go together like peas & carrots. The 4.0 is very old technology built with sloppy tolerances due to its antiquated assembly line....not a good match for synthetic IMO.

 

T3 yummy.

 

Rotella 15w-40, year around in my XJ. You can almost hear the engine thanking you...