Quote from: Macgyver on April 13, 2022, 11:19:27 PM
Its not a huge deal but it can cause the case to crack over time if done wrong. Just be careful and obviously follow what others have done.
Okay, did the deed on Monday. It was bittersweet. First if all, my drain plug ruse was quickly squashed. The rear cylinder exhaust connection is to thank for that. The connection was oriented such that you could put a drain plug in the bottom of the PTU pretty much anywhere EXCEPT where it needed to go. There was no play in the exhaust to muscle it out of the way even temporarily.
So for plan B I got out my mity vac and decided to do it the hard way. My God, figuring out how to get the hose in the fill plug will test your patience. I was using the smallest hose I had and even once I got it in, I sincerely doubt I got it all the way to the bottom. Is there some trick I am unaware of?
Anyways, the oil I sucked out didn't look bad at all. It was a medium reddish brown, nowhere near black. That was encouraging. I don't know how much I got out and by this point I was over it.
I pumped in more than I got out, I know that. But it still wasn't 16-18 ounces. More like 10-12 before it started coming out the fill plug. When I buttoned it back up, I also learned a valuable lesson about the fill plug.
Ive driven it back and forth to work yesterday and today. The noise is still there, which means either my PTU is in fact shot, or it's a wheel bearing. I still haven't had time to chase the wheel bearing.
The good news is I'm not smelling the burnt oil smell after I park it. I'm not popping the cork on the champagne bottle just yet but I'm trying to remain optimistic.
I will see how this goes for a while. I would feel better if I could trace the noise to a wheel bearing. I'm probably going to change the oil at least one more time, but it would be really nice to figure out a better way to do it.
If I do wind up having to replace the PTU, I've got some ideas to make the process way simpler.
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