Join Date: Dec 2004
Location: East Wenatchee WA
Searched back and found the posts in reference-thanks. Here's my issue with that-whether it's a problem or not, or could lead to one, I don't know, but curious none the less. While at the dealer getting the re-sync done, factory spec calls for +- 15 degrees I think. I had everything lined up well within that range at one point for "final" sync getting to 0.8 degrees and allow for the +- 6 that it will accept for optimum performance. While getting it fine-tuned, couldn't help but notice even a very minute rotation would quickly throw it out of spec and in some instances, several degrees out of spec. You couldn't tell at all by the engine running unless it was WAY out where it would stumble, but none the less, it ran fine at more or less than the 15 degree allowance. It was a real PITA to get it zero'd perfect and I got fed up and left it at 0.8. How important is it to get it "zeroed" or close to it? By the method above, you're basically getting a point where it runs without stumbling, but still could be way off zero and on the edge of the 15 limit or just outside so that with wear over time, it would open up the gap at or more than the 6 degree variance, leading to other issues... This is kinda why I was hoping there as an aftermarket dealer type computer tool I could buy to do this myself, along with other things in the rig rather than paying them to do it each time. If it's not an issue, I can easily find TDC then install it lined up properly and re-set it myself each time, getting it "close". If "close" is close enough, that will work fine. Just curious.
On the oil issue, what kind of ZDDP levels are necessary? I ask because I have run RP fluids throughout the rig since less than 1000 miles with the original opdg failure. I've run 10w30 since then and this morning, contacted RP to ask about their levels as well as if I should add the ZDDP additive. I got a reply back today stating that NO, they don't recommend adding the additive to their oils. Instead, simply swapping to 10w40 weight oil will increase the ZDDP levels to 1300 as the higher weight oils are allowed higher percentages of phosphorous and other additives. I think the 10w30 I have been running contains 1000 ppm ZDDP. Without knowing what "old school" oils were, knowing that restrictions were put on anything for over 1200 due to cat issues and a full can of additive in Fog's rig brought it to 1600ppm, simply swapping to 10w40 for 1300 SEEMS like an easy solution without adding extra. Going to give it a shot next change. As law allows higher levels, kinda curious if all oil makers use more in their heavier weights. Could help spending extra money on a can of ZDDP additive each oil change if just using a slightly heavier weight is all it takes. 10w40 used to be the standard for most rigs I had in the past, and up until recent years, just began using thinner oils.
Best of Luck,