Ticking getting louder in 09 RKC
Swapping lubes (more than once) is probably not the best idea, period, unless someone has tested and discovered any issues with interactions of additives-chemicals used in the lubes.
Using anything other the HD recomended lubricants is not the cause of excessive ticking, engine noises, etc unless you are using an oil that does not meet the HD recommended spec and weight. Different wieght oils at certain temps can have an impact on the overall lubrication and engine noises, but switching to something other than what HD uses will not cause issues, again as long as the oil meets the recommended minimums. Yes, HD has a very large R&D dept and runs a myriad of tests, but if there was an issue, they would say so, and they dont.
Changing oil weights is recommended by HD for certain temps. Changing to a different oil every oil change may have some impact in that each oil has differing additives, and some may not mix so well with the next oil, but overall, if you use a premium oil you will be fine. Oil is like religion, everyone has opinion on the best and will generate huge debates over what is good and what is not.
Go ahead and flame away, I use ATF in the primary and without issue, far from what HD recommends. Even on the big inch, highpower engine I am running, I change engine oils at 5k, tranny once a year and primaty at 10k (based on oil analysis). I put an average of 15 - 20k miles a year (in less than a 6 month riding season) on the bike and I will be the first to know if anything goes wrong that is oil related.
Ron
Most will notice the "top end noise" comes and goes, so it leads to harmoncis, either in the compensator, chain, basket, etc. A lifter will not come and go, either it works, or it doesn't for the most part.
I have engine all apart for an upgrade and looked things over somewhat.
The bushings inside of the rocker arms appear to be reamed out off center. I can see the tooling marks for about three quarters of the bushing and then the other section looks like the reamer didn't touch it.
A builder on a different site clued me into to this. ALL of the tolerences in the valve train can be at the maximum allowable spec... still WITHIN spec, but the added 'slack' can contribute to this 'stack height' measurement. With things moving around a few thousandths... the lifters cannot keep up with it.
So... I have NEW bushings, lifters, and rocker shafts (which are .005 larger than the ones I took out).
Im a hopin....................... when I put this back together............ otherwise, since I will KNOW it's all good, I'm just going to live with it.
Last edited by wurk_truk; Aug 30, 2009 at 04:33 PM.
The Best of Harley-Davidson for Lifelong Riders
I will say too that it is possible for a lifter to come-n-go. I worked on a sportster a while back with an interment miss. I finally caught it missing and was able to get a good compression check on both cylinders. The front cylinder was down to around 80 pounds. I pulled it apart and just for giggles put a set of lifters in the front. It brought the compression back up to spec and the bike is still running fine to this day. I think there must have been some trash in the lifter and it would not bleed down at times.






