| Author | Message | ||
     Court |
>>>Being skeptical by nature - I'm thinking Amsoil might format their report simply to sell their oil - the analysis being a marketing tool. You can ease your fear. Amsoil has been thoroughly, as have all other brands, tested. I went with the Maximum Performance SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALMQT) Both kits are in the car. I'll do it Saturday (if we skip the annual Porsche BBQ) or on Monday. I'd trust either I think. | ||
| Mungass |
my build month was the 7th (JULY), to whom is doin the data entry , have a mate in Canberra with an 06 or 07 sporty that dropped its bottom end last year,must check his numbers  | ||
| Reepicheep |
Fixed it Mungass... thanks for the correction! I wondered if sporties and XR1200's are dropping cranks as well. They are choked on intake and exhaust, so they probably have an easier life (less peak HP). | ||
| Rdkingryder |
Even though my engine has a problem, I ride pretty conservative. No wheelies, no burn outs, no high speed riding. Changed oil with Buell filter and HD Synth every 3-5K. | ||
| Paint_shaker |
My info if someone wants to add it; Paint Shaker, Build date 07/05, VIN ???? 54K, Failed. Of note, the bike was running strong (albeit with a lot of noise) prior to rebuild. There was very little if any metal in the oil. The bike came to me with the Buell Race Kit installed. Not sure how long it was that way. I believe I am the 2nd owner. Of all the bikes I currently have, the one that get's flogged the most (o4 XB12R race bike), runs the best. Go figure. Upon tear down, the jugs were found to be scored. Had them punched 10 over before reassembly. 26 miles on the rebuilt motor as of today. | ||
| Reepicheep |
PaintShaker... was it your crank that failed? Or something else? | ||
| Argentcorvid |
I don't remember if it was in this thread or not, but I remember someone said that the sporties' cranks were different. not sure about the XR's. | ||
| Reepicheep |
Updated to include Paintshaker (who confirmed this was a uly, his build date, mileage and the crank failure in another thread). | ||
| Wormjello |
Don't forget the Jello! My Uly crank failed a little over 30K. The engine was replaced by warranty while out of warranty. Thanks MoCo. 4MZDX03D373701342 | ||
| Reepicheep |
Build date 2007 / 06, right Jello? And it was the crank, right? Good data point on the warranty as well... When was the data, and was that when Buell was in existence? Thanks! | ||
| Reepicheep |
Ugh. Suddenly I am in a really bad neighborhood. Looks like I may be &*&^%*. | ||
| Paint_shaker |
My build date should be July of 2005 (07/05). | ||
| Reepicheep |
Fixed it. Thanks! | ||
| Reepicheep |
Dang those stats look grim. If you are at 28k or more, 7 out of 10 had a crank failure. 70% crank failure rate. For sure our data isn't random and has sampling errors. But dang. I can tell where this bus is going. (I'd buy it again though!  ) (Message edited by reepicheep on September 16, 2011) | ||
| Guell |
http://www.badweatherbikers.com/buell/messages/6/6 .html?1300137579 yall should add wormjello to the list, i found his post in the for the factory thread, 30k miles... | ||
| Reepicheep |
Yup, he is on there. Authoritative list list at the top of page... | ||
| Skifastbadly |
It gets curioser and curioser. Even given the small and unscientific sample size, the percentage of 20K+ bikes that have failed is astonishingly high. What I expected to see, though, is them all clustered around a certain build date/VIN number, as the original postulate was that there was a bad batch of cranks. However, I don't see the clustering. Of course, I was up pretty late last night drinking margaritas.... | ||
| Djohnk |
Here's the info for my bike: Handle: djohnk Build Date: Oct 2006 Number: 4MZDX03DX73700558 (nope that's not a typo the DX is there twice) Miles: 37079 Condition: No Crank Failure | ||
| Johnboy777 |
""What I expected to see, though, is them all clustered around a certain build date/VIN number, as the original postulate was that there was a bad batch of cranks. However, I don't see the clustering."" It's a 'cluster' alright - for the 2007 owners. ... | ||
| Reepicheep |
Duly logged. Thanks DJohnk! (good to hear of another almost 40k survivor, even if Harley did put a typo in your VIN. ) | ||
| Towpro |
I did a search on the internet last night on buell crank failure. There was some reports that are not on your list. Anyway, it also lead to MOCO crank failures and it had interesting results. They are finding the crank pin is loose and the crank twists a little (with much less HP then the Uly) and they are seeing .010" or more out of round on the cranks in stock power low mileage bikes. In fact I think I read HD's max was like .007" or something. This is causing vibrations and some failures. I guess to someone who knows HD already knows this. But thinking out loud, if one side of the crank turns just a little to give you this out of round, I would think the pin (lower bearing surface) would no longer be perpendicular to the rod throw, maybe this might be part of the problem leading to the failure? I mean you are not finding failures related to lack of oil, it has to be something | ||
| Djohnk |
That's interesting that Harley Davidson covered it and gave him a new engine, even though it was out of warranty. http://www.badweatherbikers.com/buell/messages/6/6.html?1300137579 (Message edited by djohnk on September 18, 2011) | ||
| Prior |
I posted this in the oil thread, but more pertinent here: There's some good data there- the next thing to do it to put the data we have into some formulas and get a predicted failure rate at a given hour level- Weibul analysis. To do this- we'd need at least the total numbers of Ulys built in in 2006, 2007 etc and do an analysis on the failures based on build month and hours at failure. Even more interesting, if one of the Elves could provide it, would be to compare the failures based on build month (would need to know build rates for the given months of the 2006 and 2007 model years. That would really give us a picture of expected failure rate in %, as well as what hour level one may expect a failure at. Yep... Time to do some homework folks. | ||
| Johnboy777 |
Hey Towpro Revolution Performance has 4 Podcasts about 'Trueing Harley-Davidson Crankshafts' About half-way down the page. LINK: http://www.revperf.com/video/podcasts.html EDIT: Why 4 podcasts? Is this issue that prevalent? Why do these cranks need trueing in the first place? What's going on here? .. (Message edited by johnboy777 on September 18, 2011) | ||
| Hughlysses |
1313 PM'ed me this morning with an interesting question: are there any XB9 primary gearing conversions among these bikes? My 07 still had the stock XB12 gearing. Anybody else got the XB9 gearing? | ||
| Reepicheep |
Interesting. Based on racers experience, revs kill the bottom end. That was the one hesitation I had to go to the 9 gearing. But who knows... maybe 9 gearing would lug the engine less, and that's where the problem is. Or maybe its bad heat treating or and under designed part or something, and you are doomed regardless. | ||
| Electraglider_1997 |
Nov 05 build date on mine with 35,000 smiles. Runs great. | ||
| Electraglider_1997 |
I wonder how many here are running stock air cleaner vs K&N. Mine's stock. | ||
| Electraglider_1997 |
vin 4MZDX03D063701930 | ||
| Reepicheep |
Thanks Elec! You are now in order.  |
