| Author | Message | ||
     Whitetrashxb |
so a while back i posted up my "tranny woes" thread after i suddenly lost 3rd-5th gears. Several suggestions were mentioned and although I hoped it was something minor, when i pulled off the primary cover i had this guy peeking out thru one of the oil passages:  along with lotsa brass shavings. Ouch. So i carefully began the process of splitting the cases, which wasn't quite as intimidating as i presumed, and found the culprit:  not pretty.... i'm wondering if i should just replace the fork and shaft, or if i should look for a complete tranny. 19k miles on this one, and wondering what caused it. IIRC the forks on the tubers are much beefier. Hmmm.... | ||
| Fast1075 |
Send the complete trans to a competent transmission shop...have them go thru it including a magnaflux, etc...while it's out you can upgrade the shift drum and have it back cut...then it will shift unbelievably well..... | ||
| Glitch |
Send the complete trans to a competent transmission shop... Any suggestions? | ||
| Fast1075 |
I'll make a couple of calls and get back with you. | ||
| Greg_e |
Please list those suggestions and please go into more detail about the machining (what and why, maybe how). | ||
| Fast1075 |
Before sending a transmission away for upgrade/repair...call and talk with the shop to find out WHAT parts to send...sounds simple, but not always. Talk to them about HOW you will be using the transmission...street, road race, dragrace, etc...they know what needs to be done if they are given the correct info. In a repair/upgrade...the trans is disassembled and measured/checked for wear or defects...if all parts APPEAR to be in good shape (nothing obviously broken, chipped, cracked or discolored)...the parts are magnafluxed to check for cracks that are invisible to the naked eye... Once the parts are checked, the shafts checked for run-out, the bushings, bearings, spacers,shims, etc are checked. any out of spec parts are discarded (a really good shop will always send the old parts back unless you tell them otherwise).Once modified, the parts are re-heat treated. At this point all the parts are either good used or new...the gears are set up in an indexing mill...the dogs and slots are recut to assure proper index and shape...the dogs and slots are cut at a slight angle (usually 5-10 degrees)on the drive side so they "dovetail" together when engaged...this makes it almost impossible to miss a shift...the angle of the back cut is determined by the end use of the transmission...street bikes get less back cut...dragbikes get more (usually)...road racers may get a "double cut for positive downshift as well as up shift... The shift drums in MoCo products is notorious for being soft...this results in wear grooves and/or raised ridges that inhibit shift action...these can be repaired and HARDENED to prevent further foolishness...or replaced with aftermarket pieces...other tricks include reworking the detent mechanism... A final bench set up and inspection. Reshimming if required, etc...if done properly, the transmission will work better than ever, and be long term reliable. There are a couple of shops I have personal experience with...one is Cycle Rama...a BadWeb Sponsor  ...the other is not a sponsor, so I will not name them in open forum as per the rules. (They are in Clearwater)...Fast | ||
| Nightripper |
all bearings and races should be replaced as well as having all the gears inspected. Also rebuild the bottom end of the motor and put new pistons and rings and a valve job. if you just have the heads done by an automotive machine shop, the price is not that high and just get the cylinders honed to the new piston size and get new rod and crank bearings. | ||
| Sloppy |
Purchasing a "pre-made" transmission may be the way to go. Not sure if Baker makes them for your model, but for my bike it made a world of difference. My Buell shifts better than my motocross bikes... | ||
| Greg_e |
Time for a six speed? | ||
| Buellblastrider |
interested info as well as it appears i have done some major major damage to my tranny/clutch in my 04 |
