| Author | Message | ||
     Paul56 |
Anybody with an 06 parts book care to provide the part number for the throttle body? Just in case I have to go this way if I can't get a shaft made soon. Thanks for the help. | ||
| Gamdh |
P0803.1AA Throttle Body Manifold Assembly, 49MM | ||
| Paul56 |
Gamdh- thank you very much! | ||
| Pontlee77 |
I was wondering if getting the 2007 will be a good idea for the 2006 Uly, as i need a throttle body too i know the TPS is 90º rotated, was this to prevent failure? | ||
| Teeps |
Paul56 What are your plans for the broken T/body? (Message edited by TEEPS on July 12, 2010) | ||
| Electraglider_1997 |
The 07' TPS mechanism was not just rotated, it was an updated part. | ||
| Paul56 |
Teeps- Haven't decided, yet. Tootal graciously sent me a dimensioned drawing of the shaft. If I can get that made in a reasonable amount of time I will fix the throttle body. If I can't get one made right away I'll try to get the complete TB from a dealer and then fix the broken one at my leisure, because I know the new one will have the same potential for failure as the original one. I'll need a spare because I still have no plans to replace this bike. BTW I have begun the disassembly process and was happy to find that the missing throttle blade screw somehow blew out of the TB throat and wound up lying on the floor of the air filter base. So far it looks like the motor didn't ingest any parts. The screw is still fully staked and shows no signs of having backed out- the shaft clearly broke through the screw hole, separated and allowed the screw to escape. The broken shaft with cable bellcrank intact walked forward out of its bore until it contacted the front cyl head. That's why I couldn't move the throttle grip any more. I'm documenting the procedure and will post the results with pix when I finish. | ||
| Natexlh1000 |
How on earth did the screw blow OUT?? Lucky! | ||
| Paul56 |
Natexlh1000- I have no idea. After 35+ years of wrenching I have learned to just accept some things at face value. I never felt a backfire and the engine continued to run at my usual ~4000 rpm cruise speed until I closed the throttle to make the freeway exit- so I know the throttle blade was open enough to let that little screw go down the intake if it was in the throat. This is where "I'd rather be lucky than good" applies! | ||
| Teeps |
Paul56, I have a friend that I presented the throttle shaft project to. The last thing he asked about was the bearing surface the shaft rides on. What do you see? | ||
| Tootal |
Teeps, the shaft rides on split teflon bushings that just press in from the outside. They just fall out when you disassemble. I have finished Maximum's shaft and am going to take it to my cousins shop this week and see if he wants to deal with it. Writing a program, his equipment is older, purchasing tooling, 1/16" endmills are fragile, and figuring overhead and time will make them expensive to mass produce on such a small scale but I'm going to try and talk him into it. If he needs a number I will start a thread and ask for request and see if we get enough to make it feasible. | ||
| Paul56 |
I got mine apart and took pix but haven't had time to upload them and tomorrow it's back to work after 2 weeks off, so..... I did notice that the screw holes in the throttle blade are about 50% larger than the screws themselves. Presumably to allow the blade to be moved around a bit before securing the screws and getting the best possible fit in the bore. However- the screw heads just barely cover the holes in the blade. There doesn't seem to be much clamping area applied to the blade. A slotted shaft would be much better IMO. | ||
| Teeps |
Thanks Tootal, Apparently my friend has the same idea. He likes to do prototype or one off stuff. He knows a guy with a production shop, that specializes in "short runs", he's got a bid into him. He wasn't sure how long that would take. | ||
| Paul56 |
So, any updates? Progress? Starting to feel lonely. Poor Uly sits forlornly in the garage waiting for a new-production, improved throttle shaft while its owner slowly goes insane while stuck in traffic on four wheels. Co-worker picked up his new Triumph Thruxton last night and brought it in today. It replaces his 05 Sportster with 90k miles that lost a big-end bearing a couple of months ago. Looks sweet. |
