| Author | Message | ||
     Troll |
Mine rattle,16900 Km, was told by dealer that all Buells rattle in the valve train? Whats the common fix? Do I need to replace tappets or can they be disassembled and rebuilt? | ||
| Innes |
Mine rattle too, also had the same tale but I don't know the answer either,so HELP | ||
| Steveford |
There's some noise and then there's this has to come apart noise. If you can't find another Buell to compare your bike's sound to, pull off the rocker covers, start the bike and make sure that oil is getting to the top end and while you're in there, check the rocker shafts, bushings and end play. If that's okay, check to see that the pushrods are straight and if they're okay, it sounds like it's time to replace the lifters (old lifters superceeded to Big Twin lifters) and pull the cam cover to see what might be amiss. Broken primary chain adjusters or loose primary chains can also make quite a racket but you can isolate the problem area with a screwdriver to the ear. Hope this helps. | ||
| Tripp |
screwdriver to the ear? | ||
| Doncasto |
Ah, the old "Craftsman Phillips Head Self Actuated Lobotomy" technique. Surgeon General's Warning: When using a screwdriver to check engine noises, be sure to put the pointy end of the tool on the engine, not in your ear." Although you can hear engine noised through a screw driver placed on the OUTSIDE of your ear, I prefer using my mechanics stethoscope. "I am not a doctor, I just like to look like one when I work on my Buell." ;-{)] edited by doncasto on February 25, 2004 | ||
| Ara |
Sage advice, Dr. Casto! Steve: What do you mean by "old lifters superceeded to Big Twin lifters"??? | ||
| Tripp |
ah... i see! | ||
| Benm2 |
Quick question: When installing lifters, does the oil hole in the lifter go facing in towards the cylinders or out towards the outside of the bike? | ||
| Blake |
 Tappet Install Instructions from Online '97/'98 S1 Service Manual | ||
| Cu_chulann |
The front cylinder on my 01 model X1 used to be noticeably noisier than the rear cylinder. I recently had the scheduled rocker box leak on the front box [paper gasket,must be early 01] after replacing the gasket, the tappet noise is now equal. That is the front is now quieter. Is it possible for a lifter to be slightly air locked. | ||
| Benm2 |
Blake: Thanks. That is very similar to the M2 manual on my shop table. But, it doesn't answer the question for me. On the side of the lifter, 90-degrees away from the flats that the anti-rotation pins use, there is a hole in the lifter body. I'm not sure, but I think the hole is for oil supply to the top end? (It goes UP through the pushrods, right?) Also, I think it makes the hydraulic lash adjustment work. It doesn't seem to matter, from looking, whether it goes in or out. The lifter is necked down below the upper guide portion, in the area of the oil cavity. It looks like that reduction in diameter is to allow the oil to surround the lifter in that area. And, the cavity in the guide is 90-degrees away from the hole, and has a small flat on the side to allow the hole to "access" the reduced diameter portion. I guessed, and put them facing the engine, but the pushrods & such are not in yet, so I can still turn them if need be. | ||
| Captainkirk |
Did anyone ever answer this question? I'm at that point as well, and of all the things I took digital pix of, that wasn't one of them. Anyone? | ||
| Rick_a |
It doesn't matter which side the hole faces. The only time it makes a difference is if you're re-installing used components...they have to go back the same way they came out. | ||
| Captainkirk |
Ok, the lifters are original, but the cams are new. I faced 'em all with the bleed hole toward the cylinders. There's no way to tell which way they were originally at this point. Won't make that mistake again. Thanks for your input, guys. | ||
| Benm2 |
Captain, I did the same. The motor's been dyno'd and through two trackdays, and has remained assembled. Seems okay so far. Good luck! Whatcha puttin' back in? Ben | ||
| Captainkirk |
Andrews N8's along with the race kit & HSR42-11 carb kit  | ||
| Benm2 |
That should make it run well enough to surprise the heck out of you! Have fun, and hang on TIGHT when you open the throttle in first. My first powerwheelie was most unexpected! Good luck. PS Mine sounded like I had thrown a handful of ball bearings (its all ball bearings these days) directly into the cam chest after the cam swap. It hasn't exploded yet, and the local HD-esque (private shop) said it sounded fine. Brace yourself, just in case. | ||
| Aaomy  |
hey guys need some help here.. are the xbs running the same tappets as the old tubers? has anyone experimented with lifter limiters? what kind of results. any help would be greatly appreciated for the next project. |
