| Author | Message | ||
     Seth |
Anybody know if any company makes a set of stock length chromemoly fixed pushrods for a '98 S-1? thanks | ||
| Oldog |
andrews? | ||
| Seth |
I contacted Andrews awhile ago. The guy I spoke to did say that they sold a set for my bike but the lengths he quoted me were too short. I really had no way to find out if he was wrong or not other than buying a set to test. According to the Buell manual the S-1 pushrod lengths are: exhaust - 10.800" intake - 10.746" | ||
| Xldevil |
You can use any pushrods made for 5 speed Sportster or Tubers. Regards,Ralph | ||
| Oldog |
Seth why Chromemoly steel? are you building a race engine? | ||
| Seth |
Nope, not a race motor. I had the pushrods and tappets replaced last year and they lasted a whole 1000 miles. I don't know what the cause of the premature failure was. Now that I'm going to do it myself I've decided that I don't want to do it a third time. I figure using the strongest and highest quality parts will be the answer. | ||
| Oldog |
do you have pix of the failed parts? I had the pushrods and tappets replaced last year What if any mods have been made to your mill? I also take it that you may not trust your local mechanic. you have length data, prob in fsm too my x1 has about 15 k on the original valve train. I see some brightening of the tips of the cam lobes bores and other parts and areas looked good, You have My attention. Possibles: oiling clearences contact angles of the rocker arms knock off parts? soft[ improper manufacturing ] maybe try stock parts from D}aves or other sponsor | ||
| Seth |
One interesting point to mention is that the original part number for my tappets has been replaced by another. This usually doesn't create a problem but in this case the superceded tappets have the oiling passage located 90 degrees from the stock ones. I'm guessing oiling was a major factor. Maybe at lower RPMs oil pressure couldn't get to where it was needed. I took Aaomy's advice and got a set of Crane Cam tappets; the oiling passages and the roller bearings are supposed to be better. | ||
| Xldevil |
Seth. You can use tappets made for pre 2000 5 speed Sporty in pre 2000 tubers,or update your bike to the new kind of tappets, following the instructions from NRHS. "Tappet Anti-Rotation Pins: In '99 and older motors, the tappet anti-rotation pins are kind of a weak design. They're only supported on the outboard side of the tappet bore. This can sometimes lead to failures, particularly if you've got marginal clearance to the tappet body (more on that in a minute). The first thing you ought to do here in any 1991-1999 motor is to update these pins to the new style that came out in 2000. 91-99 motors used a short tappet pin with triangular retainer The pin was only supported on the outside half of the lifter bore and sometimes caused a failure. In 2000, a screw-in pin that extends to the other side of the lifter bore was used instead. We highly recommend updating all 91-99 motors to this new style pin. NRHS can handle this service for you. The '00 and up pins (part number 18532-00, 4 needed) are threaded into the case rather than retained by the little triangle piece. To update a '91-'99 motor, first carefully drill the pin hole deeper using a 3/16 (.1875") drill bit. Drill it to a depth that'll be adequate for the full length of the pin, but not so deep you break into the cylinder area. A little tape wrapped around the drill bit at the appropriate depth level works well to tell you when to stop. Be sure to drill as straight as absolutely possible, you don't want that pin to go sideways in there as it'll bind up the tappet. This whole operation is best accomplished on a good drill press or milling machine, but it can be done successfully on an assembled engine using a hand drill if you're careful. Then drill the outboard portion of the hole with a #7 drill bit to a depth adequate for the threaded portion of the pin, and carefully tap the hole to 1/4-20NC. Use plenty of lubrication and a sharp tap to reduce the risk of breaking off the tap, that can be a real nightmare to fix." http://www.nrhsperformance.com/tech_xlcaminstall.shtml Regards,Ralph (Message edited by xldevil on March 10, 2006) (Message edited by xldevil on March 10, 2006) | ||
| Seth |
Thanks for that! I've seen that done before but didn't think anything of it; I thought the whole motor had to be apart to do it.  The whole article is interesting. | ||
| Dck996 |
Harley recently released Screamin' Eagle Perfect Fit pushrod kits for Sportster engines. These are chrome-moly tubes, with a tapered shape for increased stiffness. The stock length kit is p/n 18421-06, and will fit both tube frame Buells and XB's. Since it is a new product, it isn't in the main catalogs. You'll need to ask for it. | ||
| Seth |
I just found out that NRHS Performance sells just what I am looking for. Now I'm trying to figure out why I didn't look there first  | ||
| Peter |
Careful your post doesn't get deleted for mentioning NRHS on BadWeb...  | ||
| Seth |
Well... I don't know what that's supposed to mean but... What I do know is that Badweb is the best resource for nonbias pro-Buell related information and conversation available. . . . . . . . . . . . . . . . . . . . ...just pushrods, no trolling. | ||
| Rocketman |
Pete, there was never a problem with NRHS being mentioned on BadWeB. The problem was someone here continuously PROMOTING, not simply mentioning NRHS in several posts for several weeks. But you knew that anyway. It's not like you to rock the boat. What gives? Is the weather rough in Am*dam? Rocket | ||
| Peter |
Seth, Sorry mate. Long running dispute. I shouldn't have dragged your post into it. My apologies. Rocket, It's snowing here as I type. I hate snow when there's no bloody mountains to ski down in the whole country...  I'm printing up promo stuff for next year's Dakar instead, to keep my mind of it  | ||
| Rocketman |
Pete, the promotion issue wasn't a long running dispute. What was actually happening was that particular event was throwing fuel on the fire of 'the' long running dispute. Snow flakes here! Rocket | ||
| Rocketman |
PUSHRODS Rocket | ||
| Blake |
Thank you Seth.  The pushrods you seek are also most likely available through most any dealership or BadWeB performance shop sponsor. |
