| Author | Message | ||
     Toss2 |
I'm new to the board. Got a 2002 M2. Anyone know if the SE 575's will work as a "bolt in", or do I HAVE TO change the valve spring too? I've been reading the posts but don't see this info asked before. Thanks! Tommy | ||
| Steveshakeshaft |
No, they are not bolt in camshafts. (Message edited by steveshakeshaft on May 03, 2006) | ||
| Toss2 |
What else I need? I'm low on $$$ but have a killer deal on the bumpsticks. Friend at a local shop had someone order and leave a depolsit on the bumps, but he just got sent to prison for arson and it doesn't look much like he'll be back for them. Buddy said I could have em for $160. He says the sporties kit comes with new springs but that the thunderheads on teh 2002 cyclone dont need them. What else do i need to use them? Thanks Tommy | ||
| Steveshakeshaft |
You'll need to check all the critical clearances in the motor. Valve Guide and Seal Height, Spring Coil Bind, Spring Rate and Pre Load, Retainer to Guide/Seal Clearance, Valve to valve, Piston to Valve clearances, Cam Lobe to Case Clearances, Anti Rotation Pin to Tappet Clearance/Slot Height, Rocker Arm to Rocker Cover Clearance. If you've never done this work before I recommend you have a person guide you who has done this work before. There's possibly other stuff that I can't think of right now. For example, you may need to upgrade the valve springs if they're too close to coil bind at max lift with the required seat pressure set on them etc... Hope that helps you understand why they are not bolt in cams. Regards Steve. | ||
| Toss2 |
OK. I get it. Thanks. | ||
| Steveshakeshaft |
Pleased to help Tommy. | ||
| Xldevil |
So,will the SE 536 work as a "bolt in". Will I get problems with valve overlapping/valve to valve clearance? Do I need to upgrade my valve springs? Do I have to modify the gearcase because of the higher lobes?Will they require to grind material of my rocker boxes?Bike is a 2002 Cyclone Ralph (Message edited by xldevil on September 09, 2006) | ||
| Xldevil |
Hey. Nobody made any experiences and/or can give information? Ralph | ||
| Blake |
It's in the works, stay tuned.  | ||
| Pammy |
"So,will the SE 536 work as a "bolt in". " So to speak. Nothing is just effortless. "Will I get problems with valve overlapping/valve to valve clearance?" You shouldn't. It's the same TDC lift as SE's "bolt in" cam "Do I need to upgrade my valve springs?" A definite, yes. "Do I have to modify the gearcase because of the higher lobes?Will they require to grind material of my rocker boxes?" Probably not the gearcase, but you may have to grind on the rocker box lid. No Biggie. "Bike is a 2002 Cyclone" Nice bike. You should always, ALWAYS, check clearances. Anything worth doing is worth doing with all of the anal-retentiveness in your soul! | ||
| Alex |
"Will I get problems with valve overlapping/valve to valve clearance?" You shouldn't. It's the same TDC lift as SE's "bolt in" cam Have You ever dialed in these cams? No? Maybe You should do so. You will be surprised. | ||
| Pammy |
"You should always, ALWAYS, check clearances. Anything worth doing is worth doing with all of the anal-retentiveness in your soul!" A surefire solution to ANY surprises.  | ||
| Pammy |
"You shouldn't. It's the same TDC lift as SE's "bolt in" cam" Seems I answered too hastily here. There is a difference between the TDC lift in the 2 cams. The "bolt in" cams have .0211/.0191 TDC lift @ valve(int/exh). The 536's are at .209/.236. I misread the info. You need .282 between the two valves(closest point), with the valves resting on the seat. Other wise you will have to sink the valves. Still not a big deal. Unless, you have zero miles on your bike and since you will be disassembling the heads(to replace the valve springs) anyway, you will surely need a good valve job. Make sure you use a good head shop. Another tip I have for you is to replace the lifters as well. This can be a weak link in any motor build (of a pushrod engine) and it is always better to be safe than sorry. edited for misspelling (Message edited by pammy on September 19, 2006) |
