'06 RK upgrades
Thread Starter
|
Tourer
Joined: Sep 2007
Posts: 415
Likes: 13
From: Northeastern Md.
'06 RK upgrades
I'm right at 30,000 miles on a bone stock 88" motor in my '06 RK which still runs great.At a little over 24,000 miles did some road tripping for a total of about 4000 miles in 3 weeks which for the most part were hiway 60-80 mph.Seems since theres a lot of top end "klacking",especially at cold start up and even after well warmed during upper/relaxed load RPM's.I realize the sewing machine sound,but this can of marbles has got me thinking about going into the cam chest as well as removing the rockers.I checked the tensioners at 20,000 and they looked ok,and I realize they are due to be looked at again.
I'm leaning heavily on the SE 25282-11 tensioner upgrade kit. http://www.shoputahharley.com/product-p/25282-11.htm
Looking under the fitment,it doesn't mention '06 touring.Only '07-up softail and touring models.This still what I want?
Included in my plan is pull the rocker boxes and inspect the shafts,all the while being able to reuse stock pushrods.Next I want to replace the lifters.Comp Cams,S&S,SE,or what others are good?Cam change might be in order of funds allow.Would really like some input and/or advice on my plan of attack.
I'm leaning heavily on the SE 25282-11 tensioner upgrade kit. http://www.shoputahharley.com/product-p/25282-11.htm
Looking under the fitment,it doesn't mention '06 touring.Only '07-up softail and touring models.This still what I want?
Included in my plan is pull the rocker boxes and inspect the shafts,all the while being able to reuse stock pushrods.Next I want to replace the lifters.Comp Cams,S&S,SE,or what others are good?Cam change might be in order of funds allow.Would really like some input and/or advice on my plan of attack.
Last edited by Am4wag; Oct 22, 2014 at 08:17 PM.
HDF Community Team
Joined: Jun 2006
Posts: 12,763
Likes: 2,597
From: san antonio
The 25282-11 is not the kit you want unless you want to buy conversion cams and all the other miscellaneous hardware required for the full conversion like the roller chains, tensioners, etc. The 25284-11 "hybrid" kit may be a better fit if you want to retain OEM cams; no extra hardware required, all in the kit. The 25284-11 kit was designed to convert the early cam plates to the roller chain/hydro tensioner setup but allow the use of OEM cams.
Personally, you might consider retaining your OEM cam plate; it is more than adequate with the cams outer journals riding in bearings, not parent material of the cam plate or bronze bushings. Just replace the OEM tensioners with the CYCO tensioners, call it good and spend the saved $$ on a set or cams and new lifters.
You should check end clearance of the rocker shafts but unless it is way out, like .025" or more, shimming won't make much difference in the valve train noise. New lifters (S&S, not the premium but the regular) and a set of adjustable pushrods will help.
Personally, you might consider retaining your OEM cam plate; it is more than adequate with the cams outer journals riding in bearings, not parent material of the cam plate or bronze bushings. Just replace the OEM tensioners with the CYCO tensioners, call it good and spend the saved $$ on a set or cams and new lifters.
You should check end clearance of the rocker shafts but unless it is way out, like .025" or more, shimming won't make much difference in the valve train noise. New lifters (S&S, not the premium but the regular) and a set of adjustable pushrods will help.
Thread Starter
|
Tourer
Joined: Sep 2007
Posts: 415
Likes: 13
From: Northeastern Md.
What's all the jabber about the spring loaded tensioners "robbing" 5 hp. from engine.Not that I'm **** about hp...just seems the hydraulic make a lot more sense and are way less maintainance plus the additional oil flow from the updated pump.BUT-the point you mention about the outer cams riding on a bronze bushing (in hybrid plate) vs. stock riding in a bearing is enlightening.I'm starting to "see-saw" but am absorbing what you mention.Cams (?)-I really can't/don't complain as most of my miles are hiway.But it would be nice to wake up the 88" a bit.
Sponsor
Joined: Dec 2007
Posts: 12,084
Likes: 829
2.5-3.5 hp/torque difference between the early chain/gear drive.
We did back/back testing on those 12-13 years ago.
Not caused by friction as some may suspect but the increase is do to spot-on cam timing accuracy.
BTW, that bike is still in service and has been coast/coast MANY times as it belongs to a member of a LARGE motorcycle club.
Scott
We did back/back testing on those 12-13 years ago.
Not caused by friction as some may suspect but the increase is do to spot-on cam timing accuracy.
BTW, that bike is still in service and has been coast/coast MANY times as it belongs to a member of a LARGE motorcycle club.
Scott
Thread Starter
|
Tourer
Joined: Sep 2007
Posts: 415
Likes: 13
From: Northeastern Md.
Yeah that figure isn't much of a concern to me Hillside.I'm more concerned with finding out WHY I've got a lot more klacking now than at (and up to) 24,000 miles.You guys have got me thinking I just need to pull the rockers/check shafts,change lifters,tensioner shoes,,change inner bearings and call it a day.I might still be interested in a cam change-using stock pushrods.
Thread Starter
|
Tourer
Joined: Sep 2007
Posts: 415
Likes: 13
From: Northeastern Md.
Trending Topics
HDF Community Team
Joined: Jun 2006
Posts: 12,763
Likes: 2,597
From: san antonio
Yeah that figure isn't much of a concern to me Hillside.I'm more concerned with finding out WHY I've got a lot more klacking now than at (and up to) 24,000 miles.You guys have got me thinking I just need to pull the rockers/check shafts,change lifters,tensioner shoes,,change inner bearings and call it a day.I might still be interested in a cam change-using stock pushrods.
I would add changing the outer cam bearings as well and possibly upgrading the oil pump with the Drag Specialties higher capacity pump.
I suspect that the lifters are contributing to the increase in valve train noise more so than the rocker arms. Lot's of folks have shimmed rocker end clearance, myself included, down to .004" with no effect on reducing valve train noise. However, a good set of lifters and properly adjusted pushrods to preload the lifters makes a noticeable difference. So, I would also not over look adjustable pushrods, cams or not, to assist in reducing valve train noise; your call. While you are at it, consider the Andrews 21/26 cams or the S&S 509; a nice torque cam will wake up that 88" motor.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Thread Starter
|
Tourer
Joined: Sep 2007
Posts: 415
Likes: 13
From: Northeastern Md.
Isn't there a spring upgrade (IIRC Baisely or something like that) available djl ?I too have a feeling new lifters will quiet it down some.I read somewhere that '95-2000 (?)small block chevy lifters are the same.