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05-16-2008, 11:27 PM
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#1 (permalink)
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Premium Member
Join Date: Jul 2004
Location: Mooresburg Tn.
Posts: 291
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Update on had to tear it down again.
My new KB pistons arrived today so we miked them and they were 3.873 1/2 thous, my bores are 3.875, both pistons and both bore were the same, now thats 1 1/2 thous clearence, I put in new pistons but reused my old rings, heck they haven't seated in good yet, anyways fired it up at 10:30 tonight and no knocking sound, motor is very quiet, it's so quiet I can hear the primary chain, I hope it stays that way, I'm happy. 
It also goes to show that if the clearence ain't right on KB pistons your in for some noise.
__________________
My Dad said you learn from your mistake's,I should be the smartest guy in the world 
I think I am getting smarter and wiser, seems the world is not. 
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05-17-2008, 12:26 AM
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#2 (permalink)
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Lifetime Premium
Join Date: Mar 2008
Location: Ont Canada
Posts: 95
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Great to hear someones not hearing any noises. Now you can enjoy the riding |
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05-17-2008, 12:35 AM
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#3 (permalink)
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GHOSTRIDER LIFE MEMBER
Join Date: Jan 2007
Location: Land Of The Free and Home Of The Brave, United States Of America
Posts: 2,185
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Quote:
Originally Posted by Tnford27
My new KB pistons arrived today so we miked them and they were 3.873 1/2 thous, my bores are 3.875, both pistons and both bore were the same, now thats 1 1/2 thous clearence, I put in new pistons but reused my old rings, heck they haven't seated in good yet, anyways fired it up at 10:30 tonight and no knocking sound, motor is very quiet, it's so quiet I can hear the primary chain, I hope it stays that way, I'm happy.
It also goes to show that if the clearence ain't right on KB pistons your in for some noise. |
Glad your happy... I for one would have never reinstalled those rings no matter how many miles were on them... Plenty of posts on that subject...
__________________
131" KING OF CUBES * HYPERFORMANCE * R&R CYCLES R&D BUILD
INNOVATORS NOT IMITATORS
"YOU CAN'T SOLVE PROBLEMS BY USING THE SAME KIND OF THINKING YOU USED WHEN YOU CREATED THEM"
"A RICH MAN DOESN'T ALWAYS HAVE THE MOST, HE ONLY NEEDS THE LEAST"
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05-17-2008, 12:58 AM
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#4 (permalink)
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Cabo Wabo '06
Join Date: Mar 2003
Location: Norman, Okla.
Posts: 514
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Rings
I have KB's, too. Running .001" clearance. That tolerence leaves plenty of room for breakin. New rings are a good idea.....just keep an eye on your plugs. I let mine warm up a little longer than most before heading out. Give those cylinder studs a chance to equalize before you hit her hard. I wait to temp. then just do what I want. I'd also keep synthetic out of there for a while. Let those rings seat for a few thousand miles. Just ride her like you're going to once warmed to temp.
Also, if you do hear some noise in the primary at some point, check the compensator nut. I don't know if the shop that did the crap work before I took her down was at fault, but it did come loose - only finger tight. Could be the extra torque in there now. Seems to be a common issue with a fresh rebuild-plenty of threads here for info.
Good to hear you're happy. That grin is worth 10 rebuilds.
Ride safe.
__________________
05' Softail Deluxe EFI/Black Cherry Pearl
Build, blueprint, & fine tune
95" KB 10.5:1 pistons (10 to 10.2 dyn. comp.)
.030" commetic/.035" quench
HD cyl's .001" piston fit
06' modified heads
Black Diamond high lift valve springs
perf valve job (Boyd's)
TW55 chain drive cams
S&S adj. pushrods
SE heavy clutch diaphram spring
polished TB/manifold
Doherty w/Power Vents
Pro Pipe HS/BSS baffle mod/Dyna stock mod muffler
PCIII & Dyno
Jagg oil cooler
93HP/98TQ
Last edited by namooz : 05-17-2008 at 01:02 AM.
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05-17-2008, 02:18 AM
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#5 (permalink)
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?????
Join Date: Oct 2004
Location: NE Ohio
Posts: 1,458
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Quote:
Originally Posted by 1711tab
Glad your happy... I for one would have never reinstalled those rings no matter how many miles were on them... Plenty of posts on that subject...
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 ....
__________________
Power By Head-Quarters
Life's to short to drink cheap whiskey, fondle sweat hogs, and buy cheap tools.
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05-17-2008, 06:19 AM
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#6 (permalink)
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Average Dude
Join Date: Jul 2004
Location: Tuftonboro, NH (near Lake Winnipesaukee)
Posts: 3,364
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Quote:
Originally Posted by 1711tab
I for one would have never reinstalled those rings no matter how many miles were on them... Plenty of posts on that subject...
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Pussies!
__________________
"Sh!t doesn't stink unless you poke it"
________________________________
Deut. 23:12-13
 
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05-17-2008, 09:02 AM
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#7 (permalink)
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GHOSTRIDER LIFE MEMBER
Join Date: Jan 2007
Location: Land Of The Free and Home Of The Brave, United States Of America
Posts: 2,185
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Quote:
Originally Posted by YankeeBob
Pussies!
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All I can say BoB is WOW
__________________
131" KING OF CUBES * HYPERFORMANCE * R&R CYCLES R&D BUILD
INNOVATORS NOT IMITATORS
"YOU CAN'T SOLVE PROBLEMS BY USING THE SAME KIND OF THINKING YOU USED WHEN YOU CREATED THEM"
"A RICH MAN DOESN'T ALWAYS HAVE THE MOST, HE ONLY NEEDS THE LEAST"
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05-17-2008, 03:05 PM
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#8 (permalink)
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IronButt
Join Date: Dec 2004
Location: nc mountains
Posts: 299
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Tnford27 Our local motorcompany shop stopped doing real motrwork and became a hd parts changer after one of there Master Mechanics installed a set of KB's the wayyou would hd pistons about 3 1/2 years ago and it smoked like an old desil trunk in the morning. Owner was pissed ,dealer said owner broke in wrong ,owner told them fine, is you in court and then the motor was fixed. That was the last real hot rod work done there. AN they ran 2 drag race teams.
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05-17-2008, 04:54 PM
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#9 (permalink)
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IronButt
Join Date: Apr 2006
Location: Tucson, AZ
Posts: 360
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Quote:
Originally Posted by 1711tab
Glad your happy... I for one would have never reinstalled those rings no matter how many miles were on them... Plenty of posts on that subject...
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When I did my HQ build they sent me the wrong pistons. Discovered it during a compression test at 60 miles so I had to replace them with the right ones. HQ told me to reuse the rings. They reassured me several times that this was the right thing to do. I haven't had any problems.
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05-17-2008, 05:31 PM
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#10 (permalink)
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IronButt
Join Date: Nov 2005
Location: alabama
Posts: 4,137
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better you to use your old parts, otherwise somene else may have sold them as new--------------and we wouldnt wish that on anyone.
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05-17-2008, 06:10 PM
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#11 (permalink)
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GHOSTRIDER LIFE MEMBER
Join Date: Jan 2007
Location: Land Of The Free and Home Of The Brave, United States Of America
Posts: 2,185
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Quote:
Originally Posted by claydbal
better you to use your old parts, otherwise somene else may have sold them as new--------------and we wouldnt wish that on anyone.
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Say it ain't so Joe (as in shoe less Joe Jackson)...
I stand on my original quote of I sure would not have reinstalled those rings...
When I did my HQ build they sent me the wrong pistons. Discovered it during a compression test at 60 miles so I had to replace them with the right ones. HQ told me to reuse the rings. They reassured me several times that this was the right thing to do. I haven't had any problems.
You don't think HQ was saving money by you reusing the old rings do you?
As cheap as a set of rings are why would you want to leave them to chance????? Thats like reusing your oil filter when you change oil...
__________________
131" KING OF CUBES * HYPERFORMANCE * R&R CYCLES R&D BUILD
INNOVATORS NOT IMITATORS
"YOU CAN'T SOLVE PROBLEMS BY USING THE SAME KIND OF THINKING YOU USED WHEN YOU CREATED THEM"
"A RICH MAN DOESN'T ALWAYS HAVE THE MOST, HE ONLY NEEDS THE LEAST"
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05-17-2008, 06:35 PM
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#12 (permalink)
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IronButt
Join Date: Nov 2005
Location: alabama
Posts: 4,137
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Quote:
Originally Posted by 1711tab
Say it ain't so Joe (as in shoe less Joe Jackson)...
I stand on my original quote of I sure would not have reinstalled those rings...
When I did my HQ build they sent me the wrong pistons. Discovered it during a compression test at 60 miles so I had to replace them with the right ones. HQ told me to reuse the rings. They reassured me several times that this was the right thing to do. I haven't had any problems.
You don't think HQ was saving money by you reusing the old rings do you?
As cheap as a set of rings are why would you want to leave them to chance????? Thats like reusing your oil filter when you change oil...
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you know what im saying.
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05-18-2008, 02:19 AM
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#13 (permalink)
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?????
Join Date: Oct 2004
Location: NE Ohio
Posts: 1,458
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Quote:
Originally Posted by YankeeBob
Pussies!
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Just would hate to pull it apart again because there was a ring seating issue. Rings are cheap when one looks at how much money we spend on these things.
__________________
Power By Head-Quarters
Life's to short to drink cheap whiskey, fondle sweat hogs, and buy cheap tools.
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05-18-2008, 05:36 AM
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#14 (permalink)
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Average Dude
Join Date: Jul 2004
Location: Tuftonboro, NH (near Lake Winnipesaukee)
Posts: 3,364
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It was a joke. Said in jest.
__________________
"Sh!t doesn't stink unless you poke it"
________________________________
Deut. 23:12-13
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05-18-2008, 07:08 AM
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#15 (permalink)
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IronButt
Join Date: Nov 2005
Location: alabama
Posts: 4,137
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seems like the humor man has left the building. bob, i laughed and you laughed------  |
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