The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE FORUM > Sportster Motorcycle Era Specific and Model Specific > Frame Mount EVO Sportster Talk (1986-2003 models)
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Active Threads
0 one sporty and $5000... What would you do?
Last Post: Folkie
Posted On: 9 Minutes Ago
Replies: 309
Views: 141,463
0 2020 Bikes listed on the HD website
Last Post: ParrotHead
Posted On: 10 Minutes Ago
Replies: 10
Views: 55
0 Crusty's Travels
Last Post: commando57
Posted On: 18 Minutes Ago
Replies: 2,344
Views: 297,821
0 Ironhead Starter Solenoid
Last Post: XLoSaurus
Posted On: 21 Minutes Ago
Replies: 2
Views: 37
0 Starter under load
Last Post: ryder rick
Posted On: 22 Minutes Ago
Replies: 14
Views: 376
0 Analysis results on my run of Rotella T
Last Post: shanneba
Posted On: 23 Minutes Ago
Replies: 94
Views: 28,383
0 Hottie of the day, no nudity.
Last Post: Guppy916
Posted On: 24 Minutes Ago
Replies: 13,017
Views: 1,188,249
0 oil filter choices
Last Post: Toejam503
Posted On: 24 Minutes Ago
Replies: 24
Views: 588
0 Poll: What weight fork oil do you use?
Last Post: Highly-Dangerous
Posted On: 28 Minutes Ago
Replies: 125
Views: 34,609
0 Moxley's Sportster
Last Post: Toejam503
Posted On: 29 Minutes Ago
Replies: 5
Views: 229
0 ....1
Last Post: Highly-Dangerous
Posted On: 43 Minutes Ago
Replies: 4,958
Views: 291,709
0 Currently in deep shift...
Last Post: ryder rick
Posted On: 45 Minutes Ago
Replies: 19
Views: 801
10 how low do you let it idle
Last Post: Highly-Dangerous
Posted On: 48 Minutes Ago
Replies: 36
Views: 4,973
0 For all the 79 owners
Last Post: ryder rick
Posted On: 51 Minutes Ago
Replies: 6
Views: 129
0 What brand synthetic oil do you use
Last Post: 60Gunner
Posted On: 54 Minutes Ago
Replies: 430
Views: 106,154
0 Hard Struts /Weak Shocks & Torn Wires
Last Post: Toejam503
Posted On: 1 Hour Ago
Replies: 2
Views: 50
0 Speedometer stopped working
Last Post: Toejam503
Posted On: 1 Hour Ago
Replies: 6
Views: 49
3 Wtb, Wts, Wtt, Wtg (Evos)
Last Post: rotaryman13
Posted On: 1 Hour Ago
Replies: 20
Views: 73,193
0 Another Sporty ADV Build
Last Post: Turbo Sporty 48
Posted On: 1 Hour Ago
Replies: 10
Views: 272
0 Do you use premium gas in your Sportster?
Last Post: Toejam503
Posted On: 1 Hour Ago
Replies: 1,785
Views: 364,016
0 I guess it''s true. (2019 The Last Year For The Sportster?)
Last Post: Folkie
Posted On: 1 Hour Ago
Replies: 79
Views: 3,475
0 Average age of the Ironhead forum users
Last Post: owlsplace
Posted On: 2 Hours Ago
Replies: 441
Views: 84,674
0 Standing on kick stand lean angle enough?
Last Post: 60Gunner
Posted On: 3 Hours Ago
Replies: 7
Views: 282
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Graywolf
Posted On: 3 Hours Ago
Replies: 44,692
Views: 7,025,607
0 What song do you have stuck in your head?
Last Post: iNSaNeSHaNe
Posted On: 3 Hours Ago
Replies: 2,253
Views: 204,306
0 Range With Carby 4.5 Gal Tank
Last Post: 60Gunner
Posted On: 3 Hours Ago
Replies: 106
Views: 46,468
0 Stock mirrors. Can you see behind you?
Last Post: ZCarFan
Posted On: 4 Hours Ago
Replies: 552
Views: 108,163
0 It's tich's Birthday!
Last Post: Highly-Dangerous
Posted On: 5 Hours Ago
Replies: 1
Views: 33
5 VOES Vacuum reading after engine mod... where to set?
Last Post: IXL2Relax
Posted On: 5 Hours Ago
Replies: 2
Views: 94
More...
Members Birthdays
Sponsored Links
Reply
 
Share Thread Tools Display Modes
  #361  
Old 4 Weeks Ago
lehel lehel is offline
Biker
 
Join Date: Mar 2018
Posts: 23
Sportster/Buell Model: xlh 883
Sportster/Buell Year: 1986
Other Motorcycle Model: ,Dnepr,Awo
Other Motorcycle Year: 1991
Reputation: 10
lehel is an unknown quantity at this point
Default

Thank you for the detailed answer.Well.Hammer did their best;they provide me a pair of abradable coated(by line2line) pistons,so I honed the cylinders and fit the pistons as should by line2line instructions..Engine started superbly,perform smooth & quite as a dead man s fart,for couple of minutes, and seized...To be short,now I have 0.05 mm(.0020 inch)clearance,able to take off,but after few miles still prone to seize.Diassambled again..all the parts are soaked with oil,no sign of wear on skirts or cylinder,just the spigot area out of squire due the heat,I suppose...Don t find any logic in it...the coating should wear iyself to the bore..it acting like rubber or something.
Reply With Quote
  #362  
Old 3 Weeks Ago
Four Speed Four Speed is offline
Senior Chief Harley Engineer 2nd Class
 
Join Date: Dec 2015
Posts: 1,600
Sportster/Buell Model: Sportster 883 Hugger
Sportster/Buell Year: 1988
Reputation: 606583
Four Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond repute
Default

Quote:
what can cause less amount of splashed oil on cylinder walls?
lehel, did you get any scoring on the bore? What oil pump are you running?
Reply With Quote
  #363  
Old 3 Weeks Ago
lehel lehel is offline
Biker
 
Join Date: Mar 2018
Posts: 23
Sportster/Buell Model: xlh 883
Sportster/Buell Year: 1986
Other Motorcycle Model: ,Dnepr,Awo
Other Motorcycle Year: 1991
Reputation: 10
lehel is an unknown quantity at this point
Default

Sorry for my late response;just trying to track down the facts that could caused scored pistons-cylinders other than ignition and fuel.Also because these days fitting abradable coated pistons,the scenario in my engine doesn t run with the line2line instructions..I have now 0.06 mm clearance,and still became tight on operational temperature,without signs of wear in.Yes,my cylinders were scored,but by honing became acceptable to receive these coated pistons;oil pump is stock,pressure is monitorized with gauge,working great...
Reply With Quote
  #364  
Old 3 Weeks Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,853
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 4149885
Hippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond repute
Default

I assume you broke this engine in properly with heat cycles and the recommended 500 mile procedures from Hammer?
__________________
Reference the XLFORUM'S Sportsterpedia for additional technical information & advice

In Search of Fuel, Sunshine and a Steady Idle.
Reply With Quote
  #365  
Old 3 Weeks Ago
lehel lehel is offline
Biker
 
Join Date: Mar 2018
Posts: 23
Sportster/Buell Model: xlh 883
Sportster/Buell Year: 1986
Other Motorcycle Model: ,Dnepr,Awo
Other Motorcycle Year: 1991
Reputation: 10
lehel is an unknown quantity at this point
Default

Yes,the required break in instructions were followed.Only the DaytonaTT 1005 ignition was left on street mode(not on racing mode,as Hammer recommend)just well retarded by static timing.Hammer were more than kind and replaced the cylinders,and after, it seems debris trashed the pistons....Now struggling to fit these coated pistons;line2line says to fit them finger tip pushed...he-he,after some idling and few shy revs,engine stopped by beeing to tight;with gravity involved in passing through bore,engine stopped at the end of my street...with falling through bore,....10 km...all these make me to take in consideration the amount of oil film on cylinder walls.
Reply With Quote
  #366  
Old 3 Weeks Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,853
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 4149885
Hippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond repute
Default

If you're engine is locking up after break-in (which seasons the bore), makes me wonder if the break-in went OK.
If it didn't, the rings would be suspect of failure due to excess heat.
One thing that can cause more heat is an oil pump failure.
You have a gauge on the filter pad that has been reading proper psi.
But, is the pressure relief valve working properly?
If it stays open, less oil will get where it needs to go.
Did you change oil / filter after break-in?
Break-in causes metal debris in the oil until all the parts 'season' together.
Pics of the carnage really help to diagnose.

edit:
Check your cams, bearings and bushings for heat damage also.

Last edited by Hippysmack; 3 Weeks Ago at 14:11..
Reply With Quote
  #367  
Old 3 Weeks Ago
lehel lehel is offline
Biker
 
Join Date: Mar 2018
Posts: 23
Sportster/Buell Model: xlh 883
Sportster/Buell Year: 1986
Other Motorcycle Model: ,Dnepr,Awo
Other Motorcycle Year: 1991
Reputation: 10
lehel is an unknown quantity at this point
Default

All the other parts are fine,without signs of oil starving,or heat marks;lifters running quietly.If the pressure relief valve remains open,I assume that pressure will not build up,gauge will react at it,isn t it?On constant speed it shows steady 10psi,at idle drops to 1,5 with engine hot.Oil&filter fresh;Engine kept locking up,because of the coating of the piston not wear into the bore as should?Maybe I ll try to ask line2line about it.Extra heat will appear into the bore,if the hot gases,escape thru not sealing rings,but cylinders are freshly honed & checked for roundness...will appeal tomorrow to my digital skills to upload picture
Reply With Quote
  #368  
Old 3 Weeks Ago
Four Speed Four Speed is offline
Senior Chief Harley Engineer 2nd Class
 
Join Date: Dec 2015
Posts: 1,600
Sportster/Buell Model: Sportster 883 Hugger
Sportster/Buell Year: 1988
Reputation: 606583
Four Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond reputeFour Speed has a reputation beyond repute
Default

Quote:
it seems debris trashed the pistons.
Lehel, what debris and how did you remove it?
Reply With Quote
  #369  
Old 3 Weeks Ago
Hippysmack's Avatar
Hippysmack Hippysmack is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2014
Posts: 4,853
Sportster/Buell Model: Xl1250S
Sportster/Buell Year: 98
Other Motorcycle Model: Kawasaki Vulcan 500
Other Motorcycle Year: 95
Reputation: 4149885
Hippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond reputeHippysmack has a reputation beyond repute
Default

Where are you testing the pressure?
It should be 1-7 psi at idle and 5-30 psi (2500 rpm) if checked at the hole between the tappets.
Or 7-17 psi at idle if checked at the oil switch hole on the filter pad.
Watching the gauge, you should be able to tell when the oil pressure relief pops off at startup and when it closes due to the pressure change on the gauge.
Reply With Quote
Sponsored Links
  #370  
Old 3 Weeks Ago
lehel lehel is offline
Biker
 
Join Date: Mar 2018
Posts: 23
Sportster/Buell Model: xlh 883
Sportster/Buell Year: 1986
Other Motorcycle Model: ,Dnepr,Awo
Other Motorcycle Year: 1991
Reputation: 10
lehel is an unknown quantity at this point
Default

Well,not sure about the provenience of the debris;only 2 possibillities;when reassembling the new cylinders,or when I have lost carb filter cover,on highway last winter;very fine dust of anti slippery compound on road surface...first thing when I arrived back same day was to throw out the oil&filter.
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Sponsored Links
All times are GMT +1. The time now is 16:52.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC