Survey by Qualaroo
+ Reply to Thread
Results 1 to 15 of 15
Like Tree17Likes
  • 2 Post By gull_s_777
  • 1 Post By asjdsm
  • 2 Post By hidalgo
  • 5 Post By Automotorsport_Lover
  • 2 Post By Automotorsport_Lover
  • 1 Post By mfdarvesh
  • 1 Post By asjdsm
  • 1 Post By Automotorsport_Lover
  • 2 Post By Xulfiqar

Thread: Info regarding Engine Overhaul/Clutch Plates

  1. #1
    Senior PakWheeler Follow
    gull_s_777's Avatar
    Join Date
    Feb 2012
    Location
    Bahawalpur
    Posts
    2,279
    Follows
    1
    Following
    0
    Mentioned
    90 Post(s)
    Tagged
    7 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default Info regarding Engine Overhaul/Clutch Plates

    Hello everyone

    I need some info about when to do engine overhaul??? what symptoms bike show when it requires overhaul???

    Also how much Km engines usually last on our Pakistani bikes with proper care???

    How does bike behave when clutch plates are worn out???? and how long these usually last???

    Thanks in advance

  2. #2
    Senior PakWheeler Follow
    asjdsm's Avatar
    Join Date
    Apr 2009
    Location
    Islamabad
    Age
    30
    Posts
    3,477
    Follows
    4
    Following
    0
    Mentioned
    57 Post(s)
    Tagged
    3 Thread(s)
    Problems Posted
    0
    Problems Solved
    1
    Best Answers
    0
    Good Answers
    0

    Default

    Quote Originally Posted by gull_s_777 View Post
    Hello everyone


    I need some info about when to do engine overhaul??? .. what symptoms bike show when it requires overhaul???

    when its smoking from exhaust .. it loses power

    Also how much Km engines usually last on our Pakistani bikes with proper care???
    should last at least 50k+ kms .. with proper care..

    How does bike behave when clutch plates are worn out???? and how long these usually last???

    doesnt gets power with revs.. race ziada hothi ha and speed kam hothi ha.. and also charai pa mushkil sa charthi ha.. and double sawari pa power bhoth kam ho jathi ha..


    Thanks in advance
    .. for more info get ur bike to a good and reliable mechanic.. they are expert at these things..

  3. #3
    Senior PakWheeler Follow
    hidalgo's Avatar
    Join Date
    Mar 2011
    Location
    Rawalpindi
    Age
    26
    Posts
    6,627
    Follows
    2
    Following
    0
    Mentioned
    148 Post(s)
    Tagged
    16 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Quote Originally Posted by gull_s_777 View Post
    Hello everyone

    I need some info about when to do engine overhaul??? what symptoms bike show when it requires overhaul???

    Also how much Km engines usually last on our Pakistani bikes with proper care???

    How does bike behave when clutch plates are worn out???? and how long these usually last???

    Thanks in advance
    clutch plates worn out = more rpms but bike will not run.chekhany ga bhagay ga nahi
    legend will revive soon

  4. #4
    Senior PakWheeler Follow
    Automotorsport_Lover's Avatar
    Join Date
    May 2008
    Location
    Lahore
    Age
    25
    Posts
    3,834
    Follows
    5
    Following
    2
    Mentioned
    82 Post(s)
    Tagged
    6 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Symptoms of engine wear out...

    Eating oil, smoke from silencer, strange sounds from engine etc.

    If ur bike is eating oil.. it would give smoke, it might not be visible at idle RPM, but give heavy throttle to a standing bike and u can see grey smoke in minor cases.. at extreme black smoke.

    at Idle if ur bike makes gud gud gud gud sound... jese dhakay say chal rai hai.. it might mean crankshaft bearing is loose... which means trouble in near or future.

    grinding sounds mean trouble...

    clutch plates wear out when ur bik's rpm and sound is normal but its speed is not upto the mark.. specially pick up is bad.
    U can even hear grinding sound when u move the bike in 1st gear with heavy throttle... grrrr... power loss due to clutch slipping...

    when clutch plates are gone bike wont alos get to the full speed and would get slow while climbing overhead bridges etc wont maintain speed..

  5. #5
    Senior PakWheeler Follow
    Automotorsport_Lover's Avatar
    Join Date
    May 2008
    Location
    Lahore
    Age
    25
    Posts
    3,834
    Follows
    5
    Following
    2
    Mentioned
    82 Post(s)
    Tagged
    6 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    bikes can last 75,000 Kms + with good care and clutch can also last that long, but usually due to our own bad driving style clutch gives away a little earlier...

  6. #6
    Senior PakWheeler Follow
    gull_s_777's Avatar
    Join Date
    Feb 2012
    Location
    Bahawalpur
    Posts
    2,279
    Follows
    1
    Following
    0
    Mentioned
    90 Post(s)
    Tagged
    7 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    thanks for replies guys....
    my friend has a very old CD70 and he doesn't even remember when was the last time its engine was overhauled, now bike doesn't give smoke at all, engine works always never stops but it has lost most of its power and has very slow pickup and hardly can climb ascendings...
    So what do you guys think about it??? no smoke so needn't engine overhaul yet????

  7. #7
    Senior PakWheeler Follow
    asjdsm's Avatar
    Join Date
    Apr 2009
    Location
    Islamabad
    Age
    30
    Posts
    3,477
    Follows
    4
    Following
    0
    Mentioned
    57 Post(s)
    Tagged
    3 Thread(s)
    Problems Posted
    0
    Problems Solved
    1
    Best Answers
    0
    Good Answers
    0

    Default

    compression test is needed to verify if new piston etc and therby overhaul is needed or not..
    if test is satisfactory its clutch plates are worn out.. just replace them..

  8. #8
    Senior PakWheeler Follow
    gull_s_777's Avatar
    Join Date
    Feb 2012
    Location
    Bahawalpur
    Posts
    2,279
    Follows
    1
    Following
    0
    Mentioned
    90 Post(s)
    Tagged
    7 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Quote Originally Posted by asjdsm View Post
    compression test is needed to verify if new piston etc and therby overhaul is needed or not..
    if test is satisfactory its clutch plates are worn out.. just replace them..
    Its RPM matches the speed aka RPM also rise slowly with bike so i guess clutch plates are ok.....
    can you please tell a little more about compression test???

  9. #9
    Senior PakWheeler Follow
    asjdsm's Avatar
    Join Date
    Apr 2009
    Location
    Islamabad
    Age
    30
    Posts
    3,477
    Follows
    4
    Following
    0
    Mentioned
    57 Post(s)
    Tagged
    3 Thread(s)
    Problems Posted
    0
    Problems Solved
    1
    Best Answers
    0
    Good Answers
    0

    Default

    Quote Originally Posted by gull_s_777 View Post
    Its RPM matches the speed aka RPM also rise slowly with bike so i guess clutch plates are ok.....



    can you please tell a little more about compression test???
    compression test is done to find if the piston rings are making a good grip and seal for proper combustion in closed chamber .. it also tells if the problem is with piston/cylinder bore or the valves..

    i think this is the most probable cause of ur issue..

  10. #10
    Senior PakWheeler Follow
    gull_s_777's Avatar
    Join Date
    Feb 2012
    Location
    Bahawalpur
    Posts
    2,279
    Follows
    1
    Following
    0
    Mentioned
    90 Post(s)
    Tagged
    7 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Quote Originally Posted by asjdsm View Post
    compression test is done to find if the piston rings are making a good grip and seal for proper combustion in closed chamber .. it also tells if the problem is with piston/cylinder bore or the valves..

    i think this is the most probable cause of ur issue..
    can you tell me how is it done???
    do they use some special instrument for this or it is some desi jugaar like putting hand at the silencer and apply the kick etc...

  11. #11
    Senior PakWheeler Follow
    mfdarvesh's Avatar
    Join Date
    Jul 2007
    Location
    Islamabad
    Posts
    2,807
    Follows
    4
    Following
    0
    Mentioned
    30 Post(s)
    Tagged
    1 Thread(s)
    Problems Posted
    0
    Problems Solved
    1
    Best Answers
    0
    Good Answers
    2

    Default

    Quote Originally Posted by gull_s_777 View Post
    can you tell me how is it done???
    do they use some special instrument for this or it is some desi jugaar like putting hand at the silencer and apply the kick etc...
    compression test is done usually by disconnecting electrical system and fuel. Then removing the Spark Plug and instead of plug, a special thing with gauge is inserted into combustion chamber. Now the kick is pressed three or four time and reading is noted. This is called Dry Compression Test

    After that, some quantity of engine oil is inserted into the combustion chamber and then again kicked is pressed for three-four times again reading on gauge is noted. This is called Wet Compression Test.

    Both readings have certain levels and difference between both tests should be very small. If difference is wide then there are chances that Cylinder is not sealed and oil is going down.

    Remember, engine is more like an air compressor, if it can compress air, it can generate power.
    I hope you will be able to understand Science of Compression Test.

    But I real, I have never seen an mechanic using this type of Test on Bike in Islamabad, instead they use they Ustadi Jugars.

  12. #12
    Senior PakWheeler Follow
    asjdsm's Avatar
    Join Date
    Apr 2009
    Location
    Islamabad
    Age
    30
    Posts
    3,477
    Follows
    4
    Following
    0
    Mentioned
    57 Post(s)
    Tagged
    3 Thread(s)
    Problems Posted
    0
    Problems Solved
    1
    Best Answers
    0
    Good Answers
    0

    Default

    no juggar .. but mechanic can tell from the experience or feel..also there is a pressure gauge that is used to test .. good mechanics do have it.. and use it properly .. but most just tear the engine rather then first testing.. and do many replacements .. each is good.. waisa to check if u are getting good compression.. try to kick the kick with ur hand rather then foot .. if u can then its probably not making good compression.. or alternativly one can use foot to gauge if compression is sufficient..,.laikin ya tho wo log sai bta saktha hain jinho ko experience ho..

  13. #13
    Senior PakWheeler Follow
    gull_s_777's Avatar
    Join Date
    Feb 2012
    Location
    Bahawalpur
    Posts
    2,279
    Follows
    1
    Following
    0
    Mentioned
    90 Post(s)
    Tagged
    7 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Quote Originally Posted by Automotorsport_Lover View Post
    bikes can last 75,000 Kms + with good care and clutch can also last that long, but usually due to our own bad driving style clutch gives away a little earlier...
    by bad driving style, you are referring to "Frequent Shifting" or "Shifting at high RPMs" or something else????

  14. #14
    Senior PakWheeler Follow
    Automotorsport_Lover's Avatar
    Join Date
    May 2008
    Location
    Lahore
    Age
    25
    Posts
    3,834
    Follows
    5
    Following
    2
    Mentioned
    82 Post(s)
    Tagged
    6 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Driving with hand on teh clutch... no free play in the clutch... jump starts etc

  15. #15
    Senior PakWheeler Follow
    Xulfiqar's Avatar
    Join Date
    Aug 2003
    Location
    Other
    Age
    38
    Posts
    24,405
    Follows
    131
    Following
    0
    Mentioned
    3991 Post(s)
    Tagged
    94 Thread(s)
    Problems Posted
    0
    Problems Solved
    4
    Best Answers
    0
    Good Answers
    6

    Default

    coasting at high speed with the clutch pulled also has a bad effect - leave it be. shifting with excessive slip causes the clutch to overheat and grind itself, also when you install new plates - it is vital that they atleast be left in oil for 5 hours prior to installation.

    If the plain plates have nubs then place each nub so that they are equally lined across the 360 degree range. Most bike mechanics in Pakistan forget this, If the clutch housing is retained by a nut then it is advised to use threadlock to make sure it does not shake itself loose.

    A cheap trick to remove the clutch basket is to jam a rag of cloth between the primary drive gear and the basket
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

+ Reply to Thread

User Tag List

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •