Rattle trap sound from my engine

  • dfinnegan71
  • dfinnegan71's Avatar Topic Author
  • Offline
  • User
  • User
    Registered
  • Posts: 104
  • Thanks: 2

Rattle trap sound from my engine

26 Jun 2012 16:48 - 26 Jun 2012 17:03
#531931
After I changed out my base gasket and head gasket, I had trouble with the cam chain. Some of you guys helped my get that straightened out. But now that it's back together I have some serious noise coming from the right side. Number 4 cylinder seems to sound like forks in a blender! I attached a video, take a look /listen and tell me what you think.

1981 GPZ 550 mild custom
Last edit: 26 Jun 2012 17:03 by dfinnegan71.

Please Log in or Create an account to join the conversation.

  • oldkaws4ever
  • oldkaws4ever's Avatar
  • Offline
  • User
  • User
    Registered
  • Have no regrets...... You only live once.
  • Posts: 1641
  • Thanks: 11

Re: Rattle trap sound from my engine

26 Jun 2012 17:18
#531936
Im gonna say either its, a really bad exhaust leak ( did u replace the copper gaskets? ) Or its a rod knock, my 650 sounded an awful lot like that right before she threw a rod on the highway. I ope its just an exhaust leak.
74 Z1a 900 (Apart and making it better than ever)
77 Kz 650b (Threw a rod, going to sandwich in a 900 or 1000 motor)
76 Kz 400d
05 ninja zx-636
81 Kz 750 Ltd
Darien, Illinois

Please Log in or Create an account to join the conversation.

  • dfinnegan71
  • dfinnegan71's Avatar Topic Author
  • Offline
  • User
  • User
    Registered
  • Posts: 104
  • Thanks: 2

Re: Rattle trap sound from my engine

26 Jun 2012 17:37
#531944
Dam! I hope its' just a bad exhaust leak too! When you say rod do you mean your piston rod? I didn't replace those copper gaskets. I'm gona do that and re-install the exhaust first. Than take another listen. thanks.
1981 GPZ 550 mild custom

Please Log in or Create an account to join the conversation.

  • Tomolu5
  • Tomolu5's Avatar
  • Offline
  • User
  • User
    Registered
  • Posts: 421
  • Thanks: 45

Re: Rattle trap sound from my engine

26 Jun 2012 17:44
#531945
If your a smoker, an exhaust leak at the head is pretty easy to spot, just blow some smoke at it and watch. If your not a smoker, you might as well start now, things probly gonna drive you to it:D
Mine:
04 Honda rebel 250(wifes)
04 GSXR 750(bolt on galore)
98 CBR 600F3(filter, pipe, adjustable cam sprokets, dyno tune)
76 KZ900A (LTD gauge pods, crash bars, LTD(style)pipes, dyna coils and ignition,headwork and mild port cleanup by cavanaugh racing, K&N filter pods, heck I dunno.

Please Log in or Create an account to join the conversation.

  • oldkaws4ever
  • oldkaws4ever's Avatar
  • Offline
  • User
  • User
    Registered
  • Have no regrets...... You only live once.
  • Posts: 1641
  • Thanks: 11

Re: Rattle trap sound from my engine

26 Jun 2012 17:46
#531946
me too!! Yeah piston rod. Was it doing this before the taredown? If not im banking on the copper gaskets.
74 Z1a 900 (Apart and making it better than ever)
77 Kz 650b (Threw a rod, going to sandwich in a 900 or 1000 motor)
76 Kz 400d
05 ninja zx-636
81 Kz 750 Ltd
Darien, Illinois

Please Log in or Create an account to join the conversation.

  • dfinnegan71
  • dfinnegan71's Avatar Topic Author
  • Offline
  • User
  • User
    Registered
  • Posts: 104
  • Thanks: 2

Re: Rattle trap sound from my engine

26 Jun 2012 17:55 - 26 Jun 2012 18:00
#531949
No noise at all before I tore it down, it was running and sounding sweet. It just leaked oil in about 4 spots and was getting worse. Me thinks I shoulda just rode it in its leaky state...Good one Tomolu5 about the smoking!!
I just fired it up again and I can feel the exhaust blowing out on my hand from all 4 cylinders. Those dam flange clip things were a pain in the keister to get lined up right on all 4. I held them on the end of the pipe with a rubber band but I bet they are not seating in there correctly. I didn't realize it would make such a racket!
1981 GPZ 550 mild custom
Last edit: 26 Jun 2012 18:00 by dfinnegan71.

Please Log in or Create an account to join the conversation.

  • oldkaws4ever
  • oldkaws4ever's Avatar
  • Offline
  • User
  • User
    Registered
  • Have no regrets...... You only live once.
  • Posts: 1641
  • Thanks: 11

Re: Rattle trap sound from my engine

26 Jun 2012 18:00
#531952
Good deal, glad it was something simple like this. Z1enterprises.com has exhaust gaskets if you need them :)
74 Z1a 900 (Apart and making it better than ever)
77 Kz 650b (Threw a rod, going to sandwich in a 900 or 1000 motor)
76 Kz 400d
05 ninja zx-636
81 Kz 750 Ltd
Darien, Illinois

Please Log in or Create an account to join the conversation.

  • oldkaws4ever
  • oldkaws4ever's Avatar
  • Offline
  • User
  • User
    Registered
  • Have no regrets...... You only live once.
  • Posts: 1641
  • Thanks: 11

Re: Rattle trap sound from my engine

26 Jun 2012 18:01
#531953
dfinnegan71 wrote: No noise at all before I tore it down, it was running and sounding sweet. It just leaked oil in about 4 spots and was getting worse. Me thinks I shoulda just rode it in its leaky state...Good one Tomolu5 about the smoking!!
I just fired it up again and I can feel the exhaust blowing out on my hand from all 4 cylinders. Those dam flange clip things were a pain in the keister to get lined up right on all 4. I held them on the end of the pipe with a rubber band but I bet they are not seating in there correctly. I didn't realize it would make such a racket!


Im the same way, i like a bike that doesn't leak lol
74 Z1a 900 (Apart and making it better than ever)
77 Kz 650b (Threw a rod, going to sandwich in a 900 or 1000 motor)
76 Kz 400d
05 ninja zx-636
81 Kz 750 Ltd
Darien, Illinois

Please Log in or Create an account to join the conversation.

  • dfinnegan71
  • dfinnegan71's Avatar Topic Author
  • Offline
  • User
  • User
    Registered
  • Posts: 104
  • Thanks: 2

Re: Rattle trap sound from my engine

26 Jun 2012 18:07 - 26 Jun 2012 18:23
#531957
on Z1 site right now ordering up! Finger's crossed that's all it is. I thought I really F'd up something in side that motor....again, finger's crossed.

Let me just double check with you guys. The half cresant clip things that hold the exhuast pipe in place go in with the flanged or curled side facing out, right?
1981 GPZ 550 mild custom
Last edit: 26 Jun 2012 18:23 by dfinnegan71.

Please Log in or Create an account to join the conversation.

  • Tomolu5
  • Tomolu5's Avatar
  • Offline
  • User
  • User
    Registered
  • Posts: 421
  • Thanks: 45

Re: Rattle trap sound from my engine

26 Jun 2012 19:47
#531969
That's how mine went:?
Mine:
04 Honda rebel 250(wifes)
04 GSXR 750(bolt on galore)
98 CBR 600F3(filter, pipe, adjustable cam sprokets, dyno tune)
76 KZ900A (LTD gauge pods, crash bars, LTD(style)pipes, dyna coils and ignition,headwork and mild port cleanup by cavanaugh racing, K&N filter pods, heck I dunno.

Please Log in or Create an account to join the conversation.

  • AaronOregon
  • AaronOregon's Avatar
  • Offline
  • User
  • User
    Registered
  • Live Hard, Ride Free
  • Posts: 36
  • Thanks: 0

Re: Rattle trap sound from my engine

26 Jun 2012 20:01 - 26 Jun 2012 20:02
#531973
Are you sure the pipe is getting hot? It sounded like it wasn't firing to me in the video. This would cause ruckus too. Re-listening to it again, I'm pretty confident that cylinder is not even firing....

Aaron
1980 KZ750E - Pods - 4 into 1
Last edit: 26 Jun 2012 20:02 by AaronOregon.

Please Log in or Create an account to join the conversation.

  • Patton
  • Patton's Avatar
  • Offline
  • KZr Legend
  • KZr Legend
    Registered
  • Posts: 18568
  • Thanks: 2102

Re: Rattle trap sound from my engine

26 Jun 2012 22:20
#532004



Flanged end nests inside clamp grove.

Plain end is fitted toward engine.

Good Fortune! :)
1973 Z1
KZ900 LTD

Attachments:

Please Log in or Create an account to join the conversation.

Moderators: Street Fighter LTD
Powered by Kunena Forum