Username: Password:

Author Topic: Yet anoher Nighthawk S question  (Read 308 times)

Offline nsrrider

  • New Member
  • *
  • Posts: 11
    • View Profile
  • Bike: CB700SC
Yet anoher Nighthawk S question
« on: December 03, 2017, 02:38:40 PM »
Okay, ran into another stumbling block........I'm replacing the stock exhaust system on the bike and can't figure out how to get the header clamps off the headers.  The collars on the cylinder head end of the pipes are resisting all efforts to remove them.  I've tried penetrant and heat--they don't budge. Can someone enlighten me? Thanks!! 

Offline mollusc

  • Senior Member
  • *****
  • Posts: 2143
  • Gender: Male
    • View Profile
  • Bike: CB700S | NC700X
Re: Yet anoher Nighthawk S question
« Reply #1 on: December 03, 2017, 05:39:40 PM »
Not really sure what you mean.  Each collar has two bolts, and then the collars pull off the studs and slide down the pipes.  It might take a bit of prying the get the collars to budge -- perhaps that's what you mean?
There are no pipe connections that I know of.  I believe the system is solid all the way through, with only a join at the crossover box that allows the two sides to be split.
made of meat

Offline nsrrider

  • New Member
  • *
  • Posts: 11
    • View Profile
  • Bike: CB700SC
Re: Yet anoher Nighthawk S question
« Reply #2 on: December 03, 2017, 06:42:04 PM »
man I can be dumb sometimes.........for some reason I thought I would need the OEM chrome collars to secure the MAC headers......I see they come with their own......geeezzz

Offline Quartermaster35

  • New Member
  • *
  • Posts: 2
  • Gender: Male
    • View Profile
  • Bike: 84 Nighthawk S
Re: Yet anoher Nighthawk S question
« Reply #3 on: December 04, 2017, 08:11:37 AM »
Post a pic of the bike with the new headers installed!
1984 Nighthawk S (Blue / Black)
Iowa

Offline Dindindin

  • Member
  • **
  • Posts: 53
    • View Profile
  • Bike: Nighthawk 700sc
Re: Yet anoher Nighthawk S question
« Reply #4 on: January 22, 2018, 01:48:39 PM »
Ayup, I have a 700 sc which was brought over to here in England. The balancer pipe between the two into ones both sides is rusted. I bought ( 30 quid) a complete 4 into 1 exhaust in stainless...flipping lucky. All bolts came away easy, all four colletes slid straight iut, and new exhaust straight on.  I have fell in love with this bike I inherited. You don't know how hard It is to get bits here in blighty. 

Offline mollusc

  • Senior Member
  • *****
  • Posts: 2143
  • Gender: Male
    • View Profile
  • Bike: CB700S | NC700X
Re: Yet anoher Nighthawk S question
« Reply #5 on: January 22, 2018, 04:56:20 PM »
Ironically though, the first available reverse-engineered replacement x-ring for the 700S petcock was only available from Ireland.


Make sure you check in before ordering any parts -- there have been a lot of workarounds developed for the bits that you can't get any more!
made of meat

 

Copyright © 2006 - 2018 Nighthawk-Forums.com
All Rights Reserved