K11 Owners Group Forum Index K11 Owners Group
K11 Owners Group
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Exhaust Manifold Nuts

 
Post new topic   Reply to topic    K11 Owners Group Forum Index -> Campfire
View previous topic :: View next topic  
Author Message
Tony627



Joined: 21 Jul 2010
Posts: 20
Location: Kent, England

PostPosted: Mon May 24, 2021 6:57 am    Post subject: Exhaust Manifold Nuts Reply with quote

Hi all.

Wondering if you can help. My exhaust manifold has fractured, (new exhaust methinks). Some idiot of a previous owner has rounded the exhaust nuts. With minimum access does anyone know of an easy way to remove them?

Cheers lads,
_________________
He who laughs last didn't get the joke in the first place!!

1995 K1100LT alias 'Big Red'
Back to top
View user's profile Send private message
Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 9999
Location: Bumf***, WA

PostPosted: Mon May 24, 2021 10:22 am    Post subject: Reply with quote

Deep well 6 point 12mm socket. Tap it onto the nuts with a hammer or light taps with a small sledge hammer.

Or, if you can get them in there, Vise-Grips.

Don't worry if the bolts unscrew from the cylinder head. Happens all of the time.
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
Back to top
View user's profile Send private message
Grunter
Flying Brick Rider


Joined: 30 Sep 2015
Posts: 290
Location: North East England

PostPosted: Tue May 25, 2021 12:36 pm    Post subject: Reply with quote

The last time I had to remove them on a K100, I used a dremmel with a thin cutting disk and split the nuts diagonally Then plenty of heat plus easing fluid and the nut then unscrewed. It is policy to recut the thread before refitting the exhaust and use plenty of copper grease.

The other methods may work, but if it is badly rusted into the head you can just as easily shear the stud off at the base where it enters the cylinder head and you have a possibly more difficult problem.
_________________
No K Bikes at the moment, just a R80 in a kit of many parts. Now add to that a 1994 R1100RS
Back to top
View user's profile Send private message
Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 9999
Location: Bumf***, WA

PostPosted: Tue May 25, 2021 11:40 pm    Post subject: Reply with quote

I've taken lots of headers off of Ks and I suppose it's possible but I've never had one shear on me. But I've had lots of them unscrew the stud instead of the nut coming off.

I swapped headers on a K75 last week and four of six of the studs came out.




Mmmmm... ceramic coated headers:


_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
Back to top
View user's profile Send private message
SugarHillCTD
Site Admin


Joined: 10 Oct 2007
Posts: 4229
Location: Now in Eastern Pennsylvania

PostPosted: Fri May 28, 2021 10:48 am    Post subject: Reply with quote

Nice headers!
_________________
John & Cathy

'92 K100RS4V Pearl White
'04 K1200GT
IBA Several-SS1k, BBG, 50CC NYC to S.F.
Back to top
View user's profile Send private message Send e-mail
Turbine
Brick Rider


Joined: 16 Jul 2007
Posts: 46
Location: South Australia

PostPosted: Mon May 31, 2021 8:59 am    Post subject: Replacement nuts Reply with quote

M8 S304 stainless steel Glenlock nuts. With thick stainless washers.
_________________
Yamaha TX650A
K100RS x 3
K100RT TO RS
Ducati 705F1-87
K1100RSM-93
Back to top
View user's profile Send private message
Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 9999
Location: Bumf***, WA

PostPosted: Wed Jun 02, 2021 7:23 am    Post subject: Reply with quote

SugarHillCTD wrote:
Nice headers!


That's what all the guys say. Laughing
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
Back to top
View user's profile Send private message
Mungrel



Joined: 25 Nov 2021
Posts: 2
Location: Manchester England

PostPosted: Tue Feb 08, 2022 10:56 am    Post subject: Re: Exhaust Manifold Nuts Reply with quote

Tony627 wrote:
Hi all.

Wondering if you can help. My exhaust manifold has fractured, (new exhaust methinks). Some idiot of a previous owner has rounded the exhaust nuts. With minimum access does anyone know of an easy way to remove them?

Cheers lads,



Now I have encountered the same phenomenon, did you successfully remove the rounded nuts? Was it a proper pain or relatively pain -free? I've begun by soaking the lot in easing oil every day for a week.

Cheers

Andy
Back to top
View user's profile Send private message
Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 9999
Location: Bumf***, WA

PostPosted: Wed Feb 09, 2022 7:44 am    Post subject: Reply with quote

Are you using a 6 point deep well socket?

This might work. I've never tried the deep well versions but the regular ones work quite well:
https://www.amazon.com/Tools-BOLT-GRIP-Extractor-5-Piece-3094001/dp/B001W02R0S
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE
Back to top
View user's profile Send private message
Mungrel



Joined: 25 Nov 2021
Posts: 2
Location: Manchester England

PostPosted: Tue Mar 01, 2022 5:14 pm    Post subject: Reply with quote

Flying Duck wrote:
Are you using a 6 point deep well socket?

This might work. I've never tried the deep well versions but the regular ones work quite well:
https://www.amazon.com/Tools-BOLT-GRIP-Extractor-5-Piece-3094001/dp/B001W02R0S


I used a set of nut extractor sockets from Amazon. I soaked the nuts in easing oil 3 times a day for a week. I also purchased a deep reach 12mm socket. The nets were a serious pain to get off, but with patience and a mixture of the nut removal socket and the easing oil, I got the lot off. A great tip is to tighten the nut just a fraction, then reverse the drive and try for the loosen. Repeat and repeat and eventually you'll win
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    K11 Owners Group Forum Index -> Campfire All times are GMT - 4 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group