RegisterSearchFAQMemberlistUsergroupsLog in
No flywheel . . . need to torque to 43 ft lbs . . . how?

 
Reply to topic    All things Bajaj (Chetak & Legend) Forum Index » Procedures, How To's and Commonly re-asked questions! View previous topic
View next topic

No flywheel . . . need to torque to 43 ft lbs . . . how?
Author Message
JeremyJSutton



Joined: 10 Oct 2010
Posts: 53

Post No flywheel . . . need to torque to 43 ft lbs . . . how? Reply with quote
Just replaced the flywheel on my wife's 2002 Chetak. Have a torque wrench, but don't have the flywheel holding tool. Tried to lock flywheel with wood and tighten. It would bust a fin if I went further. I tried to lock gear teeth on the wood, but the teeth eat the wood for lunch. Not cool with a screw driver approach. Use my 1/2 inch pneumatic impact wrench:
http://www.sears.com:80/shc/s/p_10153_12605_00919982000P?blockNo=1&blockType=G1&prdNo=1&i_cntr=1311574822309
"This 1/2 in. impact wrench provides true power and durability. The impact features a traditional all-metal housing with comfort grip and rubber bumper nose piece, providing comfort and durability as well as protecting the work surface from marring. Provides 340 ft/lbs. of maximum torque. 5.2 lbs.
Forward/reverse power management regulator in rear of tool
Through-handle exhaust"


It has 3 speeds. I used speed 1 until it was not turning the flywheel nut fast and then hit it with the full torque of 3 a couple times (zaps), but am nervous of going to tight. The bike runs and the flywheel does what it should. It seems like it could be tightened a lot more at the full torque setting of 3. The nut is seated pretty far back and I see quite a few threads.

Suggestions?

_________________
Jeremy J. Sutton
2004 Bajaj Chetak
1962 Lambretta TV175 (in pieces)
Mon Jul 25, 2011 6:17 am View user's profile Send private message Visit poster's website
LondonIan42



Joined: 06 Oct 2010
Posts: 39
Location: Gillingham - Dorset UK

Post Reply with quote
With any flywheel you have to retorque once its settled usually anyway otherwise it will likely shear the woodruff key which ain't a good place to be Sad

I wouldn't be too harsh on that nut cos if u strip the thread then thats a new crank assy, if you have the four bolt on type flywheel, you could fabricate using a foot and half say long flat strip of sturdy metal something by drilling two holes that line up with two holes on the flywheel mounting bolts and then let the metal hit the deck which will hold it enough to tighten up and get a decent torque setting on there.

Saving that any P range or VBB type flywheel holder usually can be found for a few pounds on ebay
Mon Jul 25, 2011 1:51 pm View user's profile Send private message
JeremyJSutton



Joined: 10 Oct 2010
Posts: 53

Post Reply with quote
LondonIan42 wrote:
With any flywheel you have to retorque once its settled usually anyway otherwise it will likely shear the woodruff key which ain't a good place to be Sad

I wouldn't be too harsh on that nut cos if u strip the thread then thats a new crank assy, if you have the four bolt on type flywheel, you could fabricate using a foot and half say long flat strip of sturdy metal something by drilling two holes that line up with two holes on the flywheel mounting bolts and then let the metal hit the deck which will hold it enough to tighten up and get a decent torque setting on there.

Saving that any P range or VBB type flywheel holder usually can be found for a few pounds on ebay
How many miles does it need for before the flywheel is re-settled and ready to be re-torqued? I may be able to borrow a flywheel folder from a shop in San Francisco across the Bay from me. Now I am glad that I did not keep torquing it down. It's tight, but could go more. I'll leave it alone for now.

_________________
Jeremy J. Sutton
2004 Bajaj Chetak
1962 Lambretta TV175 (in pieces)
Mon Jul 25, 2011 2:28 pm View user's profile Send private message Visit poster's website
JeremyJSutton



Joined: 10 Oct 2010
Posts: 53

Post Reply with quote
Now I wonder if I should back the nut off a turn just to be safe, thoughts?

_________________
Jeremy J. Sutton
2004 Bajaj Chetak
1962 Lambretta TV175 (in pieces)
Mon Jul 25, 2011 2:48 pm View user's profile Send private message Visit poster's website
LondonIan42



Joined: 06 Oct 2010
Posts: 39
Location: Gillingham - Dorset UK

Post Reply with quote
Not that many miles really, once its got hot and cooled a couple times, loosen it off and then retorque it will see it sorted for many thousands of miles
Mon Jul 25, 2011 2:51 pm View user's profile Send private message
Display posts from previous:    

Reply to topic    All things Bajaj (Chetak & Legend) Forum Index » Procedures, How To's and Commonly re-asked questions! All times are GMT
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


© 2007-2008 Informe.com. Get Free Forum Hosting
Powered by phpBB © 2001, 2005 phpBB Group
 :: 
Design by Freestyle XL / Flowers Online.