Honda-SOHC

SOHC.co.uk Forums => CB350/400 => Topic started by: XS850 on August 27, 2024, 07:08:48 PM

Title: Disc nut torque setting
Post by: XS850 on August 27, 2024, 07:08:48 PM: Hello all - does anyone have a torque setting for the front disc (CB400F) securing nuts (4 off) please - canâ€™t find anything in Haynes or the Honda booklets Iâ€™ve got, nor can I find it through a search on here!

Many thanks - Bruce
Title: Re: Disc nut torque setting
Post by: McCabe-Thiele (Ted) on August 27, 2024, 07:19:29 PM: On the 500 that has six 8mm nuts its 13.0 to 16.6 ft lbs the 400 is probably similar setting.
Title: Re: Disc nut torque setting
Post by: taysidedragon on August 28, 2024, 12:23:29 PM: Ted's figure is correct. 8mm bolts on 400f. Use the lock washers as well or shallow nyloc nuts.
Title: Re: Disc nut torque setting
Post by: XS850 on August 28, 2024, 08:12:23 PM: Thanks Ted & Tayesidedragon - is there a lock (tab) washer available as thereâ€™s nothing in the parts fiche? They came off with just a shouldered nut and thereâ€™s limited free bolt (original) length to fit a shouldered locknut or plain locknut with washer!
Title: Re: Disc nut torque setting
Post by: Nurse Julie on August 28, 2024, 09:08:12 PM: No lock washers on those nuts on the 400/4 . Just a flanged nut.
Title: Re: Disc nut torque setting
Post by: taysidedragon on August 29, 2024, 12:17:31 AM: Quote from: Nurse Julie on August 28, 2024, 09:08:12 PM
No lock washers on those nuts on the 400/4 . Just a flanged nut.

There are lockwashers shown in the Honda manual. Were they only fitted to the 350f?
I fitted shallow nyloc nuts to my 400 because there is not enough space for a full height nut.
Title: Re: Disc nut torque setting
Post by: Mikep328 on August 29, 2024, 08:27:35 AM: There are no lock washers shown in the Honda CB400F parts book (page 19) for the four disc attachment nuts, only the shouldered nuts themselves. Maybe a change from the 350 four?
Title: Re: Disc nut torque setting
Post by: McCabe-Thiele (Ted) on August 29, 2024, 09:05:54 AM: My 400 had the flanged nuts as per the parts book & NJs post I don't think my hub had ever been dismantled previously.