Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: MikeM on April 03, 2014, 02:13:31 PM

Title: fork oil seals
Post by: MikeM on April 03, 2014, 02:13:31 PM: want to make sure these will not cause any issues

http://www.ebay.co.uk/itm/Honda-CB550K-Four-1974-78-Front-Fork-Oil-Seals-QR354810-/321143607716?pt=UK_Motorcycle_Parts_13&hash=item4ac5a691a4

also do you guys take allen bolt out first or top nut? or does it not matter
Title: Re: fork oil seals
Post by: matthewmosse on April 03, 2014, 02:35:07 PM: Allen bolt first I belive, that is how I do it anyway, if the allen bolt won't come a broom handle with a point cut into it down the fork and hammered in once the spings are out I seem to recall, though it is a decade since I had to resort to that.
Title: Re: fork oil seals
Post by: MarkShelley on April 03, 2014, 03:42:24 PM: Loosen the top bolt whilst they are still clamped on the bike. A whole lot easier that when they are off! ;D
Title: Re: fork oil seals
Post by: Johnwebley on April 03, 2014, 10:00:40 PM: when I did my seals,after removing wheel,brake bits etc,just drain the oil,and undo the allen bolt,and slide the fork end off,
you can leave all the rest on the bike,
Title: Re: fork oil seals
Post by: MikeM on April 04, 2014, 08:03:25 PM: so whats the knack for getting this allan bolt out, I have a 6mm allen key on a socket but the whole bottom part is spinning

shock is still connected to the bike with top nut still done up tight ???
Title: Re: fork oil seals
Post by: Bitsa (Ralph Wright - RIP) on April 04, 2014, 08:13:05 PM: Mike,
Sorry to sound like a broken record but in my day you inserted a blank steel rod about the same size as the Allen bolt head and belted it with a hammer a couple off times.This acts like an impact driver and usually does the trick 98 out of a 100. The Allen bolt starts to undo, a bit like a x head screw that will not shift.Most costumers if they saw this operation cringed but it worked.
Cheers
Bitsa
Title: Re: fork oil seals
Post by: MikeM on April 04, 2014, 08:20:09 PM: so its rust around the threads your trying to break ?

this is what I am using

(http://i974.photobucket.com/albums/ae228/INEEDMOREPICS/6mmsocket_zps696273a5.jpg) (http://s974.photobucket.com/user/INEEDMOREPICS/media/6mmsocket_zps696273a5.jpg.html)
Title: Re: fork oil seals
Post by: Trigger on April 04, 2014, 08:20:40 PM: I always use an air gun. What you can try Mike, is put your allen in a drill and switch it to reverse hammer. This should vibrate it out.
Title: Re: fork oil seals
Post by: Trigger on April 04, 2014, 08:23:10 PM: The allen bolt has a copper washer which acts as a seal. You must break the seal. The pressure of the spring should help it from turning.
Title: Re: fork oil seals
Post by: Bitsa (Ralph Wright - RIP) on April 04, 2014, 08:43:14 PM: Plus 1 with trig or just belt the Allen key you have in the socket it will come undone also squirt some releasing fluid on it b4
Cheers
Bitsa
Title: Re: fork oil seals
Post by: LesterPiglet on April 04, 2014, 10:15:33 PM: Air gun is the way, or a drill in reverse might get it. If you don't turn the tool fast enough the innards just turn as well.
Title: Re: fork oil seals
Post by: Norniron on April 04, 2014, 10:28:21 PM: Hey mike,u can use that socket,put the fork leg in a vice upside down.put that socket in a t/bar.now turn anticlockwise while tapping it with a hammer.the shock should break the seal.
This is if u dont have access to an impact driver or an airgun
Title: Re: fork oil seals
Post by: Bryanj on April 05, 2014, 11:18:34 AM: If they have never been out before there will be some sealant in the threads which is where the air gun works or as somebody else said remove the top nut and spring then use a sharpened broom handle to stop the damper rod turning
Title: Re: fork oil seals
Post by: MikeM on April 14, 2014, 02:42:55 PM: so ended up clamping these in a workmate and using the socket allen key got it out,

must admit did not use pressure more a quick snap action and it came out

anyway, got the new seals in quick polish up of bottoms...... did not take notice though of which way spring goes in, take it that at it goes in tightly wound end in first ?

also trying to find in manual how much fork oil to put in?

no 1 way which I think is correct

(http://i974.photobucket.com/albums/ae228/INEEDMOREPICS/PICT0371_zps294a8033.jpg) (http://s974.photobucket.com/user/INEEDMOREPICS/media/PICT0371_zps294a8033.jpg.html)

or is it no 2 way

(http://i974.photobucket.com/albums/ae228/INEEDMOREPICS/PICT0372_zps81f03870.jpg) (http://s974.photobucket.com/user/INEEDMOREPICS/media/PICT0372_zps81f03870.jpg.html)
Title: Re: fork oil seals
Post by: MikeM on April 14, 2014, 02:50:42 PM: does 160 cc sound right... got that for 500 four
Title: Re: fork oil seals
Post by: Lobo on April 14, 2014, 03:10:58 PM: Yup, my 500 K1/K2 manual states 160cc, and 185-191cc for the CB550
Title: Re: fork oil seals
Post by: MikeM on April 14, 2014, 03:25:42 PM: I only had the info for the 500 so for my 550k3 185 cc ?
Title: Re: fork oil seals
Post by: deltarider on July 14, 2014, 06:54:43 PM: The question is which end goes in first.
Title: Re: fork oil seals
Post by: MikeM on July 14, 2014, 07:48:58 PM: i just took note of the way they came out, think it was groove side down ?
Title: Re: fork oil seals
Post by: deltarider on July 14, 2014, 09:35:32 PM: Quote
think it was groove side down

I'm afraid I don't understand. Groove means what?
Title: Re: fork oil seals
Post by: MikeM on July 14, 2014, 09:42:23 PM: i got the pattern ones and had a circular groove round the edge, that went in groove facing towards the oil

post a pic up of yours and one of the guys will confirm which way it goes