The BSA A7-A10 Forum

Technical (topic titles must be descriptive) => Frame => Topic started by: Padsta33 on 09.08. 2016 09:46

Title: New fork seal holders ill fitting.
Post by: Padsta33 on 09.08. 2016 09:46
Having just replaced the fork seal holders and seals, they are rubbing I believe on the springs..
Is this normal?
We're purchased from a reputable dealer and they say they've never had an issue with this.
Had to grind the tool also too fit them.
Also between 35-45mph it feels like my front wheel is egg shaped. Have new tires fitted also.
Any suggestions?
Title: Re: New fork seal holders ill fitting.
Post by: muskrat on 09.08. 2016 10:00
G'day Paddy.
You may have inadvertently twisted the yokes (triple clamps) a tad. A bit hard to see with the shrouds on but do the bars feel normal or off a bit one way?
Cheers
Title: Re: New fork seal holders ill fitting.
Post by: Topdad on 09.08. 2016 11:08
I'd check the bead line on the tyre as well.
Title: Re: New fork seal holders ill fitting.
Post by: KiwiGF on 09.08. 2016 11:34
I've read that (most, if not all) pattern/aftermarket  seal holders don't fit the standard BSA tool, so unfortunately it's not surprising if a shop bought tool made for oem holders does not fit. I made a rough tool to do the holder  removal job from a piece of water pipe with an angle grinder, it fits both BSA original and pattern holders, albeit it fits the pattern parts better.
Title: Re: New fork seal holders ill fitting.
Post by: chaterlea25 on 09.08. 2016 11:38
Hi,
Grease the springs with the stickiest grease you can find
The fork shrouds can be centeralised  to a degree by loosening the bottom yoke pinch bolts,
move the shroud to equal all round and carefully re tighten the pinchbolts
+1 on the other suggestions

John
Title: Re: New fork seal holders ill fitting.
Post by: Padsta33 on 10.08. 2016 18:10
I'd check the bead line on the tyre as well.
Yup your correct.  The bead line is certainly out, this is after have a shop fit the tyre for me (my excuse is no tyre irons)
Is this caused by a bad rim?
Cheers
Paddy.
Title: Re: New fork seal holders ill fitting.
Post by: Padsta33 on 10.08. 2016 18:13
Also the spindle doesn't lock tight either? Feels like it's cross threaded. The pinch bolt seems my only saviour.. hmm may need re-tapping or a new spindle....
Title: Re: New fork seal holders ill fitting.
Post by: Padsta33 on 10.08. 2016 18:15
G'day Paddy.
You may have inadvertently twisted the yokes (triple clamps) a tad. A bit hard to see with the shrouds on but do the bars feel normal or off a bit one way?
Cheers
Yeah the bars feel okay....
Title: Re: New fork seal holders ill fitting.
Post by: chaterlea25 on 10.08. 2016 19:10
Hi,
Quote
Also the spindle doesn't lock tight either? Feels like it's cross threaded. The pinch bolt seems my only saviour.. hmm may need re-tapping or a new spindle....

Presuming you are talking about the LH threaded spindle?
If the spindle is not tight  the wheel is not in a fixed position, it can drift to the left
 *warn* VERY RISKY  *warn*
You can find a 9/16LH tap from an older establishhed cycle shop,( they were used on pedal cranks)
to clean up the threads in the fork leg

Get the tyre reseated properly, its not a big job to get right, lazy bastard where you got it fitted *angry*

John
Title: Re: New fork seal holders ill fitting.
Post by: Padsta33 on 10.08. 2016 20:30
Hi,
Quote
Also the spindle doesn't lock tight either? Feels like it's cross threaded. The pinch bolt seems my only saviour.. hmm may need re-tapping or a new spindle....

Presuming you are talking about the LH threaded spindle?
If the spindle is not tight  the wheel is not in a fixed position, it can drift to the left
 *warn* VERY RISKY  *warn*
You can find a 9/16LH tap from an older establishhed cycle shop,( they were used on pedal cranks)
to clean up the threads in the fork leg

Get the tyre reseated properly, its not a big job to get right, lazy bastard where you got it fitted *angry*

John
Cheers John. Has confirmed my concern.
The thread does seat in, but as it starts showing through the other side, it just spins.
Is it just a case of getting the fork leg re cut, or is the spindle knackered?
Yeah I shall be having words with the shop regarding tyre fitting..grrrrr.
Title: Re: New fork seal holders ill fitting.
Post by: chaterlea25 on 10.08. 2016 20:40
Hi Padsta,
Dunno I cant see it from here *conf2*
It could be either or a combination of both?
Its getting hard to find those threaded legs in good condition now *sad2*
Start by posting a pic of the axle, its probably toast tho  *sad2*

John
Title: Re: New fork seal holders ill fitting.
Post by: Padsta33 on 10.08. 2016 21:00
Hi Padsta,
Dunno I cant see it from here *conf2*
It could be either or a combination of both?
Its getting hard to find those threaded legs in good condition now *sad2*
Start by posting a pic of the axle, its probably toast tho  *sad2*

John
Ha ha I'll get pics tomorrow.
Think I meant if the axel is harder steel than the fork cut? God don't say I need new fork legs..... this bloody a10 is having its fair share of front end issues...
Title: Re: New fork seal holders ill fitting.
Post by: Padsta33 on 11.08. 2016 12:54
Okay...update.
Managed to get the thread too bite tight now, and fitted a stainless pinch bolt with nut. Also re-seated tyre on rim and she runs a lot truer now, but still has slight "bump" think it's prob the rim that's shot. Mind you its nearly 60 years old now. 😲
Cheers
Paddy.