DT125R ARCHIVE

Members Login
Username 
 
Password 
    Remember Me  
Post Info TOPIC: Failed MOT on Forks


DTR Respected Member

Status: Offline
Posts: 57
Date:
Failed MOT on Forks
Permalink  
 


Took bike for its MOT today, and it failed on -

 front shock absorber seal failed and leaking oil.

nearside front suspension has inadequate damping effect

offside front suspension has inadequate damping effect


Am I better off getting 2 replacements? or if repairing mine, what will be needed to be changed??


__________________


Guru

Status: Offline
Posts: 607
Date:
Permalink  
 

Change fork oil seals and replace fork oil. I think the seals are about £8 for a pair and the fork oil is about £10 a litre, im not too sure as i havn't really been doing any major offroading or doing jumps lately lol.

Getting the fork seals out can be abit of a nightmare so best thing i found was to ram a screwdriver straight through it and try and break it in two and then get the screwdriver underneath it and force it out that way. Once there is abit sticking out just pull at it with pliers.

Also remember there is also a dust seal there too so be sure to get that out first rather then attacking it with a screwdriver lol, Thats how i changed mine anyways but hopefully some people on here might also have some advice to give smile


__________________

Sig



DTR Respected Member

Status: Offline
Posts: 57
Date:
Permalink  
 

cheers for the advice, will I need to change any other componants such as springs etc?? or is it just down to the oil that there working poorly?

__________________


DTR Respected Member

Status: Offline
Posts: 57
Date:
Permalink  
 

and can anyone clarify, is my 2001 model a 3DB1 or 3RN1-on?????

__________________


DTR Senior Member

Status: Offline
Posts: 145
Date:
Permalink  
 

Katie-Jay wrote:

and can anyone clarify, is my 2001 model a 3DB1 or 3RN1-on?????




3RN1 on.

As above though; Change the fork seals first. If your not sure about doing the work yourself then at least remove the forks from the bike and take them to your local bike garage who will probably only charge around the £20-30 mark.

Best way to remove seals without splitting forks is to screw self tappers into the seal and pull it out with pliers. I'd advise against going at it with a screwdriver as there's a pretty high chance you could damage the forks.

Make sure you thoroughly check the forks for any pitting/holes e.t.c... If you find any in the suspension travel make sure you sort that out before fitting new seals or it'll just leak again. (i use araldite to fill holes on forks and it always works)



__________________


Guru

Status: Offline
Posts: 607
Date:
Permalink  
 

Some better advice for ya there, never thought about using a self tapping screw tbh. But then again my screwdriver method has worked for me every time and i've never knackered up the forks. But i might just be lucky biggrin

And yeah they're working poorly cause of the oil, well lack of it. Less oil=Less resistance. So they'll be bouncing all over the place especially in corners lol


__________________

Sig



Nonce

Status: Offline
Posts: 519
Date:
Permalink  
 

never thought about doing it with the forks intact how are you meant to get at the seals tho ?

__________________


DTR Respected Member

Status: Offline
Posts: 57
Date:
Permalink  
 

ive had the oil drained and my god, apart from there being minimal oil in there, its was a grey sludge lol, probably never seen an oil change before

__________________


Guru

Status: Offline
Posts: 607
Date:
Permalink  
 

Well you take the gaitors off obviously lol, then erm i think there is a circlip then a dust seal then the oil seal itself, some older forks have washers between the seals aswell smile

And with the oil been in such a poor state i would put some new but not expensive oil in there put the top bolt on and compress the forks in and out and shake them and stuff just to try and wash out all the $hit lol


__________________

Sig



DTR Respected Member

Status: Offline
Posts: 57
Date:
Permalink  
 

Thanks for the self tapper advice, worked a treat :)

__________________


DTR Respected Member

Status: Offline
Posts: 57
Date:
Permalink  
 

xGINCATx wrote:

Well you take the gaitors off obviously lol, then erm i think there is a circlip then a dust seal then the oil seal itself, some older forks have washers between the seals aswell smile

And with the oil been in such a poor state i would put some new but not expensive oil in there put the top bolt on and compress the forks in and out and shake them and stuff just to try and wash out all the $hit lol



should i not just have them flushed out with diesel???


 



__________________
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.

Tweet this page Post to Digg Post to Del.icio.us


Create your own FREE Forum
Report Abuse
Powered by ActiveBoard