K2 / Proflex Riders Group

General => Tech Forum => Topic started by: SLIM on March 12, 2006, 06:46:46 am

Title: girvin ods
Post by: SLIM on March 12, 2006, 06:46:46 am

just stripped my shock off the girvin ..
put the fresh oil in to the required level ( 44 mm from the top ) according to rapid descents page

but the oil seems to be swishing around inside ?

is this normal ?    have i done it right ?

ps , nice tip on how to strip them !!!

Title: Re: girvin ods
Post by: Simon on March 12, 2006, 09:21:46 am

Sounds like you've done everything correctly,
according to my tech force upgrade instruction
like you say 44mm measured from the top piston removed (10.4cc) front
Rear 53mm (12.4cc),
is the swishing noise when you cycle the damper when removed from the bike  ???
or with it fitted whilst riding  ???
if its when removed then thats okay,thats how mine sounded when I changed the damping fluid.

Simon.  

Title: Re: girvin ods
Post by: orange on March 12, 2006, 05:51:07 pm

I got the swishing noise too - I assumed it was bubbles of air in the oli as it froths up.

Title: Re: girvin ods
Post by: SLIM on March 12, 2006, 07:29:17 pm

simon
its with it off the bike
cycled the piston and it works fine
little slow on the out stroke and doesn`t return all the way out , but no spring on , so
when the piston is pulled all the way out ,
and i gave it a shake , the oil gave a swishing sound
so i thought i had`nt put enough in

so it must be ok then

thanks for the answers guys

UPDATE = BACK ON , WORKS FINE !!!!!

Title: Re: girvin ods
Post by: Colin on March 12, 2006, 09:33:18 pm

Hi,
I've been planning on doing the Oil change modification for years..............and keep putting it off ................How did yours go?

Did you do front and back ODS shocks?

What weight oil did you use?

Same weight front and back?

What did you use to unscrew the end cap? I've read you need a "pin spanner" but I'm not sure what that is...........? Is it something that fits in the two little recess holes in the end?

Thanks
Col.

Title: Re: girvin ods
Post by: SLIM on March 13, 2006, 12:54:05 am

 i did mine a little different from the description on rds

first YES you need a pin spanner, but mine was loose enough , so i didn`t need one



once thats off its easy enough ,



if you replace all the elastomers ( mine are now rocks by the way ) and the spacers / cups back on in the order they came off in , except for the bottom one ,then put the piece you need the pin spanner for on at the end with the bottom cup,



you should then have just enough room for the large nut



and just keep on tightening it until it pulls all the internals out



so you have

black adjuster ( with ridges )

cup               ( bell shaped / bronze )

1 elastomer

black spacer

2 elastomer

silver shock cup   ( pin spanner )

bottom cup

large nut          ( off bottom of plunger rod )

i used a 7.5 wt ( cos im light , recomends 10 /12 )

Title: Re: girvin ods
Post by: orange on March 13, 2006, 06:00:11 am

I'm 13 stone (84kg) and used 10 wt on the Vectors and I think 20wt on the rear ODS (though may have been 10wt). Front spring is 150lbs and rear is 350lbs. Suits me fine this way.

Be brave go for it - if I can do it anybody can!!