This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

WP Rear Shock Rebuild

H

Harcourt0_0

Joined Jan 2008
5 Posts | 0+
Hi, After reading through the site on occasion and been thoroughly entertained I have just joined.
Ive read somewhere on here, but cant find it again. I think it was nzberg that there are 5mm schrader valve bodies to convert the resovoir fill valve. Can anyone point me to where i can get them from.
Im also looking for parts diagram, manual for a WP 4681 rear shock.
Thanks for any help
 
Have you tried the doc? to point you in the right direction...look down main menu to Owner's Doc. then follow menu to rear suspension. or if you tried that ;go to links and there are a few web links on there...
 
Yeah Ive looked all through the docs and links. There is mention of a schrader valve being fitted and caution on the chain hitting it, but cant find out just what I need.
Where to get valves and manual for shock. Thanks for any help
 
I think if you want to fit a schrader valve you will need to install a bladder kit, both WER and Racetech do bladder kits from memory.
 
Harcourt,
I've yet to come across a 5mm to Shraeder conversion- but thats not to say they are not out there.

Most drill and tap for an 1/8 BSP to Schraeder "tank valve" or you can also go for an modified steel valve like the pic in my gallery.

If you have some lathe and silver soldering skills a 5mm to Schraeder conversion would be a simple task- negating the need to drill your reservoir, but would end up protruding from the ressy a lot more than the other options.
 
http://www.schrader-valves.co.uk/screwinnav.htm

there is also a high pressure valve available that you screw on the schraeder valve, charge to 175 pounds per square inch and then release. this is VERY important. you don't want any HiiiiiSSSSSSSSSSSS no do ya!!!!

i've asked maddel to host it.

word from the pro tuners is that a bladder behaves well but to stick to original is better - just. with the two items i mention it suddenly becomes a whole lot easier!

and NZberg does have the shortest or so he says and i'm not going to argue!

regards

Taffy
 
osberg

how much for that neat re-gas tool. the blue 'cap'?

that is it!!!!!!

regards

Taffy
 
Taffy said:
osberg

how much for that neat re-gas tool. the blue 'cap'?

that is it!!!!!!

regards

Taffy
Click to expand...

Not sure Taff- I've always been tempted to price one, but I never have.......
Have a look on the Race Tech USA site- they might be on there as well ?.
 
Thanks so far for info. Id seen the 5mm nitrogen needle adapter as an option havnt seen them here in UK. The schrader would still be my fist choice if poss. Dont think id go down the bladder route. Id seen those 1/8" schrader valve bodies but im nervous about tapping the the cap out that big as there just aint enough alloy on the protrusion that the 5mm allen bolt sits in (anyone got experience of this?) Incedently WP were insistant that the bolt in my shock was 4mm, as they were about the shock having id nos. which I cant find anywhere. Cant order seals without nos. so they say.
Ausberg the steel tyre valve you show, does the flange screw down over threaded part thus holding it in. If so that would seem a stronger option.
The 5mm to shrader conversion, can you just give me a bit more info, have you tried this one?
Thanks for all the help.
 
i can do better than that.

here is a link to a free video of how to fit it!

http://www.motopowervideo.com/checkout/ ... 50_sc.html

IMHO i would use a lathe to thread it. also, PMK says that you shouldn't run the tap clean through but just kinda get through and then when you fit the schraeder valve it really has to squeeze in.

it might also be worth questioning how high the schraeder valve cap would protrude above the rezzy cap. if it's really short it will be very, very little. you could also consider an alloy cap threaded into the SV recess area so that the chain would simply glance off the 'head'.

i run the correct chain clearance which very few people know how to set. once this is correct i have little doubt that the chain DOESN'T come near the rezzy!

regards

Taffy
 
Cheers Taffy, thats how i was thinking of doing it. As I say though the protrusion of alloy on the inside of the cap aint much think its 10mm od. Ill get some pictures up if I can.
While im on the 22mm nut on the rod is very tight, think its had green loctite on it. Is it safe to heat it being so close to the piston / damper cos it aint moving even with a big bar on the ratchet.
I had a right job getting the cap out of the shock body . That looked liked it had been stuck in with green.
 
Harcourt0_0 said:
Thanks so far for info. Id seen the 5mm nitrogen needle adapter as an option havnt seen them here in UK. The schrader would still be my fist choice if poss. Dont think id go down the bladder route. Id seen those 1/8" schrader valve bodies but im nervous about tapping the the cap out that big as there just aint enough alloy on the protrusion that the 5mm allen bolt sits in (anyone got experience of this?) Incedently WP were insistant that the bolt in my shock was 4mm, as they were about the shock having id nos. which I cant find anywhere. Cant order seals without nos. so they say.
Ausberg the steel tyre valve you show, does the flange screw down over threaded part thus holding it in. If so that would seem a stronger option.
The 5mm to shrader conversion, can you just give me a bit more info, have you tried this one?
Thanks for all the help.
Click to expand...

Harcourt,
seems you are working with other than a 5018 PDS ??

Ausberg the steel tyre valve you show, does the flange screw down over threaded part thus holding it in. If so that would seem a stronger option
Click to expand...
No, the flange is part of the main body- you simply drill out the ressy cap to provide clearance for the 7.65mm dia stem, insert it and install a loctited nut from the ressies inside (requires total reservoir disassembly).
You will require a flat sealing surface on the ressy outer of 14mm dia so the O ring can seal though.

The 5mm to shrader conversion, can you just give me a bit more info, have you tried this one
Click to expand...
?
I've never done one, but cant see it being that hard.
Take the standard WP O ringed bleed plug, chuck it in the lathe and turn the head down so its a neat match for a short as possible Schrader stem and just silver solder the 2 together, then drill a small hole through the WP Plugs solid centre.
Probably not worth paying someone to do it for you, but if you have access to lathe/skills required etc its definetly viable.
 

Similar threads

H
1991 husaberg fe 600
Replies
3
Views
3K
husaberg 600 jim
H
M
rebuild rear shock
Replies
1
Views
1K
bushmechanic
bushmechanic
T
96 fe501 questions
Replies
1
Views
1K
wildbill
wildbill

Register CTA

Register on Husaberg Forum! This sidebar will go away, and you will see fewer ads.

Recent Discussions