2 STROKE WORLD .net

The 2-Stroke Garage => Turning Wrenches => Topic started by: rd400greenhorn on February 18, 2021, 01:59:23 PM

Title: Rd400 fork assembly wtf
Post by: rd400greenhorn on February 18, 2021, 01:59:23 PM
Yeah so, thought it was a quick and easy job..
Apparently iam an idiot 😅

I Cant get the buttom bolt to catch the thread Inside the fork tube

I beleieve i have even tried every combi..
Makes No sense, done it for hours 😅

Its the right bolt as this was Taking apart of a functioning fork 8 months ago..

Anyone 🤔
Title: Re: Rd400 fork assembly wtf
Post by: m in sc on February 18, 2021, 02:03:15 PM
take spring and cap off, insert broom handle.turn fork upside down, press down on assembly . start thread by hand with hex key. if hole isnt lining up, use a cross-head screwdriver, carefully, to align through hole. if that wont work, check make sure threads on bolt or rod arent damaged.
Title: Re: Rd400 fork assembly wtf
Post by: rd400greenhorn on February 18, 2021, 02:20:22 PM
This is basically what i have been doing, just Cant hack it it seems haha.
So wierd i really dont get it
Title: Re: Rd400 fork assembly wtf
Post by: bitzz on February 18, 2021, 02:37:59 PM
Thread a stud into the inner fork tube thingme. Or cut the head off a long bolt and use that
Drop the inner thingme into the fork lower so the stud sticks out of the hole.
Jam broom handle in to hold it in place and flip it upside down
Remove the stud and screw in the bolt.
Don't forget the copper washer and anneal it before you use it.
Title: Re: Rd400 fork assembly wtf
Post by: rd400greenhorn on February 18, 2021, 02:40:51 PM
Yeah so
Does this look right, buttom of the fork
Title: Re: Rd400 fork assembly wtf
Post by: teazer on February 18, 2021, 07:00:00 PM
Yes, but no....

That's the bottom of the stanchion but where's the damper rod and the tapered bottom part?  Take out the damper rod and if it has the bottom part still fitted, slip it off and slide the damper rod back all the way through the fork leg and then refit the bottom hydraulic stop ( the 1" tall aluminum part.


Title: Re: Rd400 fork assembly wtf
Post by: rd400greenhorn on February 19, 2021, 01:28:59 AM
So what about that tapered alu piece at the end of the damper rod?
Do I fit that after from the buttom or? 🤔🤔
Title: Re: Rd400 fork assembly wtf
Post by: rd400greenhorn on February 19, 2021, 09:41:26 AM
Ahh this must be right.
Done it like this and up the buttom of the fork tube

Cought the thread right away...

Jesus.. Please say Its right 😂



Title: Re: Rd400 fork assembly wtf
Post by: rd400greenhorn on February 19, 2021, 09:58:24 AM
Is this right?
Kind of easy to pull the inner tube upwards and out because the snap ring gives..

🤔
Title: Re: Rd400 fork assembly wtf
Post by: rd400greenhorn on February 19, 2021, 12:34:14 PM
I got it 😁
Not like i suggestid, Its done right now. 👌👌
Title: Re: Rd400 fork assembly wtf
Post by: rd400greenhorn on February 19, 2021, 01:15:05 PM
Corrected.

It came together nicely until the spring came in and Cap

Snap ring in the buttom gave away and it could be puller apart..

Anyone?  :umm:
Title: Re: Rd400 fork assembly wtf
Post by: rd400greenhorn on February 19, 2021, 01:22:44 PM
This is how it is put together in the buttom. Held in place by snapring, minus the aluminium piece Which sits in the buttom of the lower leg
Title: Re: Rd400 fork assembly wtf
Post by: rd400greenhorn on February 19, 2021, 01:23:06 PM
...
Title: Re: Rd400 fork assembly wtf
Post by: m in sc on February 19, 2021, 02:10:50 PM
... i have no idea what you did to those forks but that certainly doesnt look right.

Title: Re: Rd400 fork assembly wtf
Post by: RDFL on February 19, 2021, 02:39:15 PM
Quote from: m in sc on February 19, 2021, 02:10:50 PM
... i have no idea what you did to those forks but that certainly doesnt look right.
Glad its not just me, I'm very confused.
Title: Re: Rd400 fork assembly wtf
Post by: rd400greenhorn on February 19, 2021, 03:03:16 PM
Allright...
They are together, not leaking and apparently working like they should 🤷‍♂️😅
. Not sure why the snap ring went out but iam guessing it was not seated proper.

I took a spare set of forks apart, and put these together as the spare pair were, and used the old springs and top alu nut

The springs and top nut i had were to big🤷‍♂️.

To be continued
Title: Re: Rd400 fork assembly wtf
Post by: RustyRD on February 21, 2021, 08:28:47 AM
The OE parts diagram should help, page 31 of the document has an exploded diagram. http://www.2strokeworld.net/forum/index.php?action=dlattach;ts=1549936606;topic=41.0;attach=84 (http://www.2strokeworld.net/forum/index.php?action=dlattach;ts=1549936606;topic=41.0;attach=84)