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Technical & Reference Section => Tech and Restoration => Topic started by: FuNMoNsTeR on March 20, 2007, 12:10 PM

Title: PK Ripper........ Do i or Dont i ?
Post by: FuNMoNsTeR on March 20, 2007, 12:10 PM

As you probably know i have a Black Loopy ripper with original finish... Do i strip it and repowder or leave it? Do i just strip the top of the rear tri where the marks are and touch it up to try and keep as much of the original finish as possible?
   I also have a graphite Uni seat to remove.... I was going to saw it off about an inch above the seat tube and then give the remaining protuding piece a sharp whack straight downward with a soft Thor hammer... Do you reckon this will free it?  Any help or advice appreciated as always :)
Frameset
(http://www.radbmx.co.uk/archive/albums/w3/BMXtra/DSCF6379.jpg)


SeatPost
(http://www.radbmx.co.uk/archive/albums/w3/BMXtra/DSCF6386.jpg)

Rear Tri Marks
(http://www.radbmx.co.uk/archive/albums/w3/BMXtra/DSCF6385.jpg)
(http://www.radbmx.co.uk/archive/albums/w3/BMXtra/DSCF6392.jpg)

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: harris on March 20, 2007, 12:14 PM

i would leave it as is.
cut the post     and run an undersized drill down it until its nearly throu   then hacksaw blade inside.

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: Frosty on March 20, 2007, 12:20 PM

the frame looks pretty good, leave the patina!!

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: kdw712 on March 20, 2007, 12:21 PM

i'd leave it too - survivors are the best
build up with other parts that have the same kinda aged look to them


with the seat try everything before cutting it (not sure if you have already)

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: ORB on March 20, 2007, 12:30 PM

I like taking stuck posts out, and it can be a bitch.

that is graphite me thinks, thus should be fairly easy, try a bit of petrol in there, that may help, then twisting in a vice, if that fails, try drilling it with care, then, a hack saw blade.

Some of them can be a bitch, but i think this one will let go.

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: FuNMoNsTeR on March 20, 2007, 01:07 PM

Thanks guys :)
  I didnt really want to do any sort of twisting as ripper seat tubes dont respond well to that sort of stress... I will soak the post first and give a go though :)  If that doesnt work i will try Dannys method  ;)

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: brass monkey! on March 20, 2007, 01:10 PM

Quote from: ORB on March 20, 2007, 12:30 PM

..... try a bit of petrol in there, that may help,

.....and don't forget to extinguish any smoking materials  beforehand matey !!  ;) ;)

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: pickle on March 20, 2007, 03:31 PM

Is it worth re powdering it and spending all that money on if you're going to ride it??  you know it'll only last a week or two before it snaps  ;)

Leave as is......i like the survivor ones  :daumenhoch:

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: Bob_Acid on March 20, 2007, 04:18 PM

I remember having to get a uni post out of a frame as a kid and not having much trouble banging it out with with a screw driver and a hammer ::)

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: jT Racing on March 20, 2007, 06:19 PM

get a hairdryer, heat the seattube, twist out seatpost. :daumenhoch:

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: jT Racing on March 20, 2007, 06:20 PM

oh, and a tiny(and i mean tiny) bit of proper thinners will go between tube and post and work as a lubricant, be sure to rinse off straight away!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: region11 on March 20, 2007, 06:23 PM

As its in such a good original condition, id leave it  :)

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: theRuler on March 20, 2007, 07:52 PM

strip it and refinish it. it's only paint. may as well make it look as minty as it deserves to.

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: scary_leary on March 20, 2007, 07:53 PM

Could you not just drill a hole near the top of the post.
then push a long metal rod through... wide grip, turn and pull

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: gavking on March 20, 2007, 08:03 PM

Yeah the way I would do it is as scary leary says"""
I normaly empty a can of wd40 down it leave it over night then drill a hole through the top of the post. probs about 8mm if ya can then I put an allen key through that hook it with the end of a long ring spanner and turn. Heat the frame up if you can but not hot just warm.
Then when it turns I put a seat on and twist in the normal way to get it out.
Just done it on a jammed post in my profile frame and it worked straight away.

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: Jazzchimp on March 20, 2007, 08:06 PM

The posts react with the alloy of the ripper, they're notorious for it.

my advice is grease your pole well!!

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: Jazzchimp on March 20, 2007, 08:07 PM

Oh and how about bolting a stem on to the post, then giving it some with a large lever??!!

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: digitaltransfer on March 20, 2007, 09:36 PM

Quote from: FuNMoNsTeR on March 20, 2007, 12:10 PM

As you probably know i have a Black Loopy ripper with original finish... Do i strip it and repowder or leave it? Do i just strip the top of the rear tri where the marks are and touch it up to try and keep as much of the original finish as possible?
   I also have a graphite Uni seat to remove.... I was going to saw it off about an inch above the seat tube and then give the remaining protuding piece a sharp whack straight downward with a soft Thor hammer... Do you reckon this will free it?  Any help or advice appreciated as always :)
Frameset
(http://www.radbmx.co.uk/archive/albums/w3/BMXtra/DSCF6379.jpg)


SeatPost
(http://www.radbmx.co.uk/archive/albums/w3/BMXtra/DSCF6386.jpg)

Rear Tri Markser
(http://www.radbmx.co.uk/archive/albums/w3/BMXtra/DSCF6385.jpg)
(http://www.radbmx.co.uk/archive/albums/w3/BMXtra/DSCF6392.jpg)

someone I knew used to ride for SE BITD Sam a lady now cant remember her surname but she had the exact same frame and orig set up I will find out and get some pics she used to live round the corner form me

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: FuNMoNsTeR on March 21, 2007, 01:24 PM

Good idea with the stem Jazzchimp... I have already sawn the post off though  :D
 
The seat post is out now :)   Zero damage  :D
Thanks all...i will post a pic in a few minutes  :)

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: FuNMoNsTeR on March 21, 2007, 03:09 PM

The Piccys of the seat tube... and remnants of the naughty seatpost in question  :D 

(http://www.radbmx.co.uk/archive/albums/w3/BMXtra/DSCF6587.jpg)
(http://www.radbmx.co.uk/archive/albums/w3/BMXtra/DSCF6589.jpg)
(http://www.radbmx.co.uk/archive/albums/w3/BMXtra/DSCF6593.jpg)
(http://www.radbmx.co.uk/archive/albums/w3/BMXtra/DSCF6595.jpg)

Title: Re: PK Ripper........ Do i or Dont i ?
Post by: jT Racing on March 21, 2007, 05:36 PM

now get it stripped and coated :daumenhoch: in your frontroom with a porn vid playing :daumenhoch: