Webra 160 help

[George Kennie]

Great idea, Keith. Great shot too, clearly demonstrating the
application. Good work!

Keith Black wrote:

>   I agree totally with Dave's statement, if you don't use method 1
> below you will damage the conrod! BTW, I have had a couple of
> engines that required "some force" to remove the wrist pin, and
> others that required more force than I could provide. This lead me
> creating a simple tool to pry the wrist pin out. Get a long 4 mm
> screw and a butterfly nut and thread it through a hard flat steel
> rod.  Screw the end of the 4 mm screw into the wrist pin and then
> turn the butterfly nut down against the steel rod that is against
> the exhaust port.  To protect the side of the piston I also put
> popsicle sticks between the piston and the inside wall of the
> crank case. This is sort of a reverse gear puller. See picture at
> link below: http://www.fototime.com/865BF0EA2103D32/orig.jpg Keith
> Black ----- Original Message -----
>
>      From: DaveL322 at comcast.net
>      To: discussion at nsrca.org
>      Sent: Wednesday, June 01, 2005 9:36 AM
>      Subject: Re: Webra 160 help
>       1st method is the way to go. If the second method works
>      - it is only because there is enough play in the conrod
>      that the conrod (and/or possibly the wrist pin, or
>      piston) need to be replaced.  The conrod will most
>      certainly need to be replaced if the "pry" method is
>      used. Dave
>
>           -------------- Original message
>           --------------One way, the way I have done
>           it. Pull the head and the sleeve, the sleeve
>           should slide out; if not I put a wood dowel in
>           the exhaust port and nudge it up using a prop
>           installed then you can grip it and move it
>           out. The sleeve is aluminum so use care. Go in
>           through the exhaust port with a narrow plier
>           or hemostat and remove the circlip holding the
>           wrist pin in the piston, you can do this in a
>           baggy if you dont have a spare circlip cause
>           the clip might get away from you. Then use one
>           of the head bolts and thread it into the wrist
>           pin through the exhaust port and pull the pin,
>           this might take some force depending on how
>           much then engines been ran. If you can clean
>           any crude out thats in the pin area that might
>           help. The piston will come off, the rod will
>           fall off the crank and come out the
>           cylinder. An alternate way that I have heard
>           about is to remove the sleeve and position the
>           rod so you can pry it off the crank leaving
>           the piston and rod together. Brian
>
>           Wes Stafford <2flyrc at 3states.net> wrote:
>
>                Hello All,
>                I need help on changing the rear
>                bearing on a Webra 160. How do you
>                remove the rod from the crank?
>                Thanks,
>                Wes
>
>                ===
>                =============================================
>
>                To access the email archives for
>                this list, go to
>                http://lists.f3a
>                us/pipermail/nsrca-discussion/
>                To be removed from this list, go to
>                http://www.nsrca.org/discussionA.htm
>
>                and follow the instructions.
>
>                List members email returned for
>                mailbox full will be removed from
>                the list.
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20050602/b5920109/attachment.html