iaokie requesting help

JPG · Post by **JPG** » Sun Jul 03, 2011 2:49 pm

Key question - Did you get the base also? The part the bench tubes mount/pivot on.

Good news, the infamous melting plastic cam appears in good condition. I believe the follower has separated from the control sheave and that rendered it inoperative.

damagi · Post by **damagi** » Sun Jul 03, 2011 3:23 pm

JPG40504 wrote:Key question - Did you get the base also? The part the bench tubes mount/pivot on.

Good news, the infamous melting plastic cam appears in good condition. I believe the follower has separated from the control sheave and that rendered it inoperative.

He has the base, its in the lower right background of one of the photos.

JPG · Post by **JPG** » Sun Jul 03, 2011 3:38 pm

damagi wrote:He has the base, its in the lower right background of one of the photos.

I went back and discovered that after noticing what appears to be a cover in one of the other pix.

Question is, why is the control cam not on its shaft, and can it be put back on.

iaokie · Post by **iaokie** » Sun Jul 03, 2011 4:42 pm

Yes base doesn't appear to be to bad but will need to paint also
A few more pics of cam too

JPG · Post by **JPG** » Sun Jul 03, 2011 4:50 pm

iaokie wrote:Yes base doesn't appear to be to bad but will need to paint also
A few more pics of cam too

Looks like the camfollower is still attached to the control sheave 'snout' bearing(good news).

Send me an e-mail and I will reply with a Mark VII parts manual in pdf form.

damagi · Post by **damagi** » Sun Jul 03, 2011 6:35 pm

iaokie wrote:Yes base doesn't appear to be to bad but will need to paint also
A few more pics of cam too

your cam looks workable, but is damaged from what I can tell.

iaokie · Post by **iaokie** » Sun Jul 03, 2011 8:28 pm

Took a few more pics after I cleaned the dirt off
Nothing is cracked but I can see where it is worn some what flat in one area
and a small piece is gone from the edge

damagi · Post by **damagi** » Sun Jul 03, 2011 8:49 pm

iaokie wrote:Took a few more pics after I cleaned the dirt off
Nothing is cracked but I can see where it is worn some what flat in one area
and a small piece is gone from the edge

The problem is that missing chip on the side, which could easily cause the follower to bind/buck/shatter. Since the follower is hooked up to a bearing on the sheeve, if the bearing goes bad then it puts a huge ammount of stress on the plastic cam.

As I said, you might be able to get by, but its unclear for how long without a fix or replacement. You might be able to fix it by putting some very thin material around the inside/outside (perhaps aluminum from a beverage can) and then filling in the chipped part.

iaokie · Post by **iaokie** » Sun Jul 03, 2011 9:10 pm

Ok I'll keep looking for a replacement and maybe I can find one by the time I get everything checked,cleaned and painted
What would the good price be on this cam if I can find one ?

wlhayesmfs · Post by **wlhayesmfs** » Sun Jul 03, 2011 9:14 pm

I watched one on Ebay a while back and when it went over $30 I quit and I think it went for somewhere in the $50's I was going to keep it as a spare if I needed it later. Have not seen very many and they are far between. I do know someone had one made from metal but I don't think it is offered as product for sale anywhere.