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Got more bits. Took one unassembled diff from my cougar 1/2 ? along to a belt shops. The one on the left came with the car and has 102072 x 8 written on it. The new one on the right has GATES (R) B72MXL 171J on it.



Looking at their profile the new one is more squared but shorter tooth height. It did feel a good fit though, strangely better than the original. Fingers crossed it will work well.

more goodies...



time to get sanding and CA'ing.

Mmmm, carbon. I have to admit that i never CA my carbon parts, and i've never had any issue.

CAT3K wrote:Mmmm, carbon. I have to admit that i never CA my carbon parts, and i've never had any issue.

I've seen some edges where I've drilled & sawed/Dremeled chipping slightly. Those areas could have the outermost layer lifted a bit so it's definitely possible to have issues. Not an issue for a shelf-queen but if you're running it, you don't want to be saying "Why didn't I do it?" after-the-fact; then it's too late.

I color the cut edges black with a Sharpie before CA'ing the edges, it looks better with nice, glossy black edges.

Coelacanth wrote:I've seen some edges where I've drilled & sawed/Dremeled chipping slightly. Those areas could have the outermost layer lifted a bit so it's definitely possible to have issues. Not an issue for a shelf-queen but if you're running it, you don't want to be saying "Why didn't I do it?" after-the-fact; then it's too late.

I color the cut edges black with a Sharpie before CA'ing the edges, it looks better with nice, glossy black edges.

I know some do it religiously when they get a new car, but i've been racing for years and never had a race car delaminate. And it's not like i don't crash I suppose i've had a chip or two over the years though.

I one received a car from ebay that had a delaminated chassis, but that was neglect i think (stored wet)

Paul.

Coelacanth wrote:I color the cut edges black with a Sharpie before CA'ing the edges, it looks better with nice, glossy black edges.

Just re-read this, do you have a pic of how this looks? It sounds like a cool idea with black glossy edges.

CAT3K wrote:

Coelacanth wrote:I color the cut edges black with a Sharpie before CA'ing the edges, it looks better with nice, glossy black edges.

Just re-read this, do you have a pic of how this looks? It sounds like a cool idea with black glossy edges.

No idea how well it would work, but could look even better with a contrast coloured edge - yellow or red perhaps?

CAT3K wrote:

Coelacanth wrote:I color the cut edges black with a Sharpie before CA'ing the edges, it looks better with nice, glossy black edges.

Just re-read this, do you have a pic of how this looks? It sounds like a cool idea with black glossy edges.

I'll take a pic this weekend and update this topic.

CAT3K wrote:

Coelacanth wrote:I color the cut edges black with a Sharpie before CA'ing the edges, it looks better with nice, glossy black edges.

Just re-read this, do you have a pic of how this looks? It sounds like a cool idea with black glossy edges.

Here are some pics of my fabricated carbon fiber shock towers, you can see them right behind the stock green anodized towers. The glossy black edges, IMO, give it a more finished look. To me, it looks much better than simply cut or even sanded edges. These edges were filed & sanded smooth with a slight roundness, then colored with black Sharpie, then CA glued.

That does look pretty cool

I wonder if it would be possible to do contrasting colours like Groomi mentioned. I might give it a test on some scrap carbon.

CAT3K wrote:That does look pretty cool

I wonder if it would be possible to do contrasting colours like Groomi mentioned. I might give it a test on some scrap carbon.

Make sure you post some pics - I don't have any scrap carbon laying around to play with.

Well i gave it a try, i'm not sure if do this colour again, but as a concept it works ok. Maybe red would look better?

It's tough to get it even and neat though, more practice would be needed, unless i do black.



Paul.

CAT3K wrote:Well i gave it a try, i'm not sure if do this colour again, but as a concept it works ok. Maybe red would look better?

It's tough to get it even and neat though, more practice would be needed, unless i do black.



Paul.

That looks quite good. Has it been CA'd or not? I wonder if one of those paint pens would work as single applicationi job. Not sure if the solvent inside will delaminate the fibers though.

CAT3K wrote:Well i gave it a try, i'm not sure if do this colour again, but as a concept it works ok. Maybe red would look better?

It's tough to get it even and neat though, more practice would be needed, unless i do black.



Paul.

I've done red edges on my yok" hotdog long ago, but never CA'ed them. Every time I handled the chassis afterwards, I had red lines on my hands

By the way: that was a black GF10 chassis, not carbon. Carbon has black edges and the GF10 white ones; much more receptive for coloring

zoomzoombang wrote:That looks quite good. Has it been CA'd or not? I wonder if one of those paint pens would work as single applicationi job. Not sure if the solvent inside will delaminate the fibers though.

I should have mentioned what i'd done. I was struggling to find a colour, so ended up borrowing one of my daughters gel pens. They're more like a paint pen with a fine point. This colour was lilac/purple. I CA'd over the top of it.

I thought about the long term suitablility too, i don't know if it would eventually damage the carbon?

Paul.