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-   -   Vintage CAT overview? Rebuilding advice needed. (http://www.oople.com/forums/showthread.php?t=162997)

joolstacho 02-03-2015 02:19 AM

Alright... 6 then.
:-)

OptimaFan 12-03-2015 01:06 PM

What is the stock length for the front shock springs?

And once shocks are cleaned, and you work the piston manually, should you feel quite some drag from the o-rings, or barely any? I have one pair of shocks that feels very light, and the other is smooth but heavier. No binding of piston and inside of shock body, just purely the metal rod moving through the sealing rings. And or 2 hole pistons up front, rear, etc? The manual does list recommended pistons, but are these to be observed, or are other combos better?

Peakey 14-03-2015 10:06 AM

There's some screws here if you need some

http://m.ebay.co.uk/itm/201307568619

OptimaFan 14-03-2015 11:48 AM

I have some spare screws by now, but the spings on the car I got from you seem way too long for the front, and on the other car, the front springs are very short. Making me wonder what the correct length is.

The stiffness on the seals on one pair of shock has been solved, that was due to everything running dry. After I put a few drops of silicone oil on the piston rod, it was pretty smooth. Still looking for recommendations for what piston to use, 1 hole, or 2, and what oil weight. I mostly run my cars on paved surface, or packed dirt, maybe some short grass.

Peakey 14-03-2015 11:54 AM

I don't think ive got any kit front springs but I'll see what I can dig up. Chances are someone's put some rears on the front to raise the ride hight.

OptimaFan 14-03-2015 11:59 AM

Quote:

Originally Posted by Peakey (Post 904193)
I don't think ive got any kit front springs but I'll see what I can dig up. Chances are someone's put some rears on the front to raise the ride hight.


That would be nice. The long springs are so tight, it doesn't need a preload collar at all. In fact, the shocks are very stiff this way, with little or no bump absorbing abilities. The short springs from the other car need over 2 cm of collars to get any preload.

OptimaFan 27-03-2015 10:52 PM

Still looking for input on the length of the XLS springs, especially the front ones.

Danf1275 28-03-2015 03:32 PM

I assume my XLS is stock, although can't be 100% sure,

Front springs - 39mm
Rear springs - 75mm

Cheers,

Dan

OptimaFan 29-03-2015 07:08 PM

Quote:

Originally Posted by Danf1275 (Post 906033)
I assume my XLS is stock, although can't be 100% sure,

Front springs - 39mm
Rear springs - 75mm

Cheers,

Dan


Thanks, Dan. Can someone confirm this, as there is still some margin for error, so it seems?

Peakey 31-03-2015 03:52 PM

38mm and that's from some nip ones from an XLS kit

OptimaFan 31-03-2015 09:38 PM

I have a couple of 38 mm springs, so I'm covered for one car, time to hunt for a second pair. For the rear I wonder if the 75 mm is right. There is only room for 65 mm between the top of the shock, and the collar that the spring sits against on the bottom.

OptimaFan 10-07-2015 08:18 PM

Took a while off from building cars, personal reasons, and later took up rc flying again. But I am back working on the XLS, and have another few questions.

1) what "eyelets" should be on the shocks? I've seen snap-on ones, like are also used on the steering rods, white ones that look like RC10, and black ones that are very thin, but look different than the ones shown on the manual

2) what tie rods should be used to be "area correct"?

Danf1275 11-07-2015 07:34 AM

XLS shocks should be fitted with black rosejoints, same as Procat. Earlier models had simpler eyelets with no ball at all, simply running on screw shank

My XL and XLS are fitted with black passivated turnbuckles, si I assume these are period correct.

Are your rear shocks fitted with limiters? As standard, there is a lot of droop.

OptimaFan 11-07-2015 09:50 AM

Can you post a picture of those black eyelets? There are different shapes and sizes, and I get the impression that on my Cats, some parts have been swapped out over the years, before they ended up with me. A few of the shocks I have came with "snap on" connectors, just like as are used on the tie rods and stabilizer.

Same as for turnbuckles, on one car these are simply threaded ends, on the front stabilizer, steering rods, and tie rods that set rear toe in.


Limiters outside the shock, or inside? I haven't opened all yet, but some have tubing on the outside, limiting throw.

OptimaFan 18-07-2015 10:02 AM

Bump...


The XLS manual shows the following "eyelets": T091 Rod End - short

These are the ones that use no balls, just resting on the screws, right?


Rose joints I can only find in the Pro Cat manual: T238/239 rose joint

I have a few of these, but less than 4. As these aren't listed in the XLS manual, could it be these were phased into later released XLS kits?


But I also saw T100 Ball Socket being used.

As I was hoping to make the shelf car look like Masami's Cat, which of these options would be the closest match with the original?

Peakey 27-07-2015 11:38 PM

Hi henk, sorry for the delay pal but I found my pack of O rings
http://i1345.photobucket.com/albums/...psf9td8etm.jpg

and as for Masamis CAT here it is
http://i1345.photobucket.com/albums/...psgvfjs34j.jpg
http://i1345.photobucket.com/albums/...pss4fjegkl.jpg
http://i1345.photobucket.com/albums/...psik2tfkfm.jpg

But you can't see any of the shock bottoms ��

Retro RC 28-07-2015 01:13 AM

Have a look at this Henk shows what's used on the dos and the part numbers

http://www.oople.com/rc/manuals/xls/...ges/xls17.html

Retro RC 28-07-2015 01:17 AM

Quote:

Originally Posted by Peakey (Post 920308)
Hi henk, sorry for the delay pal but I found my pack of O rings
http://i1345.photobucket.com/albums/...psf9td8etm.jpg

and as for Masamis CAT here it is
http://i1345.photobucket.com/albums/...psgvfjs34j.jpg
http://i1345.photobucket.com/albums/...pss4fjegkl.jpg
http://i1345.photobucket.com/albums/...psik2tfkfm.jpg

But you can't see any of the shock bottoms ��

Damn Peakey where did you find those pics

Peakey 28-07-2015 05:01 AM

I got them off Danb4, from when he built his replica. That is where it lives in the office of Harvey Kempton at Schumacher.

OptimaFan 28-07-2015 04:31 PM

I think Dan showed these earlier too, but not sure, so thanks. Still hard to see what "eyelets" are used, as the bumper or body is obscuring things. I can see a part of the rear shock eyelet, and it's clearly not the "snap-on" type, like is used on the stabilizer. But whether a rosejoint, or eyelet without pillow ball, I can't tell.


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