Author Topic: Kato GS-4 Traction Tire(s)  (Read 1003 times)

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Mike Madonna

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Kato GS-4 Traction Tire(s)
« on: August 06, 2018, 10:12:52 PM »
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Good evening all,

I was running a first run Kato GS (4449) at the N Scale weekend. It not only threw one, but both TTs. Surprisingly, it still ran and pulled it's train. I've read some of the remedies are: painting the driver groove, then mount TT, CA the TT to the driver and install the new GS/FEF TT. Looking for a workable, permanent fix. Thanks in advance!
Mike
SOUTHERN PACIFIC Coast Division 1953
Santa Margarita Sub

peteski

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Re: Kato GS-4 Traction Tire(s)
« Reply #1 on: August 06, 2018, 11:07:02 PM »
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Good evening all,

I was running a first run Kato GS (4449) at the N Scale weekend. It not only threw one, but both TTs. Surprisingly, it still ran and pulled it's train. I've read some of the remedies are: painting the driver groove, then mount TT, CA the TT to the driver and install the new GS/FEF TT. Looking for a workable, permanent fix. Thanks in advance!

I guess the permanent fix is not to work your loco so hard!  :D
But seriously, I don't think there is a permanent fix (unless like you said, you glue  the TT the driver).  But since you mentioned the original run, those tires did come off rather easily. I think the currently available TTs are a bit tighter or stiffer, so they stay in the groove better.
This loco, with large diameter drivers and with the mechanism which is actually designed to put lots of weight on the TT-equipped driver, will be prone to the TTs coming off when it slips under load or is mishandled. All it takes is some ham-fisted modeler to slide the loco back and forth on the track trying to re-rail it and the TT will come right off.
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seusscaboose

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Re: Kato GS-4 Traction Tire(s)
« Reply #2 on: August 07, 2018, 12:28:02 AM »
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Mike
Same thing happened to me
On both the gg1 and the gs4

If I recall
I just didn’t replace them

I know for a fact the g unit runs fine

I can’t 1000000% recall if the gs4 was ok

But I kinda recall it was

Probably not much help to ya here

Carry on

Eric


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Inspiration at:
http://nkphts.org/modelersnotebook

RBrodzinsky

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Re: Kato GS-4 Traction Tire(s)
« Reply #3 on: August 07, 2018, 12:33:30 AM »
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I used some dilute acrylic paint on the driver, then put the TT on. This was about 4 years ago, and have not had a problem since, and my GS4 gets run more than any of my other locos.
Rick Brodzinsky
Chief Engineer - JACALAR Railroad
Silicon Valley FreeMo-N

tlaswell

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Re: Kato GS-4 Traction Tire(s)
« Reply #4 on: August 07, 2018, 03:51:10 PM »
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I've heard of this stuff call Bullfrog Snot.  It is sold as a paint on Traction Tire.

peteski

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Re: Kato GS-4 Traction Tire(s)
« Reply #5 on: August 07, 2018, 04:05:00 PM »
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I've heard of this stuff call Bullfrog Snot.  It is sold as a paint on Traction Tire.

To steal someone else's GIF.


Not a fan of BFS.
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drbnc

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Re: Kato GS-4 Traction Tire(s)
« Reply #6 on: August 07, 2018, 06:13:54 PM »
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Thin it out a bunch with HOT water, and it works.  My BLI F3s and F7s pull like monsters now, just doing 2 wheels on one axle.

Mike Madonna

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Re: Kato GS-4 Traction Tire(s)
« Reply #7 on: August 07, 2018, 10:32:40 PM »
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Thanks for the speedy replies! Contemplating new TTs with the thinned paint method. The rest of my Kato GS roster are from the second run....
Mike
SOUTHERN PACIFIC Coast Division 1953
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Re: Kato GS-4 Traction Tire(s)
« Reply #8 on: August 08, 2018, 01:38:09 AM »
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The rest of my Kato GS roster are from the second run....

And do those throw the TTs as frequently as the one from the 1st run?
--- Peteski de Snarkski

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Paradise275

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Re: Kato GS-4 Traction Tire(s)
« Reply #9 on: August 08, 2018, 12:06:55 PM »
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drbnc, thin what out?

Rick

drbnc

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Re: Kato GS-4 Traction Tire(s)
« Reply #10 on: August 08, 2018, 02:41:13 PM »
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Bullfrog snot.  Make it really runny, almost full-on watery.

Paradise275

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Re: Kato GS-4 Traction Tire(s)
« Reply #11 on: August 08, 2018, 03:49:03 PM »
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Thanks

Mike Madonna

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Re: Kato GS-4 Traction Tire(s)
« Reply #12 on: August 08, 2018, 10:12:32 PM »
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And do those throw the TTs as frequently as the one from the 1st run?

A few years back, I ran the 4453 (second run) Kato GS on a friends home layout; Similar "Mail Train" as in Altoona, 2% grades and curves between 20 and 30" Radius. Ran loco for 30 minutes straight, no TT issues whatsoever....
Mike
SOUTHERN PACIFIC Coast Division 1953
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peteski

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Re: Kato GS-4 Traction Tire(s)
« Reply #13 on: August 08, 2018, 11:41:44 PM »
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A few years back, I ran the 4453 (second run) Kato GS on a friends home layout; Similar "Mail Train" as in Altoona, 2% grades and curves between 20 and 30" Radius. Ran loco for 30 minutes straight, no TT issues whatsoever....

That seems to be confirming that the TTs used in the subsequent runs of this loco are tighter/stiffer that the first run.
--- Peteski de Snarkski

-"Look at me, I'm satirical!!!"
-"Look at me, I'm anal retentive!!!"
-"Look at me, I have the most posts evahhhh!!!"
-"Look at me, I'm snarky!!!!"
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NorsemanJack

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Re: Kato GS-4 Traction Tire(s)
« Reply #14 on: August 09, 2018, 02:04:19 AM »
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That seems to be confirming that the TTs used in the subsequent runs of this loco are tighter/stiffer that the first run.

If this is true, wouldn't the correct solution just be to skip the snot and purchase and install the improved TT's from Kato?