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Hi.

This is an old chestnut I know but I still havent found a remedy.

Old Scalextric guides: black with push in post - the wires fit down into holes against the braids with metal eyelets.

I am using 30AWG (could this be too thin?) wires and am very careful to allow maximum rotational flexibility of the guide pin in the chassis hole. I have even tried lubricating the guides with Inox. There is no damage or wear to the chassis.

However blades sometimes still do not self-centre properly leading to the guide crashing onto the lane changer centre point.

I am using both old and new guides.

1) How can I rectify this please?

2) Failing this, is there any guide suitable replacement?

Thanks. This will be a another big hurdle overcome on my Old Porsche (C125 type) project.

Keith.
 

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Circuit Owner
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This is a major PITA with these old cars - big so much the guide as the way the wires are routed.

For chassis where the guides pass through the chassis from the side (through keyhole slots) the problem is when the guide rotates fully it can pull the guide wires further through and the they bind and push the guide off-centre. If you have enough clearance you could try a little pigtail curl of the guide wire between where it exits the chassis and the guide itself. Its fiddly but it stops extreme guide rotation putting strain on the guide wires and pulling them out of shape. Or you could try enlarging the wire slots as much as you dare without compromising chassis strength.

I believe some early lane changers had a weird entry point and surgery is possible - there is a thread somewhere on SlotForum that shows the modification.

I give up on the side entry guide wires and cut a half circle in front of the guide for a more conventional arrangement but this obviously means fabricating supports for the chassis BEFORE cutting the half circle (otherwise ether chassis falls into two parts!!!) This is major surgery and I understand why you would avoid that given the size of your fleet.
 

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Discussion Starter · #3 ·
Mr M.

Thanks for giving me a different perspective from where I can now try and continue these cars improvements.

It seems like I have been fiddling with fore-mentioned pigtails forever. Similarly, I have often tried blocking the ends of the slots so the wires cannot escape.

I have never considered the idea of providing slots for the wires so the latter could drop perpendicular to the chassis though; it makes perfect sense. I have seven of these Porsches up and running well with head and tail lights now, but I am not adverse to stripping them all down and modifying, if it will help to improve things.

Anyway, I will begin car eight by drilling two wires holes as marked on the chassis in the photo below. This is exactly where the wires should go. The holes may need to be enlarged later, as you suggest, to form the crescent you mentioned. I will take due care as outlined!

Yes, two of my double lane changers differ from the third. I had not noticed this before. I do experience the same problem from time to time with both variations though. If anyone could direct me to the about the modification you mention it would be interesting reading.

I am still open to suggestions with respect to tearing these guides out completely and reassembling using independently manufactured components if such an operation has proved effective.

Cheers.

K
 

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Premium Member
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Have you considered Amato 3DP replacement chassis ??
 

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Is it possible that the guides were designed and manufactured before the advent of digital lane changers?
 

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Discussion Starter · #7 ·
Thanks everyone.

I will def. check out the chassis Greg. I have never heard of / seen them.

Yes Mike, it is as Matthew says. Actually they almost came out before the advent of the wheel ...

I don't know why I am obsessed with these old cars, but infuriating as they can be, they are so much more fun to fiddle with than my Porsche GT1s and GT3Rs... and they don't have all those silly bits to break off.
 

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Circuit Owner
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A nicely sorted Johnson motor is a load of fun with a nicely sorted vintage whale tail Porsche. Power slide heaven.
 

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I like older Scalextric cars too, particularly the Rover, Porsche, BMW CSL, original Escort mkI and Shadow. They are fun without spending loads of cash on parts and they look ok.

I don't like the TR7 though, I have 2 but I just think they are over scale and not as good looking as the others.
 

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A friend of mine improved the handling of the car by moving the guide forward 5 or 10mm by drilling a new hole closer to the front of the chassis, and reinforcing it with a suitable diameter tube. This allowed him to cut a full curved slot in front of that to let the wires swivel freely. I am thinking of trying that myself, but gluing in one of the old rectangular guide mounts to provide a more solid and stronger mount.

I'll post some pics when I get around to trying it myself,
 

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Discussion Starter · #11 ·
A friend of mine improved the handling of the car by moving the guide forward 5 or 10mm by drilling a new hole closer to the front of the chassis, and reinforcing it with a suitable diameter tube. This allowed him to cut a full curved slot in front of that to let the wires swivel freely. I am thinking of trying that myself, but gluing in one of the old rectangular guide mounts to provide a more solid and stronger mount.

I'll post some pics when I get around to trying it myself,
I look forward to checking out your progress Graeme. Thanks.
 
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