Lazer zxr

[alcyon]

Originally Posted by alcyon

I want to buy ceramic balls for my diff from acer racing, anyone knows the diff ball size for Lazer/Optima/Ultima ?

anybody?

[oosh123]

Originally Posted by alcyon

anybody?

Sorry, I don't own a set of ball diffs for the Lazer. I wish I did.

But I do believe they are 1/8"

[oosh123]

This may be more difficult than I expected. It is easy to design the layshaft. But in order to use the hubs or plates on both size of the spur, we might need new hubs, as the current hub on the lazer zx connects directly to the first pulley.

[Welshy40]

Originally Posted by oosh123

Welshy, are you able to get your to get your gear supplier to make a 48p-100t spur gear to use with the Lazer ZX-5 or RB5?

If you can, I can take care of the rest of the layshaft. You also need to tell me how you want it with your rear gear box.

Yes they will make anything you want but dont quite understand the reason why zx5 or RB5.

[Welshy40]

Originally Posted by alcyon

anybody?

Unsure but am hoping that the guys from rclazy will be at area51 in silverstone this weekend as i will give them the balls so they can list them on their web site. If not i will post next week to them and update all when i know.

[Welshy40]

Originally Posted by oosh123

This may be more difficult than I expected. It is easy to design the layshaft. But in order to use the hubs or plates on both size of the spur, we might need new hubs, as the current hub on the lazer zx connects directly to the first pulley.

Mate your thinking too much, its easier when you put the associated plates into the design. The spur i designed and is being sold now will fit perfectly with those plates so we need to account for a longer spring to be fitted and an attachment that can be designed to fit behind the plate on the flat bit of the layshaft like the plate so the pulley in the box can be turned. Otherwise just adding 2mm to the mk1 shaft and also lengthening the screw end by several mm to fit the associated spring and if possible thrust race then just as good.

[Welshy40]

Ive got to thank rondoola for his help in saving the day for me and has a couple of Tough racing belts that he can get to me before friday so now I can race my ZXR on Sunday.

Next phase is the rear gearbox design to tension the rear belt so we can stop this happening. Then when done all that is needed is developing the layshaft and slipper system which sounds a big job but in reality is most probably very easy.

[alcyon]

i just opened up my front diff and measured the ball size, its exactly 3mm. I also need help regarding kyosho ball diffs. i heard in 1992 kyosho upgraded their ball diff design using seperate diff rings that can be flipped, but still using the same diff outdrives. in order to use these new diff rings, a special spacer was needed to hold the rings. anyone know the part number of these spacers and the rings? Are the rings WBD-4? In the ZX-r Manual, if i am not mistaken, the spacers are marked 59. What is the part number for me to get these spacers? Please do correct me if i am wrong. Lastly look at my Optima MId ball diff pictured here, this is the old diff rings right ?

Also i got a suggestion regarding the Lazer shaft with longer spring. After you make the shaft longer with the spring sticking out, how are you going to cover the nut and the longer shaft? I solved this problem with my B4 optima mid slipper, by reaming a hole on the center of my gear cover, then using a chinese medicine bottle, used a hot knife to split it to the length i want, then insert it into the gear cover, placed some silicon to seal it, then superglued it. The result is a B4 type gear cover, with a tight fitting cap that can be removed to adjust the slipper tension, very useful at the track !

[oosh123]

Originally Posted by Welshy40

Mate your thinking too much, its easier when you put the associated plates into the design. The spur i designed and is being sold now will fit perfectly with those plates so we need to account for a longer spring to be fitted and an attachment that can be designed to fit behind the plate on the flat bit of the layshaft like the plate so the pulley in the box can be turned. Otherwise just adding 2mm to the mk1 shaft and also lengthening the screw end by several mm to fit the associated spring and if possible thrust race then just as good.

Maybe I am working off of a Lazer ZX. But if you look at the following pictures:





Circled in red is the plate that I am concern about. On the Lazer, the part that is circled in red have a particilar spline that attaches to the pulley that I have yet to find out what is it. On the B4, we are missing the spline. Currently, the only easy way is to increase the diameter of the thrust plate on the Lazer to the same size as the B4 (which I have said in a few earlier post) and glue the thrust plates to the hub. It is possible to create a plate like the B4 and have the connecting part to the pulley, but it would cost an arm and a leg. If for some reason, we are thinking about using the locking mechanism from the B4 plate to turn the layshaft, then there will be no need for the one-way bearings in the original Lazer hubs.

All of the things I am talking about is about the Lazer ZX only, I am not sure the difference about the other Lazers.

Please correct me if I am wrong, I am still kinda confused. =)

[isobarik]

Originally Posted by alcyon

i just opened up my front diff and measured the ball size, its exactly 3mm. I also need help regarding kyosho ball diffs. i heard in 1992 kyosho upgraded their ball diff design using seperate diff rings that can be flipped, but still using the same diff outdrives. in order to use these new diff rings, a special spacer was needed to hold the rings. anyone know the part number of these spacers and the rings? Are the rings WBD-4? In the ZX-r Manual, if i am not mistaken, the spacers are marked 59. What is the part number for me to get these spacers? Please do correct me if i am wrong. Lastly look at my Optima MId ball diff pictured here, this is the old diff rings right ?

Also i got a suggestion regarding the Lazer shaft with longer spring. After you make the shaft longer with the spring sticking out, how are you going to cover the nut and the longer shaft? I solved this problem with my B4 optima mid slipper, by reaming a hole on the center of my gear cover, then using a chinese medicine bottle, used a hot knife to split it to the length i want, then insert it into the gear cover, placed some silicon to seal it, then superglued it. The result is a B4 type gear cover, with a tight fitting cap that can be removed to adjust the slipper tension, very useful at the track !

yeah its possible to get those but they come in an set with new outdrives also

wbd-4 are the diff washers.

[isobarik]

Originally Posted by oosh123

Maybe I am working off of a Lazer ZX. But if you look at the following pictures:





Circled in red is the plate that I am concern about. On the Lazer, the part that is circled in red have a particilar spline that attaches to the pulley that I have yet to find out what is it. On the B4, we are missing the spline. Currently, the only easy way is to increase the diameter of the thrust plate on the Lazer to the same size as the B4 (which I have said in a few earlier post) and glue the thrust plates to the hub. It is possible to create a plate like the B4 and have the connecting part to the pulley, but it would cost an arm and a leg. If for some reason, we are thinking about using the locking mechanism from the B4 plate to turn the layshaft, then there will be no need for the one-way bearings in the original Lazer hubs.

All of the things I am talking about is about the Lazer ZX only, I am not sure the difference about the other Lazers.

Please correct me if I am wrong, I am still kinda confused. =)

looking good oosh

Maybe just cut of the innerplate and make the outer part of the shaft B4/rb5 look alike ...

On the hypercluth they have just macined it down so the slipper new slipper plate fits.

mvh isobarik

[oosh123]

Can anyone answer me why we need oneway bearings inside the hubs?

Isn't it the same as locking the pulleys to the layshaft?

[oosh123]

Anything worth getting with this sell?

http://www.ebay.com/itm/KYOSHO-LAZER...item1c22aed14b

[Welshy40]

Originally Posted by oosh123

Anything worth getting with this sell?

http://www.ebay.com/itm/KYOSHO-LAZER...item1c22aed14b

Front gearboxes and rear shock tower mounts would be worth buying.

[Welshy40]

Originally Posted by oosh123

Can anyone answer me why we need oneway bearings inside the hubs?

Isn't it the same as locking the pulleys to the layshaft?

The zx had a bearing slipper and the hub had a one way and was basically 60/40 so the reverse one way was born to make it 50/50. I think you need to base the slipper design on a zxr mk2 design as the hub sections in two parts and makes life simpler as we can make an adaptor to fit the b4 rear plate. Its an idea anyway.

[oosh123]

Originally Posted by Welshy40

The zx had a bearing slipper and the hub had a one way and was basically 60/40 so the reverse one way was born to make it 50/50. I think you need to base the slipper design on a zxr mk2 design as the hub sections in two parts and makes life simpler as we can make an adaptor to fit the b4 rear plate. Its an idea anyway.

Yeah!!! welshy! you solved my confusion!

I am working off of a Original Lazer ZX hubs.

I didn't know that the MKII hubs have 2 parts. Is there a part number for it so that I can do some reseach on it?

which manual is it on?

Is this the one you are talking about?

[alcyon]

Originally Posted by isobarik

yeah its possible to get those but they come in an set with new outdrives also

wbd-4 are the diff washers.

iso, what are the part numbers ?

[oli4ke]

Originally Posted by alcyon

iso, what are the part numbers ?

Rama, The only 2 Partnumbers of those "diff kits" with new outdrives are WBD-1 for the rear and WBD-5 for the front diff.
WBD-2 Is a ball set, WBD-3 is the diff casing and WBD-4 are the 2 pressure plates.

[Welshy40]

Originally Posted by oosh123

Yeah!!! welshy! you solved my confusion!

I am working off of a Original Lazer ZX hubs.

I didn't know that the MKII hubs have 2 parts. Is there a part number for it so that I can do some reseach on it?

which manual is it on?

Is this the one you are talking about?

Look up retromodelisme (i think thats correct) and find the zxranuals. One has the hyper clutch and if memory serves me correctly LAW12 is the part number but its for the whole unit. I just realised the hyper clutch is on the zxs so part numbers are on the manual on the japanese kyosho web site.

[Ema]

If a day I will be able to build my dream slipper I will start using a 3M 14 teeth HDT pulley bar in order to get rid of both LA11 and the front one way.
Then I will cut the bar at the desired lenght and machine both ends in order to fit the two large bearings.
I will drill a hole in the middle in order to fix the pulley section to the axle with a grub screw.
Obviously the axle that will go inside the pulley section has a end section to fit the B4 slipper .

Can you figure out the whole assembly without a cad drawing ?

Here's the link of the pullay bar
http://shop.polybelt.com/3M-14-Pulle...3M-14-100A.htm

Bye
Ema
P.S. In my dreams the pulley will also be hard anodyzed .