10 replies to this topic

[warning634]

Hi guys

I have this type of gearbox fitted to my rally mini. I'm having issues with it engaging gears without it crunching! The clutch is adjusted properly and the dog rings are in good condition, what could be causing this to happen? And what can I do to stop it:(

[MIGLIACARS]

all the time or just when warm

[MIGLIACARS]

is it a fresh build or have u just put it together

 

 

how bad a crush as they are noisey boxes anyway

[warning634]

Hey migliacars

As I have never driven with a dogbox, I was unsure if it was normal or not.

So to answer your questions:-

I would say all the time, but can't really hear it when I have my helmet on, but when driving between stages, it was doing it mainly in 2nd. If I took my time it would do it less, and hardly at all in 1st and 3rd.

No the gearbox has been built and used for a number of years, but as you can see from the pics it's looks in very good condition.

I just don't wont to be causing damage to it, but since I have never driving it before I don't know if it's meant to do it.

What I can do is video it so u can hear it, and give me your opinion.

Cheers

Kevin

[MIGLIACARS]

I used used involute gearboxes for years and they are noisey and crunchy as there nature is dog on dog metal on metal

[warning634]

Cool, so I could be worrying over nothing then.

We'll I will record it just incase ;)

I guess spares for jacknight boxes are quite hard to get hold of now?

Cheers

Kevin

[Guess-Works.com]

next to impossible...

 

Only way to find spares is to buy another second hand box and hope it hasn't got the same broken bits that you have.

Edited by Guess-Works.com, 12 October 2014 - 06:20 PM.

[MIGLIACARS]

green and white mini spares still use jkd i think or did a few years ago.

 

 

they always had spares for mine     or did a few years ago.

 

 

I use med  box now after a awful time with mbe pasterceen box.

 

so far Ive got to say that med s latest box is so sweat and smooth compared to the others,    well that is so far

[Hinnocenti]

Hello,

I have a JKD 5 speed dog box, but I have not used it yet. However, the gearbox do not have the reverse gear. Any idea where I can get it?.

Thank you,

Hugo

[nicklouse]

Hello,

I have a JKD 5 speed dog box, but I have not used it yet. However, the gearbox do not have the reverse gear. Any idea where I can get it?.

Thank you,

Hugo

Talk to John at Guessworks.

[Hinnocenti]

Hey Nick, thank you!

I will contact him. I hope he can help.

Thanks again,

Hugo