Is this any good? (diff pin and planet wheels) - Updated with More Pic's
Turbo Mini Forums

Ive just busted my first competition diff pin, so i'm pricing up to fix it... I know I really need a 4-pin but money is to tight to run get one atm.. so its going to have to be another competition pin again :(

but upon looking on the MS site i found this:
http://www.minispares.com/Product.aspx?pid=35923

Anyone have any experience of it? It any good, etc?

Edited by Anton on 31st May, 2007.

anton , any chance of a pic of the broken pin ,? what were you doing when it broke ?
thanks robert

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

pic from the outside..

http://www.minifinity.com/modules/v4bJourn...on/DSC00359.jpg

ooh - that hurts

what diff ratio are you running anton?

JK

If Carling made Mini engines
it would probably be like this one!

3.1 atm.... Im tempted 2 up that 2 a 3.44 tho...

EYE CHI WOWAH!!!
that is worrying !!!
i presume it span the pin and bent the roll pin and then popped out wilst rolling ,eeek
commiserations anton ,
er i hate to ask ,but ,,,,what power is it at ??
thanks
robert

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

i have that kit on at the minute cant say any faults to it to be honest, very nicely machined million times better than the standard items

dont know what its like under loads of power i am still running in / at 4 psi but corners nicer than the pos i removed from 998 lump no 'slop' in the output shafts at all (cant describe what i mean very well)

Yes i moved to the darkside

Instagram @jdm_brett

I'm thinking along the same lines as Robert,

the planet has welded itself to the pin and spun it taking out the locating pin, the pin has then worked its way out....bang!

at £50 for that kit, i'd be thinking I may as well go the extra and get a 4 pin, plus it appears the kits not in stock anyway...

If you do go for the kit i'm sure it will be considerably better than the std setup, but 1 thing i'd probably do is replace the locating pin with somthing solid, perhaps tap the diff cage and put a countersunk caphead in? should make it much harder for the pin to spin then.

Anton - I really don't want to see you doing that again! - pm sent ref 4 pin and 3.44 cwp

John

If Carling made Mini engines
it would probably be like this one!

ant definately get a 4 pin dude, sell your sister if you have to...i'm sure Nic would buy her, lol.

i've got a spare A+ case here if that other one of yours turns out to be an A.

I'm using the bushed planet wheels in my NA 1275 at the moment. I've done a couple of thousand miles on it.

The main problem I had was the diff was very tight on assembly with all the new parts.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Anton ..... unlucky mate .... never had one take the case out though even though I've snapped a few pins!!

Thinking of the time and expense of fixing that I'm sure a 4pin diff would have worked out cheaper!!!

Anton .... is that on your naturally asperated motor (sub 100 bannanas isn't it???) ...... just to frighten robert!!!

Every day is a school day ...........

How fast and how expensive ...... the same question...

Edited by robert on 27th May, 2007.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

yeah was rollered just bellow 100 a few weeks back with a cracked exhaust manifold... so i'd expect it to be running just on 100 now.

i feel sick

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

ay.. i know the feeling... when it happend and checked i had not hit anything inthe road.. and it dawned on me what i had just done... sick was a pretty acurate description

those bushed kits a so far superior to the std ones its untrue, lets not get it confused its no substitute for a x-pin. Second best would be a std diff made up from numerous older diffs, pick the best of the planet gears (start with 998 mini boxes if you can) to reduce slop on a new pin, the slop is where the bloody things wear.

If im completely honest if i had a std diff (i did for a while in my first motor) i'd leave off the beans in the corners and when pulling away (particularly when pulling out of a junction, weve all been there), its the only real way of making the single pin items last.

Edited by andeh on 28th May, 2007.

I've seen the future and tbh its Pie

Rob ..... I broke a comp pin with a 90 BHP 1275 a few years ago .... ok it was on A008r tyres (in a softer than normal compound) and it was on a really hard drive across the cotswolds ... but it did brake!

Hence why a 4 pin is my min requirement if I'm building a new motor ...

Every day is a school day ...........

How fast and how expensive ...... the same question...

Engine is out and striped.. Thanks to bud666 for pitching up and giving me a hand.

Seems the roll pin has disappeared and let the diff pin come out... the actual diff pin isnt in that bad condition tbo.. will get a pic of that tomorrow.

also looks like the rest of the engine is in good condition and is exactly like i would expect from the miles its done (around 10k for the box, 3kish for the engine)

latest pic of the casing...

Nice ......

That case looks perfect for what I want ...

Glad there is no damage to the expensive bits!!!

Every day is a school day ...........

How fast and how expensive ...... the same question...

thats a familar site, but the roll pins are the weak point, the only option realey is a 4 pin diff unless you want to shag another gear casing.

the diff pin set up is to marginal for high torque motors realey

always looking for them bigger bunches of bannanas

i was expecting carnage inside the box but it all looks fine ish, even the diff pin is hardly marked, no sign of the roll pin though.

luckily the rest of the engines fine though, took the pump apart and its as fresh as the day it went in.

jb weld

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

Might be of interest to those using std diff pin [assuming this mod will fit in a mini ]
On my Trials diffs [not allowed to use any form of lim. slip diff] where a x-pin diff is not available , i fit a thin tin plate ,eg 20swg , over each end of the diff pin , this is secured with 2off m4/m5 cap heads , or if clearance issues can use countersunk machine screws , tapped and locktited into diff casing either side of the diff pin .
If the planet gears weld onto the diff pin and shear the locating roll pin the diff pin can turn for hours and not wear through the retaining tin plates , Diff pin can't drop out !
Saves a lot of expensive damage .
Hope all the above waffle makes sense?
Carl