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Home > Technical Chat > Srtaight Cut drops V Standard Helical ?

Mr Joshua

2299 Posts
Member #: 1954
Post Whore

Luton Bedfordshire

Greater bearing surface with the needle rolllers.

Own the day


akirch

336 Posts
Member #: 399
Senior Member

Austria

For your interest:







Did a spy on harry's latest method of resolution yesterday... :)

Regards,
Andreas

http://www.minifreunde.at


Vegard

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7749 Posts
Member #: 74
I pick holes in everything..

Chief ancient post excavator

Norway

Absolutely brilliant! Great!!

On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem.



John

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9973 Posts
Member #: 1456
Topping Geezer

Barnsley, South Flatcapshire

Am I right in saying this is an oil fed bearing with a small hole in the idler to feed the transfer housing side? If so this looks very good.

If something is worth doing, it's worth doing half of.


akirch

336 Posts
Member #: 399
Senior Member

Austria

You are right.

http://www.minifreunde.at


John

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9973 Posts
Member #: 1456
Topping Geezer

Barnsley, South Flatcapshire

fancy selling a conversion kit? *happy*

If something is worth doing, it's worth doing half of.


apbellamy

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16534 Posts
Member #: 4241
King Gaycharger, butt plug dealer, Sheldon Cooper and a BAC but generally a niceish fella if you dont mind a northerner

Rotherham, South Yorkshire

I'd have that in a high performace (200+ bananas) engine

On 11th Feb, 2015 robert said:
i tried putting soap on it , and heating it to brown , then slathered my new lube on it

*hehe!*


Rod S

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5846 Posts
Member #: 2024
Formally Retired

Rural Suffolk

If it is a hole through the thrust face(s) of the gear, so only one side needs pressure feeding...... very clever !!!

What are the screwed in place thrust washers (I assume the one in the transfer housing is the same) .... is it bronze or something else ???

Schrödinger's cat - so which one am I ???


Brett

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9449 Posts
Member #: 1023
Post Whore

Doncaster, South Yorkshire

very very clever!!

My B18VtecTurbo Awd Mini 2 years in, been running for 2years +.... vtec just kicked in yo
Instagram @jdm_brett

On 14th Feb, 2014 robert said:
I think he thought his car was 465kg ,and you then guessed it at 565kg , and stuff me !! you were right


TurboHarry

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263 Posts
Member #: 115
Senior Member

Austria, near Vienna

Yes, only one side is pressure fed - oil comes through the idler to the other side where the another bronze washer is screwed to the transfer housing....

In my last try I let the bronze washer rotate - there I only cared about the gearbox side...now the transfer side was also worn a little bit, so I decided to this setup now:

here is my old setup - if interested:
http://www.minifreunde.at/harry/links/oilpressure.htm

Bimmer Twinky headed and turboed A-Series:
http://www.minifreunde.at/harry/projects.htm


Sprocket

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11043 Posts
Member #: 965
Post Whore

Preston On The Brook

Harry, I remember the original idler mod and was intrigued. True wizard!!

How did you get on with the idler bearings packed with the rollers? I like the idea but it has been suggested that the rollers next to each other would cause them to slide rather than roll.

If yours have held up with 200hp+ then Im doing it :) Most they would ever see in my engine is 6000miles

On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be...
So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'...


On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........


TurboHarry

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263 Posts
Member #: 115
Senior Member

Austria, near Vienna

Hi Sprocket,

never heard about the "sliding" thing- I am using this mod already for 3 years @ 200hp+ now with no problems.

@axial needle roller idea: I was thinking about the same a few years ago - what was keeping me away was the problem of finding the right clearance - if too much there would be a shock load on the bearing each acc pedal load change....that' why I moved to the oil pressure supported journal bearing....

Bimmer Twinky headed and turboed A-Series:
http://www.minifreunde.at/harry/projects.htm


Sprocket

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11043 Posts
Member #: 965
Post Whore

Preston On The Brook




On 30th Dec, 2009 TurboHarry said:
Hi Sprocket,

never heard about the "sliding" thing- I am using this mod already for 3 years @ 200hp+ now with no problems.



Cool :) that is the final piece that has made the decision*happy*

On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be...
So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'...


On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........


minimole23

4185 Posts
Member #: 1321
Post Whore

Bristol

When I build my turbo engine, I feel this idea may require plagerising!

On 7th Oct, 2010 5haneJ said:
yeah I gave it all a good prodding


John

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9973 Posts
Member #: 1456
Topping Geezer

Barnsley, South Flatcapshire

Helical box or SC?

If something is worth doing, it's worth doing half of.


Joe C

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12166 Posts
Member #: 565
Carlos Fandango

Burnham-on-Crouch, Essex

so is there a matching bronze bush in the transfer side? or is that still just running on the alluminium?

On 28th Aug, 2011 Kean said:
At the risk of being sigged...

Joe, do you have a photo of your tool?



http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1

https://joe1977.imgbb.com/



TurboHarry

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263 Posts
Member #: 115
Senior Member

Austria, near Vienna

yes, matching bush on the other side...looks exactly the same as on the gbox side....

box is SC - only transfer gears are helical because of noise...in Austria you have big trouble with police when your car is too noisy....

Bimmer Twinky headed and turboed A-Series:
http://www.minifreunde.at/harry/projects.htm


John

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9973 Posts
Member #: 1456
Topping Geezer

Barnsley, South Flatcapshire

This is just what I am looking for.

Any change of a detailed conversion guide for us plebs?

If something is worth doing, it's worth doing half of.


fastcarl

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6951 Posts
Member #: 507
Fastest A Series Mini in the World

leeds/wakefield.

Very ingenius Harry,
i'm off to photoshop a thread so i can claim to have thought of it first ,lol

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE


TurboHarry

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263 Posts
Member #: 115
Senior Member

Austria, near Vienna

MMMM, I have a few photos of this conversion which should pop up on our Austrian homepage soon.....

Bimmer Twinky headed and turboed A-Series:
http://www.minifreunde.at/harry/projects.htm


Joe C

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12166 Posts
Member #: 565
Carlos Fandango

Burnham-on-Crouch, Essex

*hehe!*


On 30th Dec, 2009 fastcarl said:
Very ingenius Harry,
i'm off to photoshop a thread so i can claim to have thought of it first ,lol

On 28th Aug, 2011 Kean said:
At the risk of being sigged...

Joe, do you have a photo of your tool?



http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1

https://joe1977.imgbb.com/



Sprocket

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11043 Posts
Member #: 965
Post Whore

Preston On The Brook

Patent Pending lol

On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be...
So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'...


On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........


TurboHarry

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263 Posts
Member #: 115
Senior Member

Austria, near Vienna

Just found an old info on our Austrian homepage -I am doing this full filled idler bearing and bronze stuff since 2005 - I hope this gives you a better feeling Sprocket..*smiley*

http://www.8ung.at/pmf/updates2005/0210_zw...ad/wahnsinn.htm

Bimmer Twinky headed and turboed A-Series:
http://www.minifreunde.at/harry/projects.htm


hydrolastic

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60 Posts
Member #: 6668
Advanced Member

Hello Guys, Impressive stuff this is, But... regarding Paul's original question. Here is my opinion why it failed. "machining tolerances" if you carefully measure a trans case and or flywheel housing you will see that the centerlines and concentric bushings vary wildly from case to case. causing a misalignment. One measurement i do is to remove the idler bearings and bolt the flywheel housing and trans together turn a shaft down to get a slide fit in the trans bore within .001 then slide it over to the flywheel housing bore you will see some will fit and others won't. one i had was over .015 out. not surprisingly the first motion gear had cracked teeth but had not broken off yet. and this was an 1100 three syncro combo someone had fitted a later vented housing to it. To test this take a diff side cover and chuck it into the lathe like you are fitting a cooper s bushing. you will see they all are at least .005 out and if you check other bores and clearances you will see the whole case is like this. so if you are running serious Hp and want it to last check your centerlines. Aaron

Racecar spelled backwards is Racecar


Sprocket

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11043 Posts
Member #: 965
Post Whore

Preston On The Brook

Inspird by Turbo Harry, here is my take on the pressure fed idler thrusts





On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be...
So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'...


On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........

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