Stripping a gearbox

[StuartA]

Hi all<br>
<br>
I'm currently getting an o/d gearbox ready to go in my Sprint. I've made up one good one from two. The problem I'm having is the flange has been torched through when originally removed and the retaining nut is stuck fast. I need to lock the gearbox so I can give it some welly. Any ideas (or an alternative solution)<br>
<br>
Cheers<br>
<br>
Stuart

<p></p><i>Edited by: <A HREF=http://p206.ezboard.com/bthetriumphdolo ... omiteuk</A> at: 20/10/06 10:49 am<br></i>

[alun n]

put an old clutch plate on the output shaft and use this to lock it off against the cross shaft when in gear?

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[Jon Tilson]

Alun's method may damage gear teeth...You can quite easily exceed the engine torque figures with a long bar....<br>
It may work bu the lats one I did was a combination of long scrwdrives thru flange holes locking against casing,<br>
heat on the nut and simultaneously holding the outsode of the flange with the biggest pair of stilsons my local machine shop had. With two of us at full grunt it shifted, so I was glad not to put that stress thru the box!<br>
Failing that grind or hacksaw thru one of the sides of the nut. I take it the flange is now scrap?<br>
Jonners

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[george]

take off the top cover and push the syncros on both 1/2<br>
3/4 over their gears this locks the shaft and you can then remove the nut

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[StuartA]

I'll give heat a go tomorrow. I'ved tried the screwdriver through the flange holes and managed to mangle 2 of them<!--EZCODE EMOTICON START :rolleyes --><img src=http://www.ezboard.com/intl/aenglish/im ... s/eyes.gif ALT=":rolleyes"><!--EZCODE EMOTICON END--> <br>
<br>
The flange is knackered so worst ways I'll cut if off<br>
<br>
Cheers<br>
<br>
Stuart

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[Jon Tilson]

idea that George. Do you think the gear teeth are strong enough? Those nuts can be very tight. I'm always a bit worried about those little teeth on the synchro bits. I had one come off in a Range Rover box that was ingested by the oil pump and totally stuffed the box. There was almost nothing re-usable. Unlucky but there you go. <br>
Jonners

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[george]

yes it was something that i always did<br>
the teeth are plenty strong enough

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[george]

how many of you pulled that box ? out they stoped us doing them from under after one of the lads damaged<br>
his shoulder iv'e done l/rovers on my own but no way would i attempt one of those

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[Jon Tilson]

It comes off in two halves if you take out the crossmember. First time I did it single handed as a whole thing with the transfer box...had a pair of trolley jacks and some long bars as rollers on the chassis. Rollled it back, stuck in a substantial wood platform and lowered away. Next time I took the transfer box off first.<br>
Main problem I found was lying on your back its so high up!<br>
A Landy is much easier as the floor all comes out and u do it from above but thats another story.<br>
Not sure I'd do one now....I was younger then...<br>
Jonners<br>
<br>
<br>
<br>


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[george]

yea i done four tracks like that thems pretty heavy boxes made off cast iorn not ally but we did them like that because of plenty of people in workshop <br>
but we then used to remove them from on top for saftey reasons

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