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type 9 bush
locost 7 k - 12/5/14 at 05:04 PM

Who uses a bush in between the type 9 input shaft and flywheel?

I've been told without the bush the gearbox bearings wear out fast?

Can I get away without one?

Thanks


SteveWalker - 12/5/14 at 05:26 PM

I presume that you mean a spigot bearing? If so, then yes, you need one - without it the shaft will be supported only at the gearbox end and all the sideways forces will be transmitted to the gearbox front bearing and magnified by the leverage ratio.

[Edited on 12/5/14 by SteveWalker]


locost 7 k - 12/5/14 at 05:30 PM

Yup that's exactly what I mean, I'll get one made up, thanks


tims31 - 12/5/14 at 05:36 PM

I think you mean the bearing which is what Steve Walker was on about, you can get these from Burton power if it for a Zetec??
http://www.burtonpower.com/crank-spigot-bearing-21x15mm-fp347.html


locost 7 k - 12/5/14 at 05:58 PM

Yup a spigot bearing, it's for a rover k series with a pg1 flywheel and a v6 type 9 box


tims31 - 12/5/14 at 06:09 PM

Hmm,

Not sure what size bearing you need for the K series, I'm sure someone will know.


locost 7 k - 12/5/14 at 06:14 PM

I'll have a measure up tomorrow, be good if there's a ready made one about, thanks all for the replys


se7ensport - 12/5/14 at 06:16 PM

Give an MG enthusiast garage a call, it's a relatively common conversion.

You'll need a bush and a bearing according to QED: http://qedmotorsport.co.uk/qed-shop/view-all-products-in-shop?keyword1=k+series+spigot+bearing+caterham&redirected=1


ps without isn't an option, as the clutch bites it will pull the shaft out of alignment and make a terrible noise as it increase wear exponentially.

[Edited on 12/5/14 by se7ensport]


locost 7 k - 12/5/14 at 06:44 PM

Ordered one,
I only ask this question as my fwd car doesn't use one so thought I may get away without one on the kit car


mcerd1 - 16/5/14 at 11:57 AM

quote:
Originally posted by locost 7 k
Ordered one,
I only ask this question as my fwd car doesn't use one so thought I may get away without one on the kit car


FWD drive gearboxes generally have the input shaft better supported inside the box - and if they had a spigot bearing on the input shaft it would make them harder to remove the gearbox from the FWD car without also removing the engine


RWD boxes tend to use the spigot bearings to hold the front of the shaft in place - basically because the rest of the box can be made lighter / cheaper this way