Series 3 How much play is normal

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.

pef77

Active Member
Posts
213
Location
bristol
Engine out and noticed some play on the input shaft in the gearbox.. there is about 1.5 to 2mm side to side, how much is normal..
20200428_165809.jpg
 
The bearing at the inner end is a C3 clearance and as the shaft is also supported in the bush in the flywheel I would say that was ok.
Put a new bush in the flywheel before you refit.
 
Timely advice for me! I've just fitted a new clutch plate and cover, prior to changing the clutch release bearing and refitting the gearbox when the weather improves.

But I wasn't aware the crankshaft bush was a replaceable item. Just ordered one, but looking in 'the book', I've not yet found the section referring to its replacement.

Is it an easy fit? What's the process for getting the old one out? I realise I'll need to remove the clutch cover again for access, but I assume the bush can be replaced without needing to remove the flywheel or similar...?

Cheers,
Adam
 
I recall some play on mine too, to get the old bush out I’ve read previously some peeps pack it with wet tissue or grease then hammer in a tightish fitting dowel the hydraulic pressure pushes it out
The other way would be to cut with. Hacksaw blade and chisel out
 
I recall some play on mine too, to get the old bush out I’ve read previously some peeps pack it with wet tissue or grease then hammer in a tightish fitting dowel the hydraulic pressure pushes it out
The other way would be to cut with. Hacksaw blade and chisel out
I never had any success with the grease method, but hacksaw and some careful and gentle work with a very small chisel has never failed me.
 
Cunning! I'll see how I get on with that. Cheers!

You don't want to have any grease in or near the bush, when the new one goes in, as it will always migrate onto the friction plate by centrifugal forces...

The best way to ensure lubrication of the bush is to get a tin can or similar and fill with engine oil till it just covers the bush...

Then heat the tin over the stove for little while and then let the bush sit soaking in the oil till cool or best overnight...

This will sinter the bush with the oil, then take the bush out of the oil, wipe off excess oil and let it sit for an hour or so to let any extra surface oil bleed out...

Then you can insert the bush in the flywheel... The oil should assist insertion and will be more than sufficient to lubricate the pinion...
 
You don't want to have any grease in or near the bush, when the new one goes in, as it will always migrate onto the friction plate by centrifugal forces...

The best way to ensure lubrication of the bush is to get a tin can or similar and fill with engine oil till it just covers the bush...

Then heat the tin over the stove for little while and then let the bush sit soaking in the oil till cool or best overnight...

This will sinter the bush with the oil, then take the bush out of the oil, wipe off excess oil and let it sit for an hour or so to let any extra surface oil bleed out...

Then you can insert the bush in the flywheel... The oil should assist insertion and will be more than sufficient to lubricate the pinion...
not nowadays its not a sintered bush,dry is fine,besides input shafts are never tight the ops is quite normal
 
thanks for the reply, yeah the bell housing will be cleaned prior to refitting, i'm toying with the idea of overhauling the box as when i dropped the oil out two of the detent clips from the 3-4 synchro came out... i've seen bread used to remove the spiggot bush with an old input shaft.
 
Back
Top