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  #1  
Old 15th December 2009, 09:12 PM
onedayTM onedayTM is offline
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Default sierra gearbox input shaft - excess play?

Hi guys,
Any mechanics out there. pulled bellhousing off gearbox to aid cleaning and have noticed there seems to be a fair bit of play in the input shaft. there isn't any info in the haynes manual, can anyone tell me what the tolerances might be.
cheers,
tony.
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  #2  
Old 15th December 2009, 09:44 PM
car.mad car.mad is offline
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what do you mean be excessive play? im only training but might be able to gove you some idea...

any more than a few mm would be bad. at a guess, would say to me bearings

but im only training someone else might know better

Jake
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  #3  
Old 15th December 2009, 09:49 PM
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Talonmotorsport Talonmotorsport is offline
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If the gearbox is knackered what will it cost to repair Vs buying another? I was going to rebuild my 1600 cvh rebore,rings, bearings etc then found one on ebay all ready done in bits for 1/4 of the machine and parts cost. If it costs £200 in parts and labour to get the box fixed you may only spend £40-60 on another gearbox. You pays your money you take your chances.........
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Old 15th December 2009, 11:04 PM
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It has been my personal experience with gearboxes that the cost of parts is usually prohibitive

Unless it is a cheap off the shelf bearing or Two that is knackered it is usually, way cheaper to buy a recon unit or find a decent second hand one

I priced up some major components for a Capri gearbox a few years back. The total cost of the parts ( Ford dealer prices ) Came to more than the price of a brand new unit, direct from Ford
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Old 15th December 2009, 11:13 PM
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Just read the original post

Quite often, bell housings are fitted with a replaceable bush.

Once the bell housing is removed, you will notice a fair bit more side to side & up/down play.

If it just feels a little wobbly with the bell housing removed it should be fine. ( The spigot bearing in the flywheel provides a great deal of support for the mainshaft )

If it has a substantial amount of end float or backlash, it'll need looking into.
The same will apply if the gear train soudns very rough
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Old 16th December 2009, 06:19 PM
onedayTM onedayTM is offline
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Hi guys,
thanks for replies, it is up/down, side to side play and not forward/back so I will suck and see as they say and put it together.
cheers.
tony.
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