I would like to change my gearbox in my 1959 948cc. However would like to put a 1098 box on that i know is in good condition. I have changed 948 boxes before but could someone advise on the additional parts I would need to put the 1098 box on to my 948.
Golden rule is to use the correct clutch matched to the gearbox, so 1098 clutch (kit) on a 1098 box etc. You will also need the release bearing fork and gear lever off a 1098 box as they are different to 948 ones..... I would also advise fitting a 1098 backplate to the 948 engine to maintain the correct distance to the pressure plate.
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PSL184- not being picky, but I don't think matching clutch to gearbox is the only thing to worry about- the 1098 gearbox and clutch combo will be fine, but they won't mate to the 948 flywheel!
Indeed they won't - one option of course is to also use the 1098 flywheel.... But I 'think' it may work ok if you simply use the 948 release bearing on the 1098 box -and all the 948 flywheel/clutch mech etc . But I'm sure someone who has actually done the job will be along soon.......
liammonty wrote:PSL184- not being picky, but I don't think matching clutch to gearbox is the only thing to worry about- the 1098 gearbox and clutch combo will be fine, but they won't mate to the 948 flywheel!
Yes, correct. I forgot about the flywheel. I've heard you can use the 948 clutch set up but I don't know for sure as I used a 1098 clutch to be on the safe side.
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I have a ribbed gearbox on a 948 engine. I retained the 948 flywheel and clutch and modified the clutch operating lever. Check the respective projections of the first motion shafts into the spigot bush.
