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| Input gear / bearing 3 synchro https://www.ausmini.com/forums/viewtopic.php?f=2&t=98583 |
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| Author: | 850_Van [ Sat May 18, 2019 12:02 pm ] |
| Post subject: | Input gear / bearing 3 synchro |
Hi everyone, Question about input gear and bearings for a 3 synchro box. Currently fitting a 998 A+ engine to my 850 3 synchro gearbox. Bearing removal on the gear is obviously a 3 leg puller job once the circlip is removed, but how does everyone remove the bearing race from inside the clutch housing? When fitting the A+ to my 3 synchro, do I utilise my input gear, idler and primary from the 850 or use the A+ ? Do A+ ones differ? I'm planning on retaining my pre verto clutch if this helps On a side note, there seems to be a small chip in one of the the input gears teeth on the extreme outside- see pictures. Will this affect in any way? Happy to buy if someone has a spare they are willing to sell. |
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| Author: | Scoop [ Sat May 18, 2019 10:08 pm ] |
| Post subject: | Re: Input gear / bearing 3 synchro |
I normally heat up the clutch housing with a hot air gun and the race will drop out after a couple of minutes. I believe the A+ gears have a different helical angle so you can't mix and match those gears. Do you know it your 850 primary gear fits your 998 crank? There were 2 sizes for the 850 crank tails. The input gear for a 3 syncro has a longer snout so if you use the A+ gears you will need to space the input one out. Hope that helps, good luck with your project. |
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| Author: | drmini in aust [ Sun May 19, 2019 10:02 am ] |
| Post subject: | Re: Input gear / bearing 3 synchro |
To remove the outer ring of the roller bearing I tack weld a flat washer and bolt inside it, then pull the out with a nut, washer and a driveshaft yoke. Or you can run a mig weld bead inside it which will shrink the ring. |
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