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> Pilot bearing setting depth, conflicting info
falcor75
post Jan 4 2020, 02:32 AM
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I have some trouble with setting the depth of my pilot bearing.

According to the Haynes manual the bearing should be seated recessed 3.2 mm from the clutch side of the flywheel. This info is the same in the repair manual document. On the Pelican board it says to seat the bearing flush with the crank side of the flywheel. I am guessing the data in the Haynes and workshop manual are the correct info but it still doesnt align with my reality (more info below)

The picture below is from the repair manual and it shows the bearing recessed from the clutch side. But it also shows the gearbox input shaft going thru all of the pilot bearing.

Attached Image

When I install the bearing recessed as above in my flywheel and bolt everything up the input shaft does not go thru the whole bearing, in fact it doesnt reach all the way thru the bearing at all....? Se below.

Attached Image

This feels wrong to be since the input shaft barely will be supported by the pilot bearing and either my input shaft is too short (god I hope not) or something else is wierd in my combination of parts.

Should I change my pilot bearing position to support more of the input shaft?

Edit: Also part nr 7 doesnt exist at all in my crank (78 mm DPR crank installed by the engine builder)
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Posts in this topic
falcor75   Pilot bearing setting depth   Jan 4 2020, 02:32 AM
sixnotfour   picture of how the other side should look   Jan 4 2020, 08:42 AM
cuddy_k   I’m not an engine or trans expert like @Mark He...   Jan 4 2020, 10:43 AM
dr914@autoatlanta.com   the holes in the flywheel look weird to me, the pi...   Jan 4 2020, 10:55 AM
Mark Henry   the holes in the flywheel look weird to me, the p...   Jan 4 2020, 12:55 PM
Mark Henry   #7 spacer is a 914/901 only part (IIRC), the bus d...   Jan 4 2020, 12:17 PM
Bleyseng   Part number 7 is a spacer that is inside the crank...   Jan 4 2020, 12:54 PM
falcor75   I mounted the flywheel to the crank and bolted the...   Jan 4 2020, 01:49 PM
Frank S   I'll have to look in the crank of my original ...   Jan 8 2020, 11:34 AM
falcor75   Well there wasnt any spacer on my stock 2.0 crank ...   Jan 7 2020, 11:47 PM
wndsrfr   Don't forget the "O" ring recessed i...   Jan 8 2020, 06:57 AM
anderssj   I can see there is a washer under the ball for t...   Jan 8 2020, 07:54 AM
falcor75   I can see there is a washer under the ball for ...   Jan 8 2020, 12:54 PM
Mark Henry   Down and dirty quick check. Virgin OE flywheel 3m...   Jan 8 2020, 03:30 PM
falcor75   Down and dirty quick check. Virgin OE flywheel 3...   Jan 8 2020, 11:42 PM
falcor75   From the clutch friction surface down to the surfa...   Jan 9 2020, 11:17 AM
falcor75   So this is the position of the clutch arm when ...   Jan 11 2020, 03:35 AM
cary   Washer under the pivot arm ?   Jan 11 2020, 05:39 PM
falcor75   Yes there is one washer that I can see under the p...   Jan 12 2020, 03:32 AM
falcor75   Took the gearbox off again today and removed the p...   Jan 15 2020, 12:30 PM
falcor75   http://www.914world.com/bbs2/uploads_offsite/matsg...   Jan 15 2020, 10:38 PM


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