Author Topic: 73 eldorado pinion query  (Read 2282 times)

Offline ray bear

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73 eldorado pinion query
« on: September 04, 2015, 05:06:31 AM »
Repairing a mates bevel drive for his 73 Eldorado and I have an Eldo and V7 sport  of my own and the pinion carrier on both my bikes have flats machined into them and drilled  to allow the ingress of oil to the top bearing however my mates bike does not have this flat machined into it and I cant see how the top pinion bearing can get enough oil to survive and am thinking about machining flats onto the carrier and drilling a hole for the oil to migrate to the top bearing or do  you just  overfill the diff so the oil is at the bearing level, can anyone enlighten me on this matter.  Thanks Bill
73 V7 sport
73 Eldo police special
68 BSA rocket 3
74 Norton Commando
78 Honda CBX 1000
47 HRD vincent Rapide
XT 500 Yamaha
76 Convert
84 FLHX limited edition electra glide

Offline mtiberio

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Re: 73 eldorado pinion query
« Reply #1 on: September 04, 2015, 07:30:57 AM »
all sorts of variants on those parts. some had small semicircular cutouts nearer the bearing for possibly the same purpose. the bearings have last over 40 years at this point. do you really want to mess with it?

why are you repairing it? pinion bearing failure? I wouldn't overfill, could lube the tire
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Offline jacksonracingcomau

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Re: 73 eldorado pinion query
« Reply #2 on: September 04, 2015, 02:44:16 PM »
Repairing a mates bevel drive for his 73 Eldorado and I have an Eldo and V7 sport  of my own and the pinion carrier on both my bikes have flats machined into them and drilled  to allow the ingress of oil to the top bearing however my mates bike does not have this flat machined into it and I cant see how the top pinion bearing can get enough oil to survive and am thinking about machining flats onto the carrier and drilling a hole for the oil to migrate to the top bearing or do  you just  overfill the diff so the oil is at the bearing level, can anyone enlighten me on this matter.  Thanks Bill
I put this question a while ago but couldn't not do it, when you modify bearing carrier (or use later one) you have to grind away housing to match, it was one of earliest drive box mods, mine is 67 box with no oilways I thought all the deep sump ones had them, obviously not, maybe it came with later case with revised level plug ?
Was sensible mod for all reasons anyway, I used  the much later bigger bearings too with o ring flange too
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