Gearbox main shaft "C" clips
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This is embarrassing, but I took the main shaft out of the gearbox to clean and install new bearings on the "in" and "out" end of gearbox case.
In reassembling I find myself with an "extra" c-clip.
There is one holding the third gear synchro in place and two at the input bearing.
I have one more and do not see it on the exploded view in the manual.
It looks like it should go on after the "first and second gear synchronizer hub".
hoping someone can confirm. I kept my parts together so as not to not have these issue upon reassembly, but seems that the weeks between tear down and assembly have left my mind with a lapse.
In reassembling I find myself with an "extra" c-clip.
There is one holding the third gear synchro in place and two at the input bearing.
I have one more and do not see it on the exploded view in the manual.
It looks like it should go on after the "first and second gear synchronizer hub".
hoping someone can confirm. I kept my parts together so as not to not have these issue upon reassembly, but seems that the weeks between tear down and assembly have left my mind with a lapse.
- Briggs1
- Third Gear
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- Joined: 17 Jun 2004
see the video link at about 9:00 minute mark.
There must have been a running change that was not documented in the manual.
https://www.youtube.com/watch?v=ncEH3FrHz2E&t=815s
There must have been a running change that was not documented in the manual.
https://www.youtube.com/watch?v=ncEH3FrHz2E&t=815s
- Briggs1
- Third Gear
- Posts: 283
- Joined: 17 Jun 2004
Quite painful to watch as this guy makes just about all the wrong moves but if you can stay with it you will see where your c clip belongs. Looks as if SENC box has been apart before.
https://www.youtube.com/watch?v=ncEH3FrHz2E
https://www.youtube.com/watch?v=ncEH3FrHz2E
- Craven
- Coveted Fifth Gear
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Well, I won't make any comments about long and boring videos... but you made me go back and watch my own and I did, in fact, have a circlip at that location. Must have had it under one of the pieces in that picture, but it is going back in at the 6 minute mark in the link.
https://youtu.be/0hUcB-4b9C0
It is laid out at the beginning of the video. And if you are really bored, part four of the disassembly videos is where it comes out
https://youtu.be/0hUcB-4b9C0
It is laid out at the beginning of the video. And if you are really bored, part four of the disassembly videos is where it comes out
Henry
69 Elan S4
65 Seven S2
69 Elan S4
65 Seven S2
- SENC
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Briggs : the manual picture you posted is correct for the period and doesn't need a circlip in that assembly as the sleeve that fits under 1st gear is what holds the 1st/2nd synchroniser hub in place.
However, in all of the later boxes - ie those that don't use a sleeve under 1st gear and either have the rear mainshaft bearing held in place with a locknut or a circlip - the 1st/2nd synchroniser is held in place by a large circlip.
Leaving it out will cause numerous issues, the main issue being gear selection issues.
However, in all of the later boxes - ie those that don't use a sleeve under 1st gear and either have the rear mainshaft bearing held in place with a locknut or a circlip - the 1st/2nd synchroniser is held in place by a large circlip.
Leaving it out will cause numerous issues, the main issue being gear selection issues.
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promotor - Fourth Gear
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- Joined: 16 Mar 2012
Craven wrote:But if you look at the later views ?no sleeve? the c clip is not shown.
I wonder how many people have left that circlip out after reading the manual?!!
And if you look in the mk2 cortina parts manual there's a circlip (I presume the one we are talking about) but it's in the wrong place!
The mk2 cortina workshop manual finally gets it right!
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promotor - Fourth Gear
- Posts: 824
- Joined: 16 Mar 2012
Thanks for all the feedback. Having a part left over is never a good feeling.
Luckily I stopped all work once I saw it out of place, so getting the C-Clip back where it belongs is not a problem.
Luckily I stopped all work once I saw it out of place, so getting the C-Clip back where it belongs is not a problem.
Last edited by Briggs1 on Wed Nov 13, 2019 10:33 am, edited 1 time in total.
- Briggs1
- Third Gear
- Posts: 283
- Joined: 17 Jun 2004
Over 40 years since I had one of these gearboxes in bits....happy memories in my father?s workshop learning (his Lotus Cortina g/b consumed itself, the later Ford 2000E replacement gearbox was cheaper than the replacement original Lotus gear set alone, just needed a change of spigot bearing).
I seem to recall all the circlips had to be correct size (width) too?
I seem to recall all the circlips had to be correct size (width) too?
1966 Elan S3 Coupe
1994 Caterham 7
1994 Caterham 7
- englishmaninwales
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