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EW gearbox stays in second
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Topic: EW gearbox stays in second (Read 4605 times)
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tck
Senior Member
Join Date: Jul 2004
Posts: 385
EW gearbox stays in second
«
on:
10 May 2017 at 13:43 »
Just went for a final check run on my wifes 1926 EW just round the village prior to a club run on Sunday all perfect changed up and down came in up my drive and could not get it out of second gear. Two years and about 250 miles ago it it was fitted with a new updated (4?) splined layshaft from the club and filled with grease and its been OK since then, clutch frees perfectly kickstart moves bike in second moving backwards and forwards clutch out turns engine even gentle force on gearbox arm with adjustable (because lever rods may bend) does not move it. I suppose its a strip
all advice welcome.
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oily bloke
Senior Member
Join Date: Mar 2009
Posts: 220
Location: Surrey. UK
Re: EW gearbox stays in second
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Reply #1 on:
10 May 2017 at 17:09 »
I had the same issue with the club replacement layshaft.
It appeared to me that the new gear and shaft had been machined to modern tolerances and caused 2nd to lock in or out of second.
The entry ramp onto the splines on the shaft had been a little peened due to the crash nature of the box and most likely my getting used to the bike's gear change. I found that adjustment and removing play in the gear stick and actuating arm linkages is necessary.
I gently lapped the shaft and gear with fine grinding paste sliding the gear up and down until it engaged in every direction on each spline/castellation.
After I re installed it I found it had improved but not enough so out again and lapped again making sure the gear rotated to engage the spline without resistance. All is now good. The gearbox has done over 1000 miles since with no issues.
This assumes you have built the box correctly!
Hope that helps.
Andy.
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Doug
Administrator
Join Date: Mar 2004
Posts: 4641
Location: Glen Mills, PA, USA
Re: EW gearbox stays in second
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Reply #2 on:
11 May 2017 at 05:55 »
Four or six spline? If the later, see this thread here:
https://www.douglasmotorcycles.net/index.php?topic=4061.msg18624#msg18624
Though that thread deals with shifting through second gear rather than actually being stuck in second gear. But it might give you some ideas.
-Doug
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tck
Senior Member
Join Date: Jul 2004
Posts: 385
Re: EW gearbox stays in second
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Reply #3 on:
27 Jun 2017 at 15:36 »
I am stripping the EW box to try and sort the problem
I have come to the inner cover and removed the single countersunk screw and the upper ratcher mechanism and spring. The large hexagon with the lower ratchet on it looks as if it is a nut that retains the inner cover bearing, is it? and if it needs to undo is it RH or LH thread?
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tck
Senior Member
Join Date: Jul 2004
Posts: 385
Re: EW gearbox stays in second
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Reply #4 on:
29 Jun 2017 at 18:00 »
I think my question (above) has been lost in the fog of the forum ....
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Doug
Administrator
Join Date: Mar 2004
Posts: 4641
Location: Glen Mills, PA, USA
Re: EW gearbox stays in second
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Reply #5 on:
29 Jun 2017 at 22:12 »
Patience, clear weather ahead.
Yes, the inboard ratchet is a nut. The thread is right-hand. Operating the kick start drives it on tighter, and they usually are very tight.
-Doug
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oily bloke
Senior Member
Join Date: Mar 2009
Posts: 220
Location: Surrey. UK
Re: EW gearbox stays in second
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Reply #6 on:
30 Jun 2017 at 16:23 »
I used an air gun to get it off.
Tight as a really tight thing!
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tck
Senior Member
Join Date: Jul 2004
Posts: 385
Re: EW gearbox stays in second
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Reply #7 on:
01 Jul 2017 at 07:06 »
Its off! thanks to all. I did not want to go the wrong waywith a lot of force
Now to find where that gear is sticking....
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tck
Senior Member
Join Date: Jul 2004
Posts: 385
Re: EW gearbox stays in second
«
Reply #8 on:
08 Jul 2017 at 07:17 »
Yes!
Judicious use of fine grinding paste and a few small bevels did the trick I quite expect it to need more attention in 2019 but its a supprisingly easy job
Thanks to all for your advice
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EW gearbox stays in second