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[Healeys] Gearbox jumping out of 4th gear coasting downhill or decelerat

Subject: [Healeys] Gearbox jumping out of 4th gear coasting downhill or decelerating
From: ynotink at msn.com (WILLIAM B LAWRENCE)
Date: Fri, 10 Nov 2017 23:30:35 +0000
References: <603948323.115630.1509938507987@connect.xfinity.com>, <CAFBXTkJ72b+_PJtX0JWW5Q7AiQQ5sJ-3XvNn5PEgenO_mG-8CQ@mail.gmail.com>
I've noticed in some cases that the shift rails in the box are actually worn 
where the detent balls ride. If that gets bad enough the detent action may be 
too weak hold the gears engaged.


Bill Lawrence

BN1 #554

________________________________
From: Healeys <healeys-bounces at autox.team.net> on behalf of Alan Seigrist 
<healey.nut at gmail.com>
Sent: Friday, November 10, 2017 2:47:01 AM
To: Bob Spidell
Cc: healeys
Subject: Re: [Healeys] Gearbox jumping out of 4th gear coasting downhill or 
decelerating

Your balls and springs are likely missing!


I've finally removed my geabox and done some preliminary inspection.  Shifting 
forks are worn down some--not surprising in a 200K mile box--but all gears look 
to be in pristine condition.  One thing I noticed is that the first motion 
shaft seems to wobble a bit, unlike the output shaft with turns freely but 
doesn't wobble much if at all (both large bearings appear to be in perfect 
condition).  Should the rear of the first motion shaft fit snugly into the 
front of the output (main) shaft, or is a bit of play to be expected?   I've 
thought perhaps the increased compression in the new engine might cause some 
'buckling' in the first/output shafts--more than the sliding hub can 
restrain--so could this be the cause of jumping out of 4th gear?


Also, DWR sells an uprated 3-4 sliding hub, which it claims eliminates the 
'jumping out of gear problem,' so this issue is apparently not uncommon.


Bob


--------------------------------
Bob Spidell - San Jose, CA

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