 revisiting After side shift tranny rebuild - still shift into 1st issues, About 50% goes shift right in, 50% no can do |
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Tuesday, 15 July 2025 |
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| jjs3rd914 |
 Nov 20 2018, 12:23 PM
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Member  Group: Members Posts: 124 Joined: 8-August 04 From: Sarasota, FL Member No.: 2,476  |
Side shift tranny rebuilt
All gears shift beautiful but 1st, linkage adjusted properly, bushings all new No issues with clutch tube in tunnel New PP, TO bearing, 6 spring clutch disk Stock flywheel cut .025" and TO bearing fork pivot ball washer added by .025" to the stock .060" All motor mounts good Clutch adjusted properly Used very good 1st reverse slider Used almost new 2nd-5th dog teeth with appropriate brake bands etc. Used NEW synchro ring About half the time it goes right into 1st very smoothly. No grinding, no issues with reverse, linkage feels great. Other times will not budge into 1st gear. By going into 3rd gear first then trying seems to work most of the time as workaround. SO after reading numerous threads we have concluded that could the issue be 1. Are new synchros much stiffer than used one. SO DO THEY NEED TO BE WORN IN? Could that be part of the problem and could problem diminish with use? 2. And Using a 2-5 dog tooth gear and brake bands also be part of the problem? I do have original 1st gear brake band and am willing to buy the correct 1st gear dog gear. Also I have many good usable "worn in" synchro rings to use instead of the new one. So if problem does not go away, could I be faced to replace the above to get it right? I have no issue doing so. Just want it right. So anyone else faced with simliar issue and how did you solve it. Some Prior threads seem to point into maybe not using a new synchro and not using the 2-5 dog gear. Thanks jjs3rd914 |
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| dr914@autoatlanta.com |
Nov 21 2018, 01:36 PM
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914 Guru Group: Members Posts: 8,188 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
yes they are hard going into first especially with a new synchro band. Sometimes have to shift into second and then go back down into first. Since you have a new synchro, maybe fill with Swepco transmission fluid and just drive for awhile.
We assume that they did a proper job on the gearbox and everything is tight (like the rear expansion bolt) and that the shifter bushings are well lubricated |
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Posts in this topic
jjs3rd914 revisiting After side shift tranny rebuild - still shift into 1st issues Nov 20 2018, 12:23 PM
wndsrfr
Side shift tranny rebuilt
All gears shift beauti... Nov 21 2018, 06:59 AM
BeatNavy
Both of mine are bitchy going into first...someti... Nov 21 2018, 07:15 AM jjs3rd914
Both of mine are bitchy going into first...somet... Nov 21 2018, 01:00 PM BeatNavy
[quote name='BeatNavy' post='2667381' date='Nov 2... Nov 21 2018, 01:17 PM KELTY360 I think this is fairly normal. In 1973, when I had... Nov 21 2018, 02:14 PM jjs3rd914 Thanks all,
Yes all bushing are lubricated. Every... Nov 21 2018, 02:59 PM dr914@autoatlanta.com Swepco is super slick and good for the syncros and... Nov 21 2018, 03:04 PM jjs3rd914 I think it is Red Line fluid that tends to finds l... Nov 22 2018, 07:37 AM r_towle 2nd to 1st all the time.
Learn the habit Nov 21 2018, 07:22 PM Porschef I'll third or fourth the same. My last bugaboo... Nov 22 2018, 07:51 AM |
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