Rb20DET won’t go into 5th

[Scottyd 240z]

Hi, 

I recently installed my rebuilt N/A 30/25 and took it for its first run and it won’t select 5th gear, won’t let me push it in far enough to engage the gear, if I push and Hold it then let the clutch out it grinds as soon as I take the pressure of its like neutral, was working fine before, any ideas of why this could be happening. Thanks Scott.

[PLYNX]

What gearbox are you running ?

[Scottyd 240z]

RB 20 DET

[BK]

You obviously have something jamming up your overdrive selector coupler. Could be a main shaft selector tooth, could be a selector coupler locating clip.

Box out mate....

[BK]

19 hours ago, Scottyd 240z said:

won’t let me push it in far enough to engage the gear, if I push and Hold it then let the clutch out it grinds

Absolutely do not do this ! That's a really good way to destroy your main shaft 5th gear selector teeth. 

[Scottyd 240z]

Thanks BK. 👍 

[Scottyd 240z]

Problem solved.

Had the gearbox pulled apart, found that the Speedo drive pinion gear has disintegrated and a piece of it has stopped the selection of 5th gear.

[BK]

Glad to hear it's sorted after pinpointing the actual problem - good work 👍