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HK07

Member Since: 15 Dec 2016
Location: Hampshire
Posts: 746

2007 Defender 90 Puma 2.4 HT Cairns Blue

Some (LT77) gearbox help please gentlemen

Some of you may have been following my Rebuild of Derek.

I was recently offered, thru a mate of a mate, an Ashcroft upgraded and refurbished LT77, and as ours was easily accessible due to the rebuild we jumped at it.

We took off the transfer box from the old GB and after changing all the seals and gaskets we bolted it to the new GB, with that in nuetral and the shaft spinning we connected it back to the engine.

Now the

is in gear and we can't get it out of gear, therefore we have lost our rolling chassis.

How could this have happened?

We are thinking/hoping it just all needs to be spinning to sort its self out. And we are getting close to a start up.

Can anyone throw any light on what's happened please?

Does it all need to come back out again or simply take off the gear selector for adjustment?

Thanks guys.

HK07 2007 90 Puma - Love it - Best car I have ever owned.

1989 Ninety 200tdi - Love it - Second best car I have ever owned.

1951 80" Series 1 - Love it - Third best car I have ever owned.

28th May 2018 10:42am

ibexman

Member Since: 13 Dec 2008
Location: Essex
Posts: 2945

Take off top housing would be first. Port off call

28th May 2018 11:37am

HK07

Member Since: 15 Dec 2016
Location: Hampshire
Posts: 746

Due to a clutch issue, we had to separate the gearbox from the engine again today.

The gearbox shaft is definitely spinging freely, it must be the transfer box, but what/how?

We are going to leave the prop shafts off and start it up and see what happens.

Any advice would be gratefully received.

Thanks 2007 90 Puma - Love it - Best car I have ever owned.

1989 Ninety 200tdi - Love it - Second best car I have ever owned.

1951 80" Series 1 - Love it - Third best car I have ever owned.

2nd Jun 2018 7:44am

Pilgrimmick

Member Since: 16 Nov 2015
Location: Highlands
Posts: 582

May be a bit obvoius, but is the handbrake engaged? 80" 1948
Lightweight V8
Bowler Tomcat
130 Station wagon
90 300tdi
(Santana PS10 pick up)
Range Rover L322 (Ful fat)

2nd Jun 2018 11:37am

Retroanaconda

Member Since: 04 Jan 2012
Location: Scotland
Posts: 2645

One of the bolts that join transfer box to gearbox can, if put in the wrong hole, actually jam the transfer box gears. Would be worth checking that.

2nd Jun 2018 11:47am

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20359

Try switching the transfer box between low, high and in and out of diff lock too.
It maybe stuck in neutral.
After all, you can have the motor running in a gearbox gear but the transfer box in neutral and no drive.

Nothing to lose by trying it, but as you say with props off and somone to keep an eye out is easiest and safest.

Good luck.

$W33T $0U7H3RN $UG4R
🇬🇧🏴󠁧󠁢󠁥󠁮󠁧󠁿🏴󠁧󠁢󠁷󠁬󠁳󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿🇮🇪🇺🇸⛽️🛢️⚙️🧰💪

2nd Jun 2018 12:15pm

HK07

Member Since: 15 Dec 2016
Location: Hampshire
Posts: 746

Hk07

All useful things to try - many thanks.

The handbrake thing did occur to me, but the drum is spinning.

I will update when we figure it out. 2007 90 Puma - Love it - Best car I have ever owned.

1989 Ninety 200tdi - Love it - Second best car I have ever owned.

1951 80" Series 1 - Love it - Third best car I have ever owned.

2nd Jun 2018 6:09pm

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