Wednesday 13 July 2016

Gearbox Replacement Procedure

Brazilian Bay - Gearbox Replacement


This is a summary guide of my Gearbox replacement.

The Brazilian Bay Kombi gearbox is made in Brazil and is known to have reliability / poor quality manufacture and is best replaced by a German Gearbox.

Here is the progress summary of my Gearbox replacement. Basically its a Late IRS Beetle Gearbox from a 1300-1600cc Late Beetle (1302/1303s Models with the 1600s being the best)

In this case I swapped the RP code Brazilian Bay Gearbox with a 1302s 1600 AH code gearbox

Firstly find and select a suitable gearbox here is my AH code gearbox (new CV joints or Beetle CV joints are required as beetle Gearboxes have a 94mm Diameter CV joint and Bus / Brazilian Bays use a 100mm so you will need to have Bus Outer & Drive shafts and Beetle Inner CV joints)


You need to clean the gearbox and remove old CV joints.


Remove rear bumper & Valance:


Remove Engine:


Remove Old Gearbox:


Swap Over Nose Cone & Hockey stick from Old to new:


Install Beetle CV Joints on van:


Install new gearbox & connect up:


Refit engine. Test gearbox while still on axle stands to ensure all gears work.

Once satisfied away you go with a German Quality Gearbox.

Full comprehensive write up of each phase of my install is on my T2bay bay blog.


I will include this in a full step by step guide in the next version of the service manual also found on my blog.














7 comments:

  1. We have a 2007 Danbury vw jumps out of 4th gear. We can't source a replacement. Is it possible to swap to a different gearbox from different vehicle? Eg beetle/polo

    ReplyDelete
    Replies
    1. Hi, Thanks for your comment - Yes gearbox replacements are available. Air cooled (upto 2006) are a simple swap from a IRS beetle. BUT 2007 on wards water-cooled have an extra long input shaft (to accommodate the engine adapter spacer) So you will need a Late (1970s) IRS beetle gearbox and a longer input shaft fitted. I would suggest the Brazilian Bay forum and this post. http://brazilianvwbay.forumotion.com/t5525-replacing-aquabay-gearbox-with-reconditioned-german-gearbox

      Delete
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