Saturday, May 31, 2008

Type 9 Gearbox Update

Finally got the CAD model sorted for the gearbox adapter and had the first one machined, fits ok although we have adjusted a couple of the dimensions after trying it on several boxes.


Had the first rear housing welded up, just need to make a support bush and re-drill the selector shaft, managed to move it forward by 107mm, looks like it should work ok.



Managed to pick up a couple more gearboxes of eBay, got a couple of 2.8 boxes which have a slightly taller first gear.

One thing to watch out for if you are considering fitting a Type 9 is there are a variety of input shaft dimensions, I have four boxes and three different lengths of input shaft. Learnt this today the hard way after fitting everything onto one of the boxes I had lying around, bolted it all to the back of an engine only to find out that my measurements were 20mm out, input shaft was only about 5mm into the flywheel. After alot of head scratching and thiking about other conversions / adapters I had seen, finally realised that the input shaft was 20mm shorter, must get myself a Type 9 gearbox manual.

Next job is to sort out a rear mounting, picked up a Sierra mount but I think it will be too wide to fit between the chassis rails. Been looking at what else is available and came across the one below which Westfield sell, bit pricey at £20 but may be the only option.

Been quoted around £100 for the propshaft from Dave Macs in Coventry, cant really order that untill the gearbox is fitted and I can give them the correct measurements.

I estimate that the gear lever position is going to be 35 mm back from its current position, still hoping it will all fit under the originall tunnel cover.

Plan is to have it all up and running for the RBRR (Round Britain Reliability Run) in October, hopefully sooner...................



6 comments:

David Powell said...

Nice work Mike.

Those gearbox mounts are the BEST.

Very solid location and good quality.

You can instantly feel the firmer mounting, the gearlever stops dancing around :) I recommend them, I use that mount.

The 2.8 Type 9 and the Sierra have different length shafts, yep...Not sure of the other variations.

Anonymous said...

Have you any of the Type 9 convertor plates for sale?
Rob

Anonymous said...

input shaft dimensions which one do I need!
You have my mail address!
Thakns and sorry to keep asking questions!
Rob

Unknown said...

Hi, I would be interested in an adapter plate as well. Do you have any for sale?

Unknown said...
This comment has been removed by the author.
John said...

Many thanks for the inspiration and your pioneering work,following in your footsteps....how did the g/box perform...reverse switch??
Thanks
John