Author Topic: WTB 336 gearbox.  (Read 727 times)

0 Members and 1 Guest are viewing this topic.

Offline andyj007

  • Newbie
  • *
  • Joined: Jul 2021
  • Location: boxted, colchester
  • Posts: 25
WTB 336 gearbox.
« on: Friday,August 13, 2021, 11:53:02 PM »
Possible after a 336 gearbox, good condition or rebuilt idealy ?

colchester uk

thanks



Offline 4129R

  • Super Member
  • *******
  • Joined: May 2014
  • Location: Norfolk, United Kingdom, not far from Hethel the home of Lotus.
  • Posts: 2,736
Re: WTB 336 gearbox.
« Reply #1 on: Saturday,August 14, 2021, 12:04:20 AM »
Please remind me, which one is the 336 gearbox?

I might have one up here in Norfolk, so not too far away from you.

Ford or Renault bellhousing?

I have 1 of each.

Offline andyj007

  • Newbie
  • *
  • Joined: Jul 2021
  • Location: boxted, colchester
  • Posts: 25
Re: WTB 336 gearbox.
« Reply #2 on: Saturday,August 14, 2021, 01:25:20 AM »
sorry for my lack of information..
yes 1969 s2 renault 4 speed


Offline 4129R

  • Super Member
  • *******
  • Joined: May 2014
  • Location: Norfolk, United Kingdom, not far from Hethel the home of Lotus.
  • Posts: 2,736
Re: WTB 336 gearbox.
« Reply #3 on: Saturday,August 14, 2021, 03:15:24 AM »


You are welcome to pop up, about a 90min drive, and see what I have got.

PM sent with my details.
« Last Edit: Saturday,August 14, 2021, 03:19:31 AM by 4129R »

Offline 4129R

  • Super Member
  • *******
  • Joined: May 2014
  • Location: Norfolk, United Kingdom, not far from Hethel the home of Lotus.
  • Posts: 2,736
Re: WTB 336 gearbox.
« Reply #4 on: Wednesday,August 18, 2021, 03:49:34 AM »
https://www.renault16shop.com/website/index.php?ProductCategory=4857333&Index=6

This seems an excellent place for 336 gearbox parts including the elusive speedo drive.

Located in Belgium, but the site translates into English.

€1,800 exchange, plus VAT tax and carriage seems to make gearboxes an expensive item. 

Offline Grumblebuns

  • Super Member
  • *******
  • Joined: Aug 2012
  • Location: San Diego area
  • Posts: 1,531
Re: WTB 336 gearbox.
« Reply #5 on: Thursday,August 19, 2021, 08:24:51 AM »
I'm assuming that the 336 gearbox listed on the site is for the R16s only. Also, perhaps I'm asking too little for the Lotus 336 boxes I've sold in the past.

Offline 4129R

  • Super Member
  • *******
  • Joined: May 2014
  • Location: Norfolk, United Kingdom, not far from Hethel the home of Lotus.
  • Posts: 2,736
Re: WTB 336 gearbox.
« Reply #6 on: Thursday,August 19, 2021, 09:55:18 AM »
I'm assuming that the 336 gearbox listed on the site is for the R16s only. Also, perhaps I'm asking too little for the Lotus 336 boxes I've sold in the past.

The Hewland diff would be different.

I think the Renault diff would allow you 4 reverse gears and 1 forward. The thought of doing 120 in reverse is not a good one.

Does anyone know if the splined spacers which cover the O rings on the diff output shafts are Renault or Lotus parts as they are not shown on the diff parts diagram. These are the spacers which slide down the splines and which the shims butt up against to get the roll pins exactly lining up in the shaft and driveshaft 5mm holes. 

Offline BDA

  • Super Member
  • *******
  • Joined: Jul 2012
  • Location: North Carolina
  • Posts: 9,998
Re: WTB 336 gearbox.
« Reply #7 on: Thursday,August 19, 2021, 10:13:50 AM »
I don't think the Hewland would give you four reverses and one forward. It is designed as a mid engine transaxle in the first place. (Is it true that at least one Renault tranny requires that the crown gear be swapped to the other side of the pinion?). Since the Mk. 8 and FT200 Hewland trannies would easily mate to a TC motor since they were used on different Kent style blocks. I don't know about the Renault motors but I suspect if you looked somebody in Europe would have something to make it work

On the other hand, not having synchronizers and straight cut gears, they wouldn't make good street trannies.

Offline jbcollier

  • Super Member
  • *******
  • Joined: Nov 2013
  • Location: Edmonton, Alberta, Canada
  • Posts: 5,978
Re: WTB 336 gearbox.
« Reply #8 on: Thursday,August 19, 2021, 12:41:12 PM »
R16 336 transaxles do indeed turn the other way.  Lotus 336 transaxles are unique.

R17 transaxles do turn the right way.  The four speed is the 352 and the five speeds are 365 and 395.

The seal run/spacer is a Lotus only part.  Though you could easily make one from R16 or R17 half-shaft, inner CV joints.

Lotus 336 gearboxes are not worth much as they are very reliable and sturdy.  No demand = low price.

Offline 4129R

  • Super Member
  • *******
  • Joined: May 2014
  • Location: Norfolk, United Kingdom, not far from Hethel the home of Lotus.
  • Posts: 2,736
Re: WTB 336 gearbox.
« Reply #9 on: Wednesday,September 01, 2021, 08:19:05 AM »
The seal run/spacer is a Lotus only part.  Though you could easily make one from R16 or R17 half-shaft, inner CV joints.

As you suggested, I bought 2 x used drive shafts from Renault 16 in Holland. €75 each plus import tax (VAT @ 20%).

When you cut the inner rubber gaiter covering the CV joint, lots of smelly oil comes out all over the place, 4 large ball bearings fall out, and the inner part of the driveshaft falls away very easily.

The spacer is 36mm in diameter and about 11.2mm thick, but the spacer I am using for a pattern had 1.1mm of shims next to it. The inner part of the driveshaft is also 36mm as you would expect, and the length of the inner splines is about 44mm so I should be able to get 3 spacers made from each driveshaft. Thank you for the tip JBC, it seems we can make unobtainium with a bit of ingenuity.