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Appealing to the superior knowledge of the LR4X4 collective....

I've started a journey from manual to auto in the 90.

Its a TD5 and I've acquired a kit from the good folks at Ashcroft's. 

Alas, they are not available for consultation today and I was rather hoping to install the auto box today....

in the kit they have sent what appears to be 2 flex plate support plates....

IMG_7807.thumb.JPG.b0bc1942cf53508fb89c141957344ad7.JPG

One is thicker than the other.

Uncle Ralph (Western variety) helped with a diagram that shows only the one!

(item 5 in the link)

http://www.albrit.de/epc.cfm?PAGE=G01090&CAR=L5&SPRACHE=EN

Does anyone know for sure how both should be used or should I apply myself to other tasks today and have a conversation with the knowledgable Dave Ashcroft himself tomorrow?

Thanks in advance.

Neil

 

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is it to alter the torque convetor depth ??

http://www.ashcroft-transmissions.co.uk/automatic-gearboxes/zf4hp22.html

Torque Converter Depth Table

The box code is the last 3 digits of the second number down on the name plate on the left hand side of the autobox.

Box Code.....................Depth in mm

061................................... 22

064....................................22

065....................................27

332....................................51

593....................................51

699....................................51

727....................................27

728....................................83

740....................................51

741....................................51

742....................................51

744....................................18

748....................................18

747....................................27

757....................................27

759....................................27

763....................................83

764....................................27

765....................................27

766....................................96

767....................................27

768....................................83

769....................................83

773....................................96

Please call if you have any other queries.

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I thought it might be Les.

I've gone for an upgraded torque converter so the standard rules and codes may not apply. 

I have read that I will need up to 2mm between flex plate and torque converter lugs before attaching the two. 

It may be that the thinner ring is to achieve this. I have assumed the thicker of the two will be the support plate. 

Just trying to find out for sure. 

I will do some measuring later. 

 

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This seems to help some.....

Some text in a label describing the disks as spacers. 

IMG_7808.thumb.JPG.fc285412afacaa7d91afe33560d2ec23.JPG

The mystery is solved.

Now dry fittted and measured and 2mm spacer selected.

 

Neil

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After emptying and organising all the contents of the boxes, there was a complete set of bolts and a retaining plate so beyond any doubt the Ashcroft team had supplied options in the way of X2 spacers, 1 of 1mm and 1 of 2mm...

P3120061.thumb.JPG.50c5e401542d88735fe2231cf82ac8dd.JPG

Once all measured to get the required gap it was torque wrench time.....

More in another thread...

Neil

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Pretty sure you are going to need a new flywheel. The auto flywheel has less mass (that looks beefier from memory) and *also* has holes for each of the triangle tips of the flex plate. Otherwise you are going to find it difficult to bolt it to the torque converter - the hole at the bottom is not really for doing those up - you might manage, maybe, but I tried once (don't ask!).

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  • 1 year later...
On ‎3‎/‎12‎/‎2017 at 6:17 AM, Les Brock said:

is it to alter the torque convetor depth ??

http://www.ashcroft-transmissions.co.uk/automatic-gearboxes/zf4hp22.html

Torque Converter Depth Table

The box code is the last 3 digits of the second number down on the name plate on the left hand side of the autobox.

Box Code.....................Depth in mm

061................................... 22

064....................................22

065....................................27

332....................................51

593....................................51

699....................................51

727....................................27

728....................................83

740....................................51

741....................................51

742....................................51

744....................................18

748....................................18

747....................................27

757....................................27

759....................................27

763....................................83

764....................................27

765....................................27

766....................................96

767....................................27

768....................................83

769....................................83

773....................................96

  • P8021219_WhatsAppImage2018-07-20at15_03_22.thumb.jpeg.b02a4e378928992829ef80bf785c111b.jpeglease call if you have any other queries.

well this is one of my gearboxes  and my question is how i measure the depth  ?

because if a take the convertor the gap is 9.6 mm

if a meassure direct on the box is more than 2.5 cm 

please help this old man  thanks

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When the torque converter has fully located onto the pump it is essential to then measure the distance from the bellhousing front face to the torque converter feet ( also known as the flange that the flexplate is bolted to).

 

This may help IIRC

 

https://www.youtube.com/watch?v=ygYQpd29ipY

 

Its been a long while since I did mine so hopefully correct

Edited by Les Brock
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Good video - shows how difficult and fiddly it is to do it correctly. The other thing that is sometimes wrong is missing dowels that fit between trans and flywheel housing (certainly are on the 300tdi, not sure about td5) - if these are not fitted there is too much wiggle room which leads to a  cracked flex plate.

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As already mentioned... It’s very important to get the torque converter installed on the gearbox correctly.

I stood the gearbox on end and lowered the TC on.. Took several attempts to get it fully seated with spines and pump drive notches engaged.

The I put a flat edge across the bell housing and measured the gap from straight edge to the lugs / bolt points on the TC.

Next, measure the distance from the engine (Where the bellhousing lands) to the side of the flex plate which bolts to the TC.

The difference will help you decide if any spacers are needed behind the flex plate.

Dave Ashcroft advises 1 - 3 mm to make sure the TC it not running in contact with the Grarbox, but rotating on the flex plate but still engage with and driving the stator and oil pump parts....

 

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