Bytte til nyere girkasse M40

[Torbo2]

For noen kan kanskje dette være interessant, da de gamle 4-trinns er vanskleige å få tak i?
http://volvo1800pictures.com/vm/4/4_htm ... M%2040.htm

[445]

Den var meget opplysende!
Kan det finnes en tilsvarende bruksanvisning for skifte fra H6 til M4?
For Duetten er det bare girkassens feste som må modifiseres, men det hadde vært interessant å se hvordan dette var tenkt gjort.

[lukeball]

Here is also a interesting site about installing a M40 in place of the M4. http://www.sure-vent.com/M40Trans.htm

[Torbo2]

Goooood information! Thanks!
We want more contributions if you have and can provide?
I / We aim to make the best of everything here on the forum.
And what we have received from you so far is worth gold!
So please hang on the forum and please come over here and complement with knowledge.
You may have to pay your own travel, but it is certainly worth it for both you and us.

[445]

Bortsett fra at M40 tar mer plass, er det noen tekniske forskjeller på M4 og M40?

[Torbo2]

Ifølge vår nye venn fra over there, må man borre om innfestingen, men det står det ikke noen om i den svenske ombyggingsmalen. Men det er jo ikke noen problem å borre fire hull i verste fall. Man får god styring fra pakkboksen som sitter over inngående akling til girkassen. Her kan man jo lage en mal av aluminium, det ville jeg ha gjort. Gidder ikke borre 1 mm feil... +/- 0,1 er nok for meg her..
Hovedstyringen mellom gir- og kløstsjhus skjer jo ytterkant av den store hylsa over inngående aksling. Den styrer jo også kløsjlageret, derved blir det hele på linje. Den må være og blir nøyaktig selv om festehullene (umbrakoboltene) sitter litt romslig i kassa.

[445]

Bortsett fra at M40 tar mer plass, er det noen tekniske forskjeller på M4 og M40?

Tenkte mest på om utvekslingen var forskjellig. Er M40 en overdrive-kasse?

[Torbo2]

M40 har nok bare direkte forbindelse tvers igjennom på 4. Så vi bør vel tenke på hva vi kan gjøre bakover på disse bilene....
Et 2012-prosjekt?

Det å tilpasse en femtrinns kasse fra en annen bil, tror jeg er et altfor stort prosjekt, og det kan blir ganske trangt undner og innimellom der.

[lukeball]

The M41 is the overdrive transmission. The M40 has the same ratios as the M41, but with no overdrive. For overdrives, there are two types: D & J. You also have the choice of the M31, which is a three speed with overdrive. The D type is shorter, but the M type is longer and stronger. The M type is also wider, so it may not work in the drive tunnel on earlier models.

I haven't done the swap yet, but when you decide to do it, weld the holes shut on the M40 and even them out. Then make a template off of the M4 and use it on the M40. Also, you could try and find a M41 off of another PV and take the drive shaft with it. These transmissions will bolt up to the B18 and B20 without any problems, but you need to modify them when using them with the B16. The shaft needs to be cut, bellhousing slotted, and the case drilled.

I would do this while the engine is out of the car.

[Torbo2]

The M41 is the overdrive transmission. The M40 has the same ratios as the M41, but with no overdrive. For overdrives, there are two types: D & J. You also have the choice of the M31, which is a three speed with overdrive. The D type is shorter, but the M type is longer and stronger. The M type is also wider, so it may not work in the drive tunnel on earlier models.

I haven't done the swap yet, but when you decide to do it, weld the holes shut on the M40 and even them out. Then make a template off of the M4 and use it on the M40. Also, you could try and find a M41 off of another PV and take the drive shaft with it. These transmissions will bolt up to the B18 and B20 without any problems, but you need to modify them when using them with the B16. The shaft needs to be cut, bellhousing slotted, and the case drilled.

I would do this while the engine is out of the car.

alternative to cutting the clutch shaft is to drill larger holes in the crank shaft, as shown on the first link on the top of the thread.
So what is the best choice is the ikek easy to say, but both works ...