PV: - Opinions please: Overdrive in a PV544

Army · Jan 25th, 2018, 14:27

G'day folks,

Having seen how much oil is leaking out of the gearbox fitted to my newly bought PV544 I'm planning to remove engine and gearbox to do a bit of a reseal.

I suspect 1960's seals have met modern oil - never mind - to be expected (!)

Anyway I was thinking and dreaming a bit and came across this =>

http://www.vclassics.com/pv_od.html

Now this chap reckons that an M41 (M40 + overdrive) is more "original". I understand, however, that V544s weren't factory fitted with overdrives so I'm guessing originality could be a bit of a wild goose chase.

####

As I've already got a non original B20 under the bonnet - what would you do?

I've got a feeling that the later gearbox options in the poll would also mean a repositioning of the gear stick (that I'm not especially keen on - I want a ye olde worlde looke)

arcturus · Jan 25th, 2018, 14:45

Maybe different propshaft and flange. You would need to check this out

classicswede · Jan 25th, 2018, 14:55

If you want to lower cruise rpm then I would fit a high ratio diff. Saves messing with the body and M41 gearboxes are not so easy or cheap to find now.

Army · Jan 25th, 2018, 15:00

Quote:

Originally Posted by arcturus

Maybe different propshaft and flange. You would need to check this out

Definitely need a different propshaft - the overdrive is bolted on the back

Quote:

Originally Posted by classicswede

If you want to lower cruise rpm then I would fit a high ratio diff. Saves messing with the body and M41 gearboxes are not so easy or cheap to find now.

I do indeed need to check out the differential that is fitted. It could have been changed to suit the replacement engine...

tdz840 · Jan 25th, 2018, 16:40

Quote:

Originally Posted by classicswede

If you want to lower cruise rpm then I would fit a high ratio diff. Saves messing with the body and M41 gearboxes are not so easy or cheap to find now.

Or a Low ratio diff Dai?!
Russ

old fart · Jan 25th, 2018, 18:26

The 544 I have just bought has an M41 fitted, and is brilliant. The tunnel appears to be from an Amazon, modded to fit, but I would have thought that only the back part of the tunnel needs to be widened. The speedo cable has been routed through the tunnel into the cabin, rather than fitting a longer one, a bit strange, but it works!

old fart · Jan 25th, 2018, 18:27

Quote:

Originally Posted by tdz840

Or a Low ratio diff Dai?!
Russ

Lower number=higher ratio.

c1800 · Jan 25th, 2018, 18:30

You may have seen this, some info in adapting M41 in detail.

http://www.vclassics.com/pv_od.html

mocambique-amazone · Jan 25th, 2018, 19:19

Quote:

Originally Posted by c1800

You may have seen this, some info in adapting M41 in detail.

http://www.vclassics.com/pv_od.html

Sorry C1800, did you read #1 of this thread??????

again and again i'm astonished.
regards, Kay

Army · Jan 25th, 2018, 20:32

Quote:

Originally Posted by c1800

You may have seen this, some info in adapting M41 in detail.

http://www.vclassics.com/pv_od.html

Quote:

Originally Posted by mocambique-amazone

Sorry C1800, did you read #1 of this thread??????

again and again i'm astonished.
regards, Kay

Thanks chaps - I think we're all guilty of speed reading once in a while!

I've also found this =>

http://www.tinustechniek.nl/1-div-aandrijving.html

(it is in Dutch though which might not help everyone here)

View Poll Results: Which choice would be you ideal choice
Just leave it as a 4 speed	2	50.00%
Pay mega bucks for a M41 - tunnel modifications needed	1	25.00%
Fit a M46 - tunnel modifications + bell house modifications	1	25.00%
Fit later 5 speed - tunnel modifications + bell house modifications	0	0%
Something else	0	0%
Voters: 4. You may not vote on this poll

Jan 25th, 2018, 14:45	#2
arcturus arcturus Last Online: Today 07:17 Join Date: Mar 2006 Location: Sagres Portugal	Maybe different propshaft and flange. You would need to check this out __________________ life's too short to drink bad wine

Jan 25th, 2018, 14:55	#3
classicswede Trader Volvo in my veins Last Online: Today 21:46 Join Date: Dec 2004 Location: Anglesey	If you want to lower cruise rpm then I would fit a high ratio diff. Saves messing with the body and M41 gearboxes are not so easy or cheap to find now. __________________ http://www.classicswede.org www.classicswede.co.uk

Jan 25th, 2018, 14:27	#1
Army marches on his stomach Last Online: Feb 11th, 2022 03:15 Join Date: Jan 2018 Location: Somewhere in the Netherlands	Opinions please: Overdrive in a PV544 G'day folks, Having seen how much oil is leaking out of the gearbox fitted to my newly bought PV544 I'm planning to remove engine and gearbox to do a bit of a reseal. I suspect 1960's seals have met modern oil - never mind - to be expected (!) Anyway I was thinking and dreaming a bit and came across this => http://www.vclassics.com/pv_od.html Now this chap reckons that an M41 (M40 + overdrive) is more "original". I understand, however, that V544s weren't factory fitted with overdrives so I'm guessing originality could be a bit of a wild goose chase. #### As I've already got a non original B20 under the bonnet - what would you do? I've got a feeling that the later gearbox options in the poll would also mean a repositioning of the gear stick (that I'm not especially keen on - I want a ye olde worlde looke) __________________ 1961 Volvo PV544 the quick and easy in between project(!) 1981 Mercedes 300D <=> 230 diesel to petrol conversion project 1965 Series 2a Station Wagon mega build 1992 Mercedes 190E The car that works! Last edited by Army; Jan 25th, 2018 at 14:29.

Jan 25th, 2018, 18:26	#6
old fart Master Member Last Online: Mar 28th, 2024 14:15 Join Date: Apr 2012 Location: Droitwich	The 544 I have just bought has an M41 fitted, and is brilliant. The tunnel appears to be from an Amazon, modded to fit, but I would have thought that only the back part of the tunnel needs to be widened. The speedo cable has been routed through the tunnel into the cabin, rather than fitting a longer one, a bit strange, but it works!

Jan 25th, 2018, 18:30	#8
c1800 Master Member Last Online: Apr 22nd, 2024 18:48 Join Date: Oct 2013 Location: Alberta	You may have seen this, some info in adapting M41 in detail. http://www.vclassics.com/pv_od.html

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