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Apr 18, 2010 23:16:00 GMT
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Ok, I'm just flicking through some old autocar mags (august 1954 to be exact) and reading the write up on the rover P4 60, and it says it has a free wheel unit fitted to the gearbox allowing the option of clutchless gear changes when the engine isn't under load I.e when freewheeling.
Anyone know anything about these units?? How they work? Anyone used one??
Oh, and I now want a rover P4 :-D anyone know what to lookout for on one?
Cheers
coop
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Remember the days when sex was safe and motorsport was dangerous. Vintage bling always attracts pussy.  |
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10mpg
Club Retro Rides Member
Posts: 4,253
Club RR Member Number: 204
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Rover p4 freewheel?? Explain??10mpg
@10mpg
Club Retro Rides Member 204
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Apr 18, 2010 23:35:02 GMT
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The freewheel was supposed to be a fuel/transmission saving device, which when engaged basically meant that if the road speed exceeded the engine speed it 'freewheeled' effectively cutting out the drive and allowing the car to run with the ..
it fitted as far as I remember fitted only to the earlier cars, I've been in one but never driven one with one fitted...
early cars had hydro mechanical brakes, again no experience of these but i'm told they were cr4p unless adjusted spot on..
Most of my time spent with them has been with the latter 100's 90's and 110's you either get a 4 pot from the lad rover stable or rovers own 6 pot inlet over exhaust lump which is lovely smooth and completely delicious
they all rot well but are made of awesome quality steel so last very well if looked after and are on a stupidly strong separate chassis so fundamentally they are super strong..
All but the very last 110's have ally doors boot and bonnet so no rust problems there but they still can corrode and collect dents like you wouldn't believe...
Just got a 100 in to restore for a customer, so feeling right at home now...
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Last Edit: Apr 18, 2010 23:37:19 GMT by 10mpg
The Internet, like all tools, if used improperly, can make a complete bo**cks of even the simplest jobs...
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Apr 18, 2010 23:56:57 GMT
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Thank you sir.
So what your saying is, go for a 6 pot, check for rot but don't worry about a bit of surface rust as steel is thick and slow rusting, expect some dents on ally pannels an all but mint cars and do a disc converson?
May have to go look on evilbay now, what's a good guide price for a half decent, useble but not mint one?
Just been thinking, I've never had a British car!
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Remember the days when sex was safe and motorsport was dangerous. Vintage bling always attracts pussy. |
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british cars are the best  |
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10mpg
Club Retro Rides Member
Posts: 4,253
Club RR Member Number: 204
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Rover p4 freewheel?? Explain??10mpg
@10mpg
Club Retro Rides Member 204
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all the later ones have discs on the front anyway, you're unlikely to come across an early car to be honest the 75's and the cyclops are hugely collectable..
I love the 6 pots and i'd only run a 6 out of choice, but don't discount the 4 pot land rover powered ones, sure they are coarse compared to the 6 but they are super cheap to run (except mpg obv) and they do lug along alright..
Prices are very variable, but 3-4k should get you a nice slightly scruffy round the edges but mechanically spot on car, rough runners £1500-2k projects in the £100's and minters up to 10k and beyond..
I'd aviod a 105R with the roverdrive automatic as they are a bit problematic and spares are super rare, mind you I've only ever seen one for sale so again your unlikely to find one, crazy 2 speed automatic 'box with automatically engaging overdrive on both gears, giving it the choice (when it felt like it) of 4 gears..
also the front trunnions must be oiled not greased or they jolly pain in the backside up something chronic, and are horrid to sort, check they are not sloppy or seized solid..
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Last Edit: Apr 19, 2010 8:54:17 GMT by 10mpg
The Internet, like all tools, if used improperly, can make a complete bo**cks of even the simplest jobs...
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I had a Saab 95 (V4 version) that had freewheel and loved it.
You could change from 4th to 1st at 70mph without the clutch and nothing happened until the car slowed down enough for the gear to match engine speed.
Great in traffic.
On the Saab the freewheel was a legacy from the earlier 2 stroke engine where it could seize on long downhills due to no lubricating oil in fuel being spashed around.
Paul H
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i thought P4 panels were alloy?
or is that just some of the panels?
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Someone just shot the elephant in the room. |
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kevfromwales
Posted a lot
the conrod's REALLY out the block now!
Posts: 3,909
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just while we're on P4's - does anybody know of any interesting engine swaps for the 4 cylinder ones??
also, apart from the rot, and the front suspension - anything other to look out for
(we're not talking about a restoration here!!)
- kev
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Almost on the road: b11 sunny breadvan, e36 tds, 325i skidcar,
nearly there: ford f250 tathauler, suzuki alto, u11 bluey
not for a while: ford pop, 32 rails,
not in this lifetime: ruby, '29 hillman
''unfortanatly I'm quite old and scruffy and in need of some loving. my drive shaft needs a new boot....''
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Davenger
Club Retro Rides Member
It's only metal
Posts: 7,272
Club RR Member Number: 140
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Rover p4 freewheel?? Explain??Davenger
@dminifreak
Club Retro Rides Member 140
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Apr 19, 2010 10:11:09 GMT
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Well, Jools Hollands JET 1 replica has a Jag lump in it.
No idea how difficult the swap would be though
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kevfromwales
Posted a lot
the conrod's REALLY out the block now!
Posts: 3,909
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Apr 19, 2010 10:20:42 GMT
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was thinking more along the lines of bolting directly to the stock rover box? - possibly a shared bellhousing pattern with some later rover lump?
- kfw
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Almost on the road: b11 sunny breadvan, e36 tds, 325i skidcar,
nearly there: ford f250 tathauler, suzuki alto, u11 bluey
not for a while: ford pop, 32 rails,
not in this lifetime: ruby, '29 hillman
''unfortanatly I'm quite old and scruffy and in need of some loving. my drive shaft needs a new boot....''
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Apr 19, 2010 10:31:27 GMT
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^^ Kev, cos it's a land-rover 2 1/4 engine, maybe the adapter plates you can get to fit other engines into a landy might work?
(ps, looks like we may have the same plan.... lolz)
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To get a standard A40 this low, you'd have to dig a hole to put it in |
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Apr 19, 2010 10:34:40 GMT
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^^ Yes, Perkins Prima ftw! ;D
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1989 Peugeot 205. You know, the one that was parked in a ditch on the campsite at RRG'17... the glass is always full. but the ratio of air to water may vary. |
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miaspa
Part of things
Posts: 829
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Apr 19, 2010 10:35:58 GMT
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Not sure on what engines swap in but would keep the six pot used to run a 100 as a daily if you can live with 16mpg they are sweet engines. Chops the coils up front, the two I owned had saggy bums so no lowering to the rear suspension needed.
I took the head off a rotten 105s and ran it with twin SU's but mpg really suffered but would happily cruise all day long exceeding motorway speeds.
Happy memomories going out to clubs and gigs easily sitting six in comfort.
Doors, bonnet and boot lid are alloy on all up to 100, 110's and 90's are all steel.
Steering gets really heavy with Radials fitted, parking on a hot day was a real workout.
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Found my flashing Pao again.
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rob0r
East of England
Posts: 2,743
Club RR Member Number: 104
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Rover p4 freewheel?? Explain??rob0r
@rob0r
Club Retro Rides Member 104
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Apr 19, 2010 11:59:04 GMT
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P4s are a real option for me (having a few sitting around the place), must take a look at them one day... Incase this thread needs photos here's one of my dad's  |
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E30 320i 3.5 - E23 730 - E3 3.0si - E21 316 M42 - E32 750i
ETC
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Apr 19, 2010 15:51:16 GMT
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The only other cars I know with freewheels is the saab 96/95. Is a bit surreal driving and not have any braking effect from the engine.
But you can change down and up without using the clutch. I think anyway, I ripped my engine and gearbox out to fit something bigger.
EDIT: I am not exactly sure how it worked, there was a wheel in the gearbox which would freewheel one way and lock instantly the other.
It was like a very sophisticated bike hub.
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Last Edit: Apr 19, 2010 15:52:46 GMT by trogdor
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Sept 14, 2010 18:42:37 GMT
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just picked up a p4 (75) and now i know what the free wheel bit is lol........ thinking of changing engine too, not sure about keeping the original box though !!
cant seem to find anything about sticking an v8 into one though.......banger tend to go ford v6
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loving the dub
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Sept 14, 2010 18:43:38 GMT
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banger boys i mean't lol
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loving the dub
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Steve
Posted a lot
Making progress in small, easy to handle chunks of awesome
Posts: 2,027
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Sept 14, 2010 18:53:33 GMT
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In theory, if the gearbox shares the same bellhousing pattern as the Land-Rovers, then you have the option of an adaptor plate for the Rover V8 to bolt on ;D or if your one of those special peeps that likes to be completely different.....a 200TDi out of a Defender would fit  |
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Sept 14, 2010 19:06:43 GMT
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Freewheel is odd at first, and downright scary if you're in something with all-drum brakes and no engine braking! I've driven two-stroke Saabs and Wartburgs with Freewheel - as has been mentioned, it was to stop the engine seizing as two-strokes get no oil feed with the throttle shut.
Rover P4s are magnificent. There's one that regularly turns up at Bromley Pageant with a Rover V8 in it.
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1986 Citroen 2CV Dolly Other things. Check out my Blog for the latest! www.hubnut.org |
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