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Topic: Diff Swap (Read 3480 times) |
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Tekno
Full Member
Tenho Ruohoranta
 
Posts: 599
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Re: Diff Swap
« Reply #40 on: Aug 25th, 2009, 4:05pm » |
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Strange that it (2.0 8V mkIII) has different pinion.. as it has same rear diff ratio as 2.3 frog eye
They wanted to make speedo have more false reading than older model 
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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Tekno
Full Member
Tenho Ruohoranta
Posts: 599
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Re: Diff Swap
« Reply #41 on: Aug 26th, 2009, 1:52pm » |
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Finally done VSS swap 
Before: Error was 11%
After: Error is 5%
I'm very happy now 
BUT, if anyone has spare 21-teeth pinion, would be PERFECT to let me know 
Earth wire was VERY VERY corroded and it snapped just because I did touch it. Replaced it with new one.
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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Tekno
Full Member
Tenho Ruohoranta
Posts: 599
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Re: Diff Swap
« Reply #42 on: Sep 5th, 2009, 8:42am » |
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on Aug 24th, 2009, 10:09pm, Highlander wrote:
Guys we're getting confused here....
All the Scorpios used the A4LDE box not just the 24v apart from the 12v and the diesel.
The 2.0 16v and the 24v VSS ARE different.. if you put a 4.27 diff in your 24v the speedo will read WAY over, around 20mph! (i've tried it)
I dont have the 24v teeth number, will find it out this weekend though.
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Did you find it out?
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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Highlander
Moderator
Expert
13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
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Re: Diff Swap
« Reply #43 on: Sep 5th, 2009, 10:30am » |
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lol no!
I'm just wondering if theres some difference in the actual instrument clusters which would interpret the signal in a different way??
I know if you put a 16v instrument cluster in a 24v the RPM reads about 50% above what it should, i wonder if the speedo is the same..
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on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up !  Too much for an old boy!  |
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Tekno
Full Member
Tenho Ruohoranta
Posts: 599
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Re: Diff Swap
« Reply #44 on: Sep 24th, 2009, 2:52pm » |
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How do you remove the circlip on the tip of drive pinion?
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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tlundkvi
Full Member
Ex. Scorpio 2.9 24V -95
Posts: 909
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Re: Diff Swap
« Reply #45 on: Sep 24th, 2009, 3:36pm » |
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on Sep 24th, 2009, 2:52pm, Tekno wrote:| How do you remove the circlip on the tip of drive pinion? |
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You just push it a bit with a small flat screwdriver. It can be a bit tight but it should not snap.
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Tekno
Full Member
Tenho Ruohoranta
Posts: 599
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Re: Diff Swap
« Reply #46 on: Sep 24th, 2009, 4:49pm » |
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1 circlip broken already... 5 left..
screwdriver+hammer wasn't good idea.
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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tlundkvi
Full Member
Ex. Scorpio 2.9 24V -95
Posts: 909
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Re: Diff Swap
« Reply #47 on: Sep 24th, 2009, 5:52pm » |
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That's a shame, mine came off really easily, I just bent and pushed it a bit from the side and it slipped off. Then again it was soaked in ATF when I did it. The newer style clip slides from the top (it looks like, never saw one), seems better
But you said you had 5...
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Highlander
Moderator
Expert
13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
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Re: Diff Swap
« Reply #48 on: Oct 2nd, 2009, 9:00pm » |
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Hi Guys,
Have worked out a NEW speedo correction method, no need to change the VSS!!
1) Find out how much your speedo is out using satnav.
The one i did this with showed 70mph (speedo reading) and (52mph actual speed showing on satnav) so it was reading 18mph fast.
2) A rolling road or MOT station would be advised for this next bit..
Being a bit rough and ready i just jacked the rear wheels of the car up on two axle stands but BE CAREFUL if you do this..
I had it facing a wall and had the rear axle chained down just in case!
Dont do it with the car pointing downhill towards the local school!!
Remove the dash,
unscrew the clear cover off the instrument cluster
Start the car,
put it in gear,
get the speedo showing 70mph (cruise control is ideal if you have it)
Now the magic bit.....
Pop the speedo needle off and replace it pointing at 52mph!
WHY didnt I think of that before!!
Works a treat!
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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gozz
Senior Member
Been around awhile
Posts: 3475
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Re: Diff Swap
« Reply #49 on: Oct 2nd, 2009, 9:42pm » |
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Stuart.
You didn't think of it before because it's too simple in the modern technological world
GOZZ.
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tlundkvi
Full Member
Ex. Scorpio 2.9 24V -95
Posts: 909
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Re: Diff Swap
« Reply #50 on: Oct 2nd, 2009, 9:52pm » |
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Oh, and I was thinking a resistor between the voltage supply to the needle would do the trick...
Really, internally the scorpio knows it's speed.
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Tekno
Full Member
Tenho Ruohoranta
Posts: 599
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Re: Diff Swap
« Reply #51 on: Oct 2nd, 2009, 11:12pm » |
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that needle trick is good, but not perfect (It corrects speedos static error). Usually speedo has (also/only) error which increases linearly (speedo shows always same _percentage_ above actual speed...). You may get speedo showing correct in, for example 60mph, but then it shows too low at 0-40.. and still too much in 80+mph.
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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Highlander
Moderator
Expert
13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
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Re: Diff Swap
« Reply #52 on: Oct 2nd, 2009, 11:26pm » |
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True BUT...
I used an actual speed of 52mph so it will read 52 and not 57ish as it normally would be with a standard unaltered speedo.
(80 mph actual speed now shows 82 on the speedo)
So although i agree its not perfect its only going to be a couple of mph out (unless you hit 140) which is a lot better than the standard set up.
I reckon an actual speed of 140 would show 149 on the speedo now
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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Tompion
Administrator
1997 2.3 Ultima estate.
Posts: 2918
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Re: Diff Swap
« Reply #53 on: Oct 3rd, 2009, 8:54pm » |
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I suspect a dash reset teaches the instruments where the zero stop is, in which case the next time you disconnect the battery or the needles flick round it may return to the previous setting.
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ABS multiplug wheel sensor pins MK IV or MK 20
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gozz
Senior Member
Been around awhile
Posts: 3475
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Re: Diff Swap
« Reply #54 on: Oct 3rd, 2009, 8:59pm » |
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Tompion.
Are we not looking at a mechanical intervention here,as against an electronic one ?
GOZZ.
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Tompion
Administrator
1997 2.3 Ultima estate.
Posts: 2918
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Re: Diff Swap
« Reply #55 on: Oct 3rd, 2009, 9:26pm » |
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Gozz
In a way that’s the point.
Moving the hand on a Chronometric or rotating magnet type would alter the reading albeit still as inaccurate over the full range of the dial but that won’t necessarily be so for an electro-mechanical device.
You may be right, I’m just guessing – based on the way I know the rotor work.
It’s certainly possible for them to behave the way I mentioned, but I haven’t tested whether they do (something I was going to check out if I ever get round to looking for the airbag problem in my dash).
Dave
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ABS multiplug wheel sensor pins MK IV or MK 20
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Tekno
Full Member
Tenho Ruohoranta
Posts: 599
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Re: Diff Swap
« Reply #56 on: Oct 22nd, 2009, 12:48pm » |
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Do you know where to get spare sirclips for drive pinions?
what is exact size??
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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tlundkvi
Full Member
Ex. Scorpio 2.9 24V -95
Posts: 909
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Re: Diff Swap
« Reply #57 on: Oct 22nd, 2009, 1:22pm » |
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Ford lists them as available for around 1 euro. You need to order for mk3-facelift granny to be sure you get one of the right style (metal VSS version). Otherwise you must change the pinion too. I can go via my local FMD to see if the backordered clip ever came and to see if it looks correct. A 21-teeth pinion was also ordered the same time. I won't need either anymore.
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Tekno
Full Member
Tenho Ruohoranta
Posts: 599
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Re: Diff Swap
« Reply #58 on: Dec 21st, 2009, 9:48pm » |
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Took 7 hours to detach diff!
Patience and lengthy torsion bars are needed.
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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gozz
Senior Member
Been around awhile
Posts: 3475
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Re: Diff Swap
« Reply #59 on: Dec 21st, 2009, 10:13pm » |
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on Oct 22nd, 2009, 1:22pm, tlundkvi wrote:| Ford lists them as available for around 1 euro. You need to order for mk3-facelift granny to be sure you get one of the right style (metal VSS version). Otherwise you must change the pinion too. I can go via my local FMD to see if the backordered clip ever came and to see if it looks correct. A 21-teeth pinion was also ordered the same time. I won't need either anymore. |
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I think he may mean circlips for the output shafts ?
GOZZ.
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