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Swapping out AVX to ACN
by
92EcoDiesel Jetta
on 25 Apr, 2012 06:20
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I picked up an ACN from an 85 Jetta 1.8 8V with supposedly 140K miles on it to put into my 92 Ecodiesel (currently with an AVX).
I have the Bently manual and borrowed an engine support for the job.
Any tips and tricks you want to offer? This includes ACN prep such as what i should check or change before installation and the actual transmission swap.
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#1
by
shwak23
on 25 Apr, 2012 06:48
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Why are you dumping the most sought after MKII tranny in favor of the ACN?
Sent from my DROID X2
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#2
by
theman53
on 25 Apr, 2012 06:52
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Why are you dumping the most sought after MKII tranny in favor of the ACN?
Sent from my DROID X2
You have it backwards. The AVX is only sought after(as far as I know)by gas guys that autocross and want the low R&P
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#3
by
R.O.R-2.0
on 25 Apr, 2012 11:09
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yup..
AVX is great for autoX and drag..
LOW gears..
ACN is the exact opposite of the AVX..
only difference, i already noted in another thread.. the reverse light switch is different, and you will need to make an adapter.
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#4
by
maxfax
on 25 Apr, 2012 20:50
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Replace the seal for the input shaft, and the seal & bushing for the clutch rod, you're non oily clutch disc will thank you... Take a good look at that engine rear seal while you're there.. Are you planning on a new clutch at all?
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#5
by
92EcoDiesel Jetta
on 26 Apr, 2012 15:08
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Replace the seal for the input shaft, and the seal & bushing for the clutch rod, you're non oily clutch disc will thank you... Take a good look at that engine rear seal while you're there.. Are you planning on a new clutch at all?
I am debating whether to replace any seals that are expensive or difficult to replace since I have no idea if the transmission will be problem free or not. Clutch will be inspected first before deciding whether it should be replaced. It currently shifts fine and does not slip.
I was able to engage all gears + reverse and they all spin with no noise or notchyness. I drained the oil, it was a bit on the dark side but not milky and the drain plug had no debris in its cavity. All bearings felt tight with no play.
I think I am going to over-fill it with clean oil and see if there are any leaky seals and replace only those that leaks, then install and run it and see how it goes.
The speedo cable was cut. Do I need to transfer the red speedo gear to my good cable for an accurate speedo?
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#6
by
CrazyAndy
on 28 Apr, 2012 10:50
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Go ahead and to the input seal and clutch rod seals and bushings. The time for that is NOW, and you won't be able to replace them unless you rip out the trans again.
And transfer the red gear to your current speedometer cable so the gauge reads right
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#7
by
92EcoDiesel Jetta
on 28 Apr, 2012 19:50
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Go ahead and to the input seal and clutch rod seals and bushings. The time for that is NOW, and you won't be able to replace them unless you rip out the trans again.
And transfer the red gear to your current speedometer cable so the gauge reads right
Filled the tranny with oil and found the clutch rod seal and one flange leaking so I will go and change all the seals.
How does the plastic speedo gear come off the cable? I don't want to break it.
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#8
by
R.O.R-2.0
on 28 Apr, 2012 19:52
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Go ahead and to the input seal and clutch rod seals and bushings. The time for that is NOW, and you won't be able to replace them unless you rip out the trans again.
And transfer the red gear to your current speedometer cable so the gauge reads right
Filled the tranny with oil and found the clutch rod seal and one flange leaking so I will go and change all the seals.
How does the plastic speedo gear come off the cable? I don't want to break it.
it pulls off..
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#9
by
92EcoDiesel Jetta
on 28 Apr, 2012 20:10
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Go ahead and to the input seal and clutch rod seals and bushings. The time for that is NOW, and you won't be able to replace them unless you rip out the trans again.
And transfer the red gear to your current speedometer cable so the gauge reads right
Filled the tranny with oil and found the clutch rod seal and one flange leaking so I will go and change all the seals.
How does the plastic speedo gear come off the cable? I don't want to break it.
it pulls off..
I did try pulling on it but it didn't come off.
Do I just pull harder? It's not going to break?
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#10
by
CrazyAndy
on 30 Apr, 2012 09:34
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Go ahead and to the input seal and clutch rod seals and bushings. The time for that is NOW, and you won't be able to replace them unless you rip out the trans again.
And transfer the red gear to your current speedometer cable so the gauge reads right
Filled the tranny with oil and found the clutch rod seal and one flange leaking so I will go and change all the seals.
How does the plastic speedo gear come off the cable? I don't want to break it.
it pulls off..
I did try pulling on it but it didn't come off.
Do I just pull harder? It's not going to break?
if it's giving you some trouble, then try putting it cable-end through some pliars and pulling up lightly. If that doesn't work then put the gear on a vise with the cable going loose through the vise jaw sand pull down on the cable.
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#11
by
R.O.R-2.0
on 30 Apr, 2012 09:44
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pull it pretty hard, and twist lightly..
it should pop off, make sure there is a small metal C clip on the end of the cable once you get the gear off.. make sure it didnt stay inside the gear..
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#12
by
92EcoDiesel Jetta
on 30 Apr, 2012 12:18
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What is the mechanism that is holding it together? Anyone have a pic of the cable and speedo gear apart? I was pulling pretty hard and it didn't budge.
Don't want to break anything.
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#13
by
R.O.R-2.0
on 30 Apr, 2012 16:54
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What is the mechanism that is holding it together? Anyone have a pic of the cable and speedo gear apart? I was pulling pretty hard and it didn't budge. Don't want to break anything.
PULL HARD..
its not just some slip fit connection.
its a spring C clip holding the gear to the cable housing.
there is NOTHING holding it to the actual cable.
if its not coming off, you aint pulling hard enough.
they can be pretty stubborn sometimes..