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Anthony
Dodge Dakota
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10/30/2002
21:24:22
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 Subject: Leaky NV3500 after switched to Synthetic
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Hey gang,
After switching the tranny fluid to synthetic about 3 months ago. I've notice that the tranny is dripping fluid where it mounts to the engine. It only drips once in a blue moon, one or two drips here and there. But today it looks like it driped a good 10-15 times enough to form a very small puddel. This can't be normal?? Has anyone else experienced any leakage from their nv3500-5spd???
Thanks in advance,
Anthony
www.geocities.com/dak2nv/
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CW
GenIII
 
10/30/2002
22:03:20
|  RE: Leaky NV3500 after switched to Synthetic
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Message:
Kinda sounds like the input shaft seal is toast.
4.7 HO, CW style
2001 4.7 5sp 3.92 LSD
Ported 68mm TB, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" Z-tube, Roadmaster active suspention, Removed Third cat, Electric fan Convertion, HO cams, Robert shaw 180 therm, HO intake manifold.
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sandman
Dodge Dakota
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10/30/2002
22:49:06
|  RE: Leaky NV3500 after switched to Synthetic
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Synthetic's will not cause seal damage at all. They have not done that since the early 1970's. What can happen is the convetional oil can leave waxy sludge like build up on the seal causeing it to dry rot. Once you but a synthetic in that has no wax in it it will disolve the soft wax pluging all the dry roted cracks in the seal. Then it starts to leak. So the leak was not caused buy the synthetic but rather by the crappy non-synthetic that was in it before. Their is also the possability that it had nothing to do with the fluid change at all. It could have been defective and failing already and it just finaly went after fluid change. Sometimes we try to make cause and effect relationships were one does not exsist. You could try Lucas tranny stop leak in it. It has seal swelling chemical in it. It will make the seal soften up and swell. If that does not do it then you will need to drop the trany and change out the seal.
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Dr. D
Dodge Dakota
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10/30/2002
23:29:43
| RE: Leaky NV3500 after switched to Synthetic
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Message:
Synthetic oil is what is recommended by the manufacturer so that can't be your problem.
Dr. D
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Art
Dodge Dakota
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10/30/2002
23:58:15
| RE: Leaky NV3500 after switched to Synthetic
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When I changed my oil in the NV3500,I noticed there was slight seapage between the tailshaft housing and main trans casing and also from the transfer case halfs and all this was before I switched to SYN oils,I dont see mine getting any worse after the SYN oils either,so I doubt the change caused your leak,are you sure its the trans fluid? Could be the rear main from the engine leaking.
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Chris
Dodge Dakota
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10/31/2002
08:57:06
| RE: Leaky NV3500 after switched to Synthetic
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It could also be the clutch slave cylinder leaking as well. Just a thought.
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CW
GenIII
10/31/2002
09:16:04
| RE: Leaky NV3500 after switched to Synthetic
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Message:
Sandman: So in sort it revealed the leak?;)
4.7 HO, CW style
2001 4.7 5sp 3.92 LSD
Ported 68mm TB, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" Z-tube, Roadmaster active suspention, Removed Third cat, Electric fan Convertion, HO cams, Robert shaw 180 therm, HO intake manifold.
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Anthony
Dodge Dakota
JOIN HERE
10/31/2002
13:46:15
| RE: Leaky NV3500 after switched to Synthetic
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Here's a pic where the leak is coming from, I think it's leaking higher up and dripping down the tranny. Last night their was no drips on the cardboard I placed under the truck, and so far today I didn't see anymore. It's very weird!!
Anthony
www.geocities.com/dak2nv/
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3605spd
Dodge Dakota
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10/31/2002
14:57:03
| RE: Leaky NV3500 after switched to Synthetic
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Message:
Did the Sythetic quite down the nv3500 any?
Brad
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Art
Dodge Dakota
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10/31/2002
15:47:23
| RE: Leaky NV3500 after switched to Synthetic
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Check your valve covers Anthony,hard to tell if its from the engine or trans as they are both pretty much the same oil
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rtdkota
R/T
10/31/2002
16:34:07
| RE: Leaky NV3500 after switched to Synthetic
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A leaky Distributor O-ring did that for me-- check that too-- Clean EVERYTHING real good-- then keep checking it-- It's probably engine related (as listed above).
Sam
RTDKOTA
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Art
Dodge Dakota
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10/31/2002
18:03:38
| RE: Leaky NV3500 after switched to Synthetic
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His engine is the 4.7,no distributor but ya I know what your saying I`ve had a leak before from there aswell,or maybe even the intake
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Anthony
Dodge Dakota
JOIN HERE
11/01/2002
17:10:07
| RE: Leaky NV3500 after switched to Synthetic
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Message:
It been 2 days since it last dripped and counting, but I must know what it is. I just went under the truck to get a better look. The leak is coming from between the engine and tranny where the flywheel is. I opened the fill cap on the nv-3500, to see if it's still full. Fluid was streaming out of the hole, plus the tranny fluid was so clean it was like I just put it in.
Synthetic rules!!! it's still clean after 6,000km!!! So that rules out the tranny leaking.
So I guess this is an engine oil leak. What I dont get the drips look like dirty oil as shown in pic, I changed my oil last weekend and the oil is clean!?!?! I got my eye on it from now on!!!
Anthony
www.geocities.com/dak2nv/
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sandman
Dodge Dakota
JOIN HERE
11/01/2002
22:38:58
| RE: Leaky NV3500 after switched to Synthetic
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Message:
I would put some dye in the crank case and get the black light out. That would answere it real quick like. The oil abears to have combustion by products in it. I would guess that either your valve covers are leaking or the rear main is!!! You can smell the oil and if it has a gasoline odor you know it came from the crankcase. Does the NV3500 have an inspecton plate??? If it does remove it and take a peak. I would also completely was the engine and trany down with engine cleaner before adding dye. It is always easier to find a leak with a clean engine!
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foleyr
GenIII
11/18/2002
12:28:08
| RE: Leaky NV3500 after switched to Synthetic
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Message:
Anthony,
did this ever go away .. do you still have the problem .. i am up to 120,000 kms .. tranny seems to be =getting a little louder .. thinking about doing the change ..
I am thinking about doing the tranny fluid change .?
Let me know ..
THanks
Ryan
foleyr .. ..........
“Wise men talk because they have something to say, Fools talk because they have to say something”
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Anthony
Dodge Dakota
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11/18/2002
18:36:07
| RE: Leaky NV3500 after switched to Synthetic
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Message:
Hey Ryan,
After closer inspection it's not the tranny, the main oil seal on the engine is shot. What a piss off, now the dealer is going to have to rip the bottom of the motor apart plus remove the tranny. Just to fix it.
I recommend switching the tranny fluid to synthetic. Big difference, you'll see!!!
Anthony
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foleyr
GenIII
11/19/2002
10:17:43
| RE: Leaky NV3500 after switched to Synthetic
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Message:
Anthony .. THanks
i think if i get enough time i am going to do the gear oil this weekend .. and mabey at the same time i will do the tranny as well ..
Last weekend i went full synctheic .. for the engine .. quietet it down better starting ..
RYan
foleyr .. ..........
“Wise men talk because they have something to say, Fools talk because they have to say something”
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Chris
Dodge Dakota
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11/19/2002
10:32:04
| RE: Leaky NV3500 after switched to Synthetic
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Message:
the oil seal on the 4.7 went? how many miles (km) you have on it.. I have 76k miles and so far no leaks for me...
Chris
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Anthony
Dodge Dakota
JOIN HERE
11/19/2002
20:51:00
| RE: Leaky NV3500 after switched to Synthetic
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Message:
Hey Chris,
I have 36,500km/19,000miles on my Dakota.
Anthony
www.geocities.com/dak2nv/
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