Oil Cooler ports for Manual Vanagon transaxle

[Kdj]

Unfortunately, the transaxle going back in is already assembled. That was a mock up for location in my old core parts. But I agree that would be a very good modification to do. I have drilled the fitting in the rebuilt one. I used your suggestion to pressurize the case through the vent and used a vacuum and grease to minimize the swarth dropping into the fresh rebuild. Worked like a charm! Just finished bolting it up to engine/chassis. Next project is fitting cooler system and tidy up some.Hoping to road test tomorrow

[Sodo]

I’d duplicate that oil channel that feeds the thrust gap between 4th & the mainshaft bearing.

Maybe try to nozzle the fitting to point at it.
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'90 Westy EJ25, NEW oil rings (!) 2Peloquins, 3knobs, SyncroShop pressure-oiled pinion-bearing & GT mainshaft, filtered, cooled gearbox.
'87 Tintop w 47k 53k, '12 SmallCar EJ25, cooled filtered original gearbox
....KTMs, GasGas, SPOT mtb

[Syncrodelic]

I used a Mocal 17-311 pump. It's reversible, self-priming, and waterproof. Also, it's very quiet--I can't hear it running unless I lean down under the van and listen carefully.

I also used this flow thermostat that limits flow to the cooler rad to keep the oil at 145F. I haven't had to use the fan on the rad yet, but my TDI isn't installed yet either.

https://www.improvedracing.com/compact-high-flow-engine-transmission-oil-cooler-thermostat.html

[Kdj]

This is what I am planing on using. Its rated for continues duty cycle. We use them at work and they are more reliable then the tilton ones he had being using.
https://www.jmesales.com/marco-up2-oil-12v-gear-oil-pump-3-8-in-npt-21-8-psi-3-3-ft-self-priming/
Photo of cooler port in 091 selctor housing I'm going with, posted in the 091 transaxle thread.

[onwardtothestars]

During my daily endless samba rabbit-holes, I'm curious if anyone has any updates on gear oil pumps they installed?

-$500 Weddle/TurboWerx unit

-$250 diaphragm pump, sold under many names

- $75-$150 used BMW pump and cooler unit (I'd really like to know if anyone went further then the initial bench testing on these. )

- $75 China oil pump sold under many names and descriptions.

Thank you
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Beetle, Ghia, Vanagon Syncro, and more

[4Gears4Tires]

If you have a good transmission and stay around 70mph, you certainly don't need the oil cooler. The filtering is good to have, sure.

I had my trans rebuilt a few years ago and Rancho installed both a GT Gears 4th gear and a 4th gear oiling plate. The oiling plate half blocks the return oil stream if you use the fill hole. However, I'm fairly certain it's still mostly spilling onto the gear. The oiling plate is curved and oil would hit it and then keep going along until the edge where it would meet the gear.

The Amarine is way too annoying to run constantly. I did this for the first 200 miles of my transmission's break in period and it was rough. The filter did get a lot of trash out of the trans though.
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'87 Syncro Ferric Oxyhydroxide Superleggera Edition
'85 Westy Sciuridae Domus Edition

[Syncrodelic]

Interesting. Yes, mine would be running constantly; as soon as the oil gets warm. That might be too much noise.

Thanks for your response.

[4Gears4Tires]

You can easily hear it on the highway at 70mph. If a more expensive pump is inaudible at highway speeds, then yes. However, If you run it for 30 seconds after finishing a long drive to filter the oil, I guess it doesn't matter too much.

Next time the trans comes down, I'm removing it. If I actually do any towing in the future, then I'll consider reinstalling it. At this point, it's just another failure point that is giving me more anxiety.
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'87 Syncro Ferric Oxyhydroxide Superleggera Edition
'85 Westy Sciuridae Domus Edition

[Syncrodelic]

The faceplate is likely fixable. I was worried it might be loud; that's too bad. Probably not much you can do about that.

What's freakin loud? Can you hear it on the highway? Do you wish you had spent more on a quieter pump?

[4Gears4Tires]

I have one. I think mine seeps oil through the faceplate, been a minute since I've been under there but I think I spotted a leak somewhere. It is pretty freakin loud.
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'87 Syncro Ferric Oxyhydroxide Superleggera Edition
'85 Westy Sciuridae Domus Edition

[Syncrodelic]

Curious if anyone has any feedback on the cheap Amarine pump mentioned above. It goes by other names as well on Amazon and eBay. Plan to get a fully waterproof pump built but wondering about these cheap ones in the meantime.

Great thread BTW.

[luceronator]

[ALIKA T3]

Hello!
I sell the fittings for that in the classifieds
https://www.thesamba.com/vw/classifieds/detail.php?id=1978285
I gotta look how many I have left, I gotta mail another pair tomorrow....

Aloha!
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Silicone Steering Boots and 930 Cv boots for sale in the classifieds.
Syncro transmission upgrade parts in the Classifieds.
Subaru EJ22+UN1 5 speed transmission
http://www.thesamba.com/vw/forum/viewtopic.php?t=416343
Syncro http://www.thesamba.com/vw/forum/viewtopic.php?t=4...num+gadget

[luceronator]

Hey everyone.
Going down this path of adding a transmission cooler to my Van. I've spent quite a bit of time researching the related forums, so I feel like I'm in a good place.
But, I have an 86 manual 2wd, with an EJ25. I only have about 1" between the transaxle drain port and my exhaust. And the drain plug points directly at the exhaust.

Can anybody steer me towards the right piece of hardware, that will do a very tight 90 degree bend out of the trans? Wondering how others have solved this problem.
I haven't seen this specifically addressed, sorry if I missed it.

The other option of course would be to re-route the exhaust, but the magical piece of hardware seems simpler, if I can find it.
I'm using AN8 push on fittings everywhere else so far.

As always, thanks for the help!

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1986 Weekender, EJ25, Peloquin, horrible paint, and all the GW goodies money can buy (from the PO). I call it “Code Brown”, my kids call it “The Funmobile”

[Sodo]

FWIW...
I’ve heard of 3failures of Weddle’s diaphragm pump.
Its made of plastic.
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'90 Westy EJ25, NEW oil rings (!) 2Peloquins, 3knobs, SyncroShop pressure-oiled pinion-bearing & GT mainshaft, filtered, cooled gearbox.
'87 Tintop w 47k 53k, '12 SmallCar EJ25, cooled filtered original gearbox
....KTMs, GasGas, SPOT mtb

[ALIKA T3]

Thanks!

Helical gears are a good thing.

All these ratings for 30 min duty are prolly for warranty purposes , telling you it's shit, maybe not 😃

I looked into using a hydraulic head and coupling it with a heavy duty brushless unit, buts it's just too bulky and expensive in the end.
Isn't it Tilton who claims to have the best pump out there?

I might go this way just bc I don't feel like experimenting, but his pump just looks too much like the Chinese knock offs in the end, I doubt it's all made in USA by Murican workers with Phd's.
_________________
Silicone Steering Boots and 930 Cv boots for sale in the classifieds.
Syncro transmission upgrade parts in the Classifieds.
Subaru EJ22+UN1 5 speed transmission
http://www.thesamba.com/vw/forum/viewtopic.php?t=416343
Syncro http://www.thesamba.com/vw/forum/viewtopic.php?t=4...num+gadget

[Sodo]

These are pics from Turbowerx and Weddle websites (Nov2, 2019).

The pump component looks the same, but the cooling fin unit is extruded on the Turbowerx. The (aluminum) cooling fins is a two-halves unit that just clamps around the steel motor like a clamshell. Weddle's website pic shows a stamped steel mounting base, but the Weddle 9PUMP3 I bought back in 2016 looks exactly like the current Turbowerx (extruded Aluminum)

I have NEVER felt any discernable heat on my Weddle pump motor fins, suggesting the cooling fins are barely necessary in our application.

It would be interesting if the Amarine pump, with no fins, gets hot.
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'90 Westy EJ25, NEW oil rings (!) 2Peloquins, 3knobs, SyncroShop pressure-oiled pinion-bearing & GT mainshaft, filtered, cooled gearbox.
'87 Tintop w 47k 53k, '12 SmallCar EJ25, cooled filtered original gearbox
....KTMs, GasGas, SPOT mtb

[ALIKA T3]

Thanks for the report!

So is the Weddle pump still the same as a TurboWerks these days?
_________________
Silicone Steering Boots and 930 Cv boots for sale in the classifieds.
Syncro transmission upgrade parts in the Classifieds.
Subaru EJ22+UN1 5 speed transmission
http://www.thesamba.com/vw/forum/viewtopic.php?t=416343
Syncro http://www.thesamba.com/vw/forum/viewtopic.php?t=4...num+gadget

[Sodo]

[Syncro Jael]