Manual Transaxle oil cooler: FILTERING

[Sodo]

[Syncro Jael]

[Pcforno]

No worries sodo - not trying to call you out, just wondering if you had any Inside info that contradicted magnom's experiments as I did a lot of reading before going with the magnom thing. Anyhow agreed, more filtering the better! And I like the way gears thinks!!
I'm getting ready to chip my 1.8t so I'm counting on gears to come through with some more innovations! Perhaps bring back the casting for all aluminum cases and barrel drilled main shafts?
So far I've got 16,000 miles on my rebuilt unit with cooling and filtering and plenty of 200 ft/lb miles with almost no particles on my 8 micron filter and magnom. Here's hoping

[gears]

I think that Moroso filter is for automatic transmissions with thinner fluid. Probably too restrictive for good flow / delivery to all the various oiling points.

Sneak preview sketch of gun-drilled mainshaft. Two prototypes might be ready in a couple weeks.

The prototype billet intermediate housing with bonus features may also be ready in a couple weeks.
_________________
aka Pablo, Geary
9.36 @ 146 in '86 Hot & Sticky
'90 Syncro Westy SVX
'87 Syncro GL 2.5
https://guardtransaxle.com

[Pcforno]

Gears you rock!!

[Steve M.]

Just some photos of the Drain plug adapters and the size of AN fittings vs a Banjo Fitting when using the 2.1 WBX engine and exhaust.

This is a fitting I got from Sodo I am using for the Fill Port, but it measures the same length as other adapters I had for the AN8 JIC Flare. These are EATON fittings. 90° going into AN8 "T". Obviously not enough room!

With the exhaust installed you cannot install the fittings. Previous picture I removed the exhaust to mount the fittings.
Another problem is that any version of the 90° fitting cannot be installed because you have to rotate it and it hits the rib on the Bellhousing above it.

This is the the Banjo Fitting installed on Alika's adapter. This Banjo flare size is an AN6 (all I could find locally.) The Banjo from Pegasus that is referenced by Alika is a AN8 which will give a better flow rate being a size larger.

A side view showing the AN6 Banjo and the AN6 size "T" fitting. I am using a "T" fitting so I still have a drain port.

Alika's adapter and the Banjo fittings are the best way to go if you have the 2.1 WBX.

(These pics are just for the unenlightened who might be thinking about doing this mod. You enlightened guys already know all this stuff.)
_________________
This free advice is worth exactly what you paid for it.

There are seven days in a week. Someday is not one of them.

[Sodo]

Steve I though you were using that fitting on the fill port.
_________________


'90 Westy EJ25, 2Peloquins, 3knobs, pressure-oiled GT mainshaft, filtered, cooled gearbox
'87 Tintop w 47k 53k, '12 SmallCar EJ25, cooled filtered gearbox
....KTMs, GasGas, SPOT mtb

[Steve M.]

[Steve M.]

Here is a link to a possible sight gauge that could possibly be used on that rectangular oil tank I referenced in previous post. That would depend on the length between the fittings, they make different lengths.

sight gauge-Lovejoy
https://www.ebay.com/p/Lovejoy-84527101703-Hydraul...0005.m1851

There are many variations of this vertical type from different mfg's where the sight tube is enclosed and protected inside a housing.

However, I would prefer this one installed on the side of the gearbox itself if there was a location available at the height of the oil on the gearbox when full of oil.

Round window plug. The main advantage is if it leaks it is only going to leak down to the bottom of the window. Whereas on vertical sight gauges you would loose all the oil.
http://www.ebay.com/itm/3-8-NPT-Male-Brass-Sight-G...mp;vxp=mtr
_________________
This free advice is worth exactly what you paid for it.

There are seven days in a week. Someday is not one of them.

[Syncro Jael]

[gears]

To be quite honest, I'm just a backyard mechanic applying solutions that are obvious to me. I'm relying on pros for manufacturing and engineering, which includes what you guys are arriving at in threads like this ..
_________________
aka Pablo, Geary
9.36 @ 146 in '86 Hot & Sticky
'90 Syncro Westy SVX
'87 Syncro GL 2.5
https://guardtransaxle.com

[Sodo]

[flomulgator]

Gears if you recall from last weekend we were discussing a potential issue with the fin cooler I've been using was that all of the dual pass coolers use 1/4" passages (~AN6), which is fine for ATF but I'm worried is too restrictive for thicker gear oil. Well lo and behold, I found that if you go single pass, the passage and fitting size increase to 3/8" (~AN8). My new plan is to replace my existing finned cooler and 1/4" hose with two of these connected by a U-bend at the front end, all still strapped to my driveshaft bar:

https://smile.amazon.com/gp/product/B00S75F8U2/ref...OMP4BEHXVH

The whole system will be ~AN8 or 3/8" throughout the entire circuit now.
And folks, after having Gears walk me through some of his design ideas, I can tell you the billet intermediate housing will be a must-have on any 094 rebuild.
_________________
She's built like a steakhouse, but she handles like a bistro!

[Sodo]

That "Assault Racing Products" cooler is welded shut. Which is good for reliability, but difficult to stuff with magnets..... if'n someone was so inclined....seeing as the subject of this thread is filtering. Also would be difficult to clean it (someday).

I'm quite curious what's inside of one that has bolted ends. It seems to be a good size for under the van, or inside either of the rear fresh air intake pillars. Will a 15" get around the corner to go vertical in the fresh air intake?
_________________


'90 Westy EJ25, 2Peloquins, 3knobs, pressure-oiled GT mainshaft, filtered, cooled gearbox
'87 Tintop w 47k 53k, '12 SmallCar EJ25, cooled filtered gearbox
....KTMs, GasGas, SPOT mtb

[flomulgator]

Ha! between stuffing coolers in the air intake and this picture I see inspiration for a future cooling circuit:

I'm also going to change up my filtering. My in-fitting Setrab 250 screen did a good job of grabbing a couple large particles before the pump, but I want to do more after the pump. I'm gathering ideas from this thread, the $12 10 micron drop canister looks attractive if I can figure out a way to mount it, and then follow it with this 3/8" magnet thing:
https://smile.amazon.com/gp/product/B072PQ2XKD/ref...QJY9IZUN8K

My long-sought goal is to have an effective system with a final build cost of < $500.
_________________
She's built like a steakhouse, but she handles like a bistro!

[ALIKA T3]

Flomulgator, the magnet filter is for automatic transmission or hydraulic fluid like power steering, it might be too restrictive....

For the single pass cooler, you can always mount to in series straight shot or back to back with lebows in one end to do a connecting loop

Steve M, good to see you're getting there, it is looking good!!
Keep an eye out for leaks, fingers crossed!


Paul, are the shafts drilled twice perpendicularly at 180° ?

Aloha!

Alika
_________________
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

[flomulgator]

Folks in this thread are advocating filtering to incredibly small particle sizes, without very large filter areas wouldn't that also be excessively restrictive?
_________________
She's built like a steakhouse, but she handles like a bistro!

[Sodo]

[ejimmi]

[Pcforno]

For those concerned about flow rates - o thought I’d post mine.
I have this filter (8micron) https://www.pegasusautoracing.com/productdetails.asp?RecID=11514
With about 4 quick disconnects in the system and a magnom mini filter, setrab radiator, powered by a weddle (turbowerks) pump.
I get pretty much exactly 2 gal/min flow rate