Slipping automatic trans ~ help (Westfalia 1978)

[pablovent]

Hi guys;

After engine rebuilt work in my Westy 1978 2.0 type4 (3 months) , I'm having problems with the automatic transmission, after run some minutes begin to "slipping"....the same occurs in all speeds, is necessary turn off the engine a few seconds after start run again, but after a few seconds slipping again ...... ATF was removed before rebuilt the engine , after this ATF added again, the rod level has been check several times at normal temps in idle position "N", the marks are good.
When slipping aparently Torque converter without ATF, and the westy does not move.
It is the first time that happens to me....TC and trans was not removed in the rebuilt engine process.

picture only for refernces trans type

In my blue bentley manual appear another auto trans version, exist a manual for my trans??...ATF filter for clean or replace??

thanks and Regards.

[AtlasShrugged]

The pictures you have show a Plain Jane 010 Automatic for a Vanagon.

Be sure and compare carefully with the transmission you have..I thought 1978 Vanagons had a 030 automatic transmission..which look like an 010..but are different. I think the shifter linkage on the 030 exits the automatic transmission on the driver's side..the 010 exits the transmission on the passenger side. Could be wrong..I know the governor cover is different too.

If you have a 010..here is a write up..it says for Jetta..but the transmission diagnostics are the same.

http://www3.sympatico.ca/tchaad/Lost%20Knowledge/at_010.pdf

[pablovent]

[pablovent]

First I will clean the mesh filters atf, be necessary remove the cover to aluminum body ...... then I will replace it with a new ATF DEXRON III.

If I have successfully and for better performance measure the pressure of ATF as explained in the manual....But I would like to know how regulate this screw in the picture "brake band adjusting screw", info not appear in the manual ... somebody knows regulate it?

[danfromsyr]

Take a stroll thru the 010 manual hosted here in the Tech files section under type2 manuals.
http://www.thesamba.com/vw/archives/manuals/1975_010_transmission.php
_________________

[MarkWard]

That adjustment is for the 2nd gear brake band only. In my manual, page 38.12 figure 15 shows how to adjust it. To summarize, loosen the nut and screw in the bolt torque to 10 nm or 87 inch pounds. Loosen and retighten to 5 nm or 43 inch pounds. From this point back off the adjuster exactly 2 and a 1/2 turns and lock it down.

While the manual calls for Dexron, there is some testimonial that you'll get crisper shifts with Type F.

[pablovent]

[AtlasShrugged]

Some on the forum have had good results with Type "F" ATF. I have not used it.

I am fond of the Maxlife ATF from Valvoline. Smells terrible..works great.

[MarkWard]

It is unlikely the second gear brake band would slip as long as you don't back the adjuster out from where it is. You would be adjusting for any wear, but as a rule, once it is set, you don't need to set it again. It is the only external adjustment though.

I have no experience with using Type F either. Based on your symptoms, I don't think a second gear brake band will solve anything. If I had to guess, it sounds like a restriction in the pump intake. It sounds like it is starving for fluid after the engine is running. Restarting the engine, might allow what ever is plugging the intake to drop away.

Dropping the ATF pan will tell you if the filter is getting plugged. Most often they can be reused. It is just a brass fine mesh screen. Short of that, you are looking deeper for the problems. Good luck.

[AtlasShrugged]

Mark is making a good suggestion..Clean the screen and be sure the ATF fluid level is good. (do check the level first, prior to servicing the transmission..so you know in advance)

ATF level is checked with the engine running..in Park..handbrake on..transmission warmed up to operating temp..level ground...The level should be between the MIN and MAX marks...do not over-fill or under-fill the transmission.

[pablovent]

After work approximately one hour, cleaned screen and cover, I also adjust 2nd gear screw. I've been testing it 25 miles without problems, apparently that was the problem, I think 2nd gear activates a little faster too, I am very satisfied with the result ... Published a clean screen and cover photo to serve others with the same problem, curiously when I look for not found in the web, in the end an hour's work was the only problem!!

Agree 3.1 lts aprox new dexron III, in a 3k miles replace again.

Thank you very much to all.

[pablovent]

bad news....today, after 10 miles run in summer (85ºF), trans slipping again.....Turn off key engine a few seconds and work again for a some meters or minutes....Definitly fail when engines hot ...Trans work with dexron III (only 3 lts. new)Rest ATF inside TC....ATF pump wear??...any similar experience?

[AtlasShrugged]

Probably not the pump. They are very tough. The metal clad seals inside the clutches will get worn, hard, brittle and crack in older automatics. When that happens you get pressure loss and the clutch pack will slip.

Just a guess but I have seen it before. Time to refresh the transmission.

Here is a picture of a worn metal clad seal..it worked when the transmission was cold and the ATF was thick..once warmed up..no go.

[pablovent]

ok.......Before my next step I check again the screen for possible ATF pump dirt obstruction.

In my country not exist reparation kit for this trans, can you recommend me auto trans parts store in USA for buy the kit for refresh this trans?


Thanks...

[AtlasShrugged]

http://www.transmissionpartsusa.com/VW_Audi_010_transmission_kits_p/710-000071002.htm

https://www.wittrans.com

Transmission parts USA has a good kit. I like WITtrans as they have available the Raybestos frictions..better than most other frictions sold. The WITtrans website is very clunky and you must navigate it painfully. You may need to call them.

I would get the rebuild kit from transmissionpartusa without the steels and frictions..and get the steels and frictions from WITtrans..or just get the entire order from WITtrans..even though you have a had time finding the rebuild kit on the WIT website. Just call them and see ..I'm sure they can help.

[pablovent]

really appreciated again!!

[pablovent]

The screen is cleaned only does 40 miles ago, now again dirt or maybe internal disc parts.......Screen was not really blocked, aparently the fault is inside the trans!!

[AtlasShrugged]

When the metal clad seals fail the clutch(s) will slip and and throw friction material around..sorry..that looks like what is going on in your transmission

[pablovent]

[AtlasShrugged]

The Usatransmission kit has: This transmission kit contains a gasket kit, metal clad seals, sealing rings, clutch plates & steel plates.
(This kit DOES NOT contain: filters, modulators, bands, sprags, washers, bushings, solenoids, pistons, shift kits, bearings or hard parts)

So it has the bits you need. I would call WIT and see if they have the same kit with Raybestos clutch plates.

The 010 transmission was used on many VW/Audi cars. Internals are pretty much the same with the exception of the Audi Turbo transmissions. The transmission case in different too between some models too.

I would get a new second gear brake band..it is not in the kit..and not very expensive too about $8 to $12. A rebuilt torque converter would be a very good idea too. Don't know if they are available down your way.