Hi!
I have a 69' Series 1 with automatic transmission and its fluid had never been changed.
After buying 9 litres of the proper fluid I drained the old fluid but only half of it came out.
Apparently the remaining old fluid is in the torque converter. Is it possible to flush it all out without resorting to any external pump? Or should I take it to a shop?

Thanks in advance.

 

This situation is normal.

Some of the earlier cars had a drain plug in the converter. Remove the plastic screens in the converter cover, and SLOWLY, by hand, wind the engine over in a clockwise direction, and look for that plug.

You may be lucky, you may not.

If no, then I would simply refill with the quantity that drained, drive it a few kms, drain it again, refill and so on, until what comes out is about the same colour as what is going in.

At the age of that trans, and the lack of service, I would NOT risk a professional flush, as sometimes the "shock" of the new fluid kills the transmission.

Introducing new fluid slowly etc is always the safest way in my opinion.

 

Thank you very much! Will look into it.

 

Yeah, with an "experienced" transmission, I am with Grant. Why they work on dirty old brown oil and not with fresh red oil is an oddity. Leaks ?


There is way to DIY flush. It involves the lines to the cooling coil in the radiator. Open the in line, Add a hose to a can or big pan. Run the engine, catch the oil. Add new fluid. Keep enough in the transmission to avoid an over heat or lube failure, repeat the fluid is a nice clean red.


Same caveat, the seals may not "like" the fresh red oil and leak.


Carl