I would like to change the fluids in my tranny and differential. I am going to use Redline MTL for the tranny but what should I use for the diff? How hard is it to change the fluid in the tranny? Should I have my shop do it? The diff. fluid seems pretty straightforward; take off the cover to drain the fluid, get new seal from IPD, and replace, then put new fluid into the bolt hole towards the top of the cover...???
Guidance?
Thanks,
Later,
Kyle KLR142

I've not changed the oil in my 145 yet, but in my 122 and former 1800 I just got length of fuel line and another length of heater hose. Stuff the end of the fuel line in the tranny filler hole and push the other end up into the engine bay. Use a short piece of heater hose to adapt the fuel line to a funnel snout. Pour oil into the funnel while sipping a beer. If you're feeling plucky, wire the funnel to something and drink 2 beers. Anyway, this way you can avoid the pump, which generally means lots of oil running into your armpits. But like I said, I've not done this yet for a 140, so your results may vary.
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Justin 70 1800E, 66 122E, 71 145S
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Tranny drain and filler are on the right side of the car, both with square-headed plugs. Just undo the bottom one and the old fluid comes out. If you have OD, there's a separate drain for that on the bottom -- for a J-type, it's just forward of the solenoid.

To fill it, your life will be much easier of you spring for a pump at your local auto parts place -- they're a coupla bucks, and come in at least two sizes to screw on to whatever size container the Redline comes in. Pump it in the upper hole until it starts to run out. If you have OD, let it settle for an hour or so and then top it up again.

Your idea for draining the rear end is fine. Alternatively, I've also used the same pump with a longer piece of hose to pump out the fluid through the filler. Refill is just like you think it is. I use Castrol Hypoy C in the diff -- read what it says on the Redline container; maybe that's good back there too.

NO NO NO NO!!!

Undo the *top* one first!!!

If you undo the drain plug *first* you run the risk of having
an empty transmission and no way to fill it because the top plug
is chewed up and won't come off for anyhing. On a level of
panic, this one rates pretty good.


As far as filling, either go crazy with hoses and pumps and
stuff, or if you're lucky and have a long shifter car, you
can take the shifter off and dump the oil into the transmission
from the comfort of the driver's seat.

Even if you fill from the top of the transmission it is still
a good idea to take the top drain bolt off so you know when it
is full. A friend of mine filled up his transmission to the
top (didn't take the top bolt off just filled it from the inside
of the car till it was full. That transmission was already
tired and it lasted about 30 more miles...

chris

jack the car up; put some pan under it to catch the old fluid; take out top nut on tranny, then bottom nut and let it drain. After that do I flush it with anything, to clean it out,(I have had a few gear grinding experiences :-(), or is just draining it out and refilling it sufficient? I do have a long shifter and so i guess, I'll leave the top bolt off and refill through the shifter hole. And where can I get the Hypoy C or whatever Castrol oil for the diff? Also, do I need to flush this out also before refilling it?
Thanks,
Kyle KLR142

Also, what is the gap for the valves, and how do I adjust them? Mine are pretty darn noisy whenever I'm on partial/full throttle...

You are correct sir.

If your valves are noisy at partial to full throttle are you sure it's not pinging? Don't know about the PNW, but they use additives in the gas here that require you to retard the timing a bit or it pings all winter.
--
Justin 70 1800E, 66 122E, 71 145S
Read vclassics!