Confirm Fluids .......

[George Zeck]

Hi All -

About to do some PM and wanted to confirm before I became Dumb Current Owner (aka DCO).

Oil: 20w50 less than 10k on rebuild and 99% summer drive
Tranny: 30wt
Diff: 90wt (gear oil)
Carbs: Brand new Weber (no oil needed)
Radiator: Normal Prestone (by eye) 50/50

Quantities....

Oil 5 qt + 1 (or so with oil cooler = 6
Tranny ?????????
Diff by eye

Thanks all - off to a buddy's shop tomorrow night for a day or two of fun. If I'm lucky - I'll even get some of the "when I have time to" items off the list like my recond tach that just sits in the hole (I know, the time necessary to hook it up).

Tx-

Geo

 

[walshja]

george, I think you got it !!

the tranny is like your differential, fill until it overflows.

if you are off to a buddies shop, you should plan on changing your hydraulic fluids as well, and make sure you bring your grease gun for your suspension and hand brake spots.

 

[v8mgbal]

hello, I thought the tranny used the same oil as the engine.

 

[Jim_Gruber]

Way too much oil there George. I think it's something like 3.5 or 3.9 quarts. Unless you add 5 like I did and wonder why the engine is so sluggish to rev as you drag the crank through the oil and foam it up.

 

[JPSmit]

george, I think you got it !!

the tranny is like your differential, fill until it overflows.

in other conversation, I get the idea that the consensus is to fill the diff to about an inch below the hole, then it won't seep out the axles or the pinion

 

[JPSmit]

hello, I thought the tranny used the same oil as the engine.

tranny oil depends on the tranny I think

 

[v8mgbal]

hey all, but I thought the diff. oil is what lubes the bearings so doesn't it need to be full to get to those bearings.

 

[jvandyke]

a bit below the fill hole is full enough, up to the fill hole just means more likely to leak, stick your pinky in there, bend it down, when it comes out wet, stop filling.

 

[toysrrus]

Hi Folks,

I`m about to do the same procedure. Engine, Trans and Rear: Engine & Rear are OK. I would like to be certain about the "TRANS" fluid.

Some people suggest using "Gear Oil"!

George, Is that "Straight 30W Engine Oil"??

Thanx, Russ

 

[jlaird]

If you have any engine from 948 through 1275 and a stock tranny ie smooth or rib case, use the same oil as the engine.

 

[George Zeck]

Russ -

Gear Oil for the Diff is 90Wt

Tranny is 30Wt.

Tx-

George

 

[v8mgbal]

hey all, looked in my shop manual and it says to use engine oil for the tranny which is 20w50 in my 1275 eng.

 

[bthompson]

That's always been my understanding. Consensus in previous posts were that the 1500s take 85w-90 GL4 in the tranny and diff, but all the BMC engines (anything other than the 1500) takes 85w-90 GL4 in the diff ONLY, and take 20w-50 in the engine and trans. Either Castrol 20w-50, or Redline, or Valvoline racing oil; (all proven to have enough ZDDP.)

 

[Sarastro]

Even if the differential oil level is a little low, you'll still get oil to the rear bearings. Remember, it gets flung all over the place when the car is moving. And, since it's getting to the rear bearings anyway, keeping the level low won't do much to prevent leakage at the hubs if the seals aren't OK.

 

[George Zeck]

Did all last evening ....

Most looked pretty good. Did no harm in replacing 3 - 4 year old fluids.

Tx-

Geo

 

[walshja]

hey George, did you grease up your suspension? I did mine last night.

I put under a thousand miles on the car since I last greased the suspension, and I was pushing out some dirty grease, seems like this should be done more often than not.

 

[George Zeck]

Joe -

Yes - we did grease up the suspension. Frankly, I thought it was the coolest things. My buddyhas a shop and has a pneumatic / air driven grrease gun. 7000lbs of pressure sures kicks out the bad old stuff. It was prett cool!!

Tx-

Geo