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Post by wayne962 on Jun 12, 2024 19:35:42 GMT
Hi all. Long story - my BMC Landcrap engine & manual trans has no dipstick. I've read all of the archives and there seems to be issues with manuals saying the wrong capacities, and different dipstick lengths, etc. I have a Smiths vacuum oil level gauge in my car (I can post a photo later), it replaces the standard dipstick. But I have no idea if the thing is calibrated correctly. So, I need to fill the car with the proper amount of oil and then set the gauge to "green". Trouble is, I have no idea how much "the proper amount of oil is". I took the oil out (engine came back from the rebuilder), and it seems really low. I have yet to weigh it (my method for calculating the amount) - I will post that soon.
Question - when you empty the whole thing out, without taking out the filter, what is the amount (in pints or quarts) that you should put back in?
Thanks,
Wayne
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Post by wayne962 on Jun 12, 2024 19:46:01 GMT
I just weighed it using my scale - 8.6 lbs of oil, which equates to almost exactly nine pints coming out of the motor.
The Smiths vacuum gauge thing I have has been reading low with the nine pints. Looks like, according to the manual, it should be 11.5 pints (without replacing the filter?)
Let's see if I can post some photos...
-Wayne
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Post by wayne962 on Jun 12, 2024 19:50:37 GMT
Another photo of where this thing attaches. This is installed because in this car, there's no way to reach the dipstick (ever).
I'm planning on adding back in 11 1/2 pints like it says on page 27 of the Austin 1800 Owner's Manual that I have. There just so much confusion, I want to make sure that's what this group here suggests.
Thanks,
-Wayne
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Post by dave1800 on Jun 13, 2024 1:24:52 GMT
Hi Wayne
When you drain the oil there is often around 1 pint left in the transfer gear case. I would be wary of putting 11.5 pints in (without the filter). Early engines held around 2 pints more according to the handbook but the level was reduced as engines were failing as it was claimed high speed running on motorways caused loss of oil pressure as the rods churned up the oil causing it to froth.
Even if you have a dipstick there is still lots of confusion as to its length as you will have noted. Hopefully someone here who is currently changing their oil can confirm what volume they measured when it is drained.
David
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Post by wayne962 on Jun 13, 2024 5:12:35 GMT
I jacked the car way up in the front to get extra oil out, if that means anything / matters. With the car on an angle, it's hard to believe that there's a whole pint left in there? Oh wait, you said the transfer case - I thought that was independently filled from the filler hole on the top? Man, these cars are confusing.
At the end of the day, it seems like this is a big guess, and one should keep an eye on oil pressure to be sure. I'll probably put in 10 pints and see if the oil level matches the level that is currently set on the car. I've unfortunately found out the hard way that just because something is set some way on this car, doesn't mean it's correct (it had the completely wrong distributor in there, for example).
Thanks,
Wayne
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Post by wayne962 on Jun 13, 2024 5:31:11 GMT
Okay, I just put in 5 quarts (10 pints), and the level is now "green". I think I'm going to reset it to this level of 10 (so anything below this is red), and then add one more pint or so. I think that should do it?
-Wayne
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Post by dave1800 on Jun 13, 2024 6:09:02 GMT
You don't usually have to top up the transfer case unless the engine and transmission have been taken apart. How much drains from the transfer case on an oil change seems to be variable I assume it depends on the angle. I guess we talking imperial quarts /pints?
David
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