|
|
Post by tazed1938 on Sept 5, 2018 15:24:14 GMT
G'day from Tasmania! I recently bought a Mk1 automatic which hasn't been driven for four weeks while I carry out a few repairs. I noticed yesterday that oil was leaking from the gearbox onto the driveway. It is definitely from the g/box because the previous owner gave me some and it is red colour. I thought I would check the level on the dipstick and when I pulled it out the oil was right to the top of the "tube"! I have been checking all the oil levels diligently since buying it and never had to add any at all. I have owned many landcrabs in the UK ( I am 80yo now so have had a few). Can anybody tell me how this has happened?
Cheers from tazed1938
|
|
|
|
Post by Penguin45 on Sept 5, 2018 23:27:49 GMT
Hi Tazed.
I'll say right now that I don't know much about the auto box - it comes somewhere on the list between voodoo and black magic in my own technical knowledge. However, I did have a quick read in the tech manual, which suggests that the torque converter should normally be full of fluid. If the car has been stood, perhaps that fluid has drained down into the box, thus raising the level? I don't know enough about it to say whether or not that's an issue, or whether it gets picked up again when the engine is run.
Someone will probably have a better answer......
Chris.
|
|
|
|
Post by 1800heap on Sept 6, 2018 0:14:06 GMT
Hi Tazed
Both the auto cars I own (not 1800's though) suggest the auto fluid level should be checked by starting the engine then move through all the gears pausing on each, then back to neutral, then check keeping the engine running and in neutral. This may be the case with the crab also. This suggests as Chris says that the oil may drop back out of the convertor etc and give a false level. Hopfully an auto owner will confirm for you!
Nick
|
|
|
|
Post by dave1800 on Sept 6, 2018 1:57:38 GMT
The automatic gearbox is a conventional Borg Warner unit. I owned a Mk11 automatic for a year or so and the transmission level needs to be checked with the engine running and hot and on level ground. It is possible that the previous owner filled the fluid when the engine was running but cold so it was overfilled. As Chris and Nick have pointed out the oil from the torque converter drains back into the pan when the engine is stopped. Can you tell where it is leaking?
David
|
|
|
|
Post by tazed1938 on Sept 7, 2018 12:44:58 GMT
Thanks Penguin 45 you were right on the money! I took the car out for a spin around the block, left it ticking over and checked the level.... spot on! Must be something common with landcrabs as I also have a Honda and a Mazda, both automatics and never had an issue. I'll be keeping a close watch on the dipstick from now on . Cheers
|
|
|
|
Post by rosieuk on Sept 24, 2018 16:05:36 GMT
Glad it's sorted but it's given me a thought. The manual engine shares the oil between the engine & transmission - so the sump also contains the transmission.
It strikes me therefore - where does the engine oil for the automatic engine end up when it's switched off? Granted there's 1.4 litres less oil for the automatic over the manual but it's got to go somewhere.
This is important because if there is a sump between the automatic & the engine - maybe this sump could be modified and fitted in between the bottom of the engine and the manual transmission in the bottom of the then "outer" sump. Separate oil supplies and therefore less wear & tear and compromise between engine oil trying to lube a gearbox...
Just a thought..
|
|
|
|
Post by Penguin45 on Sept 24, 2018 19:01:18 GMT
Top of the autobox acts as the engine sump case and reduces the engine oil capacity from 15 pints to 6½ pints. The auto box contains 13 pints of ATF.
Chris.
|
|
|
|
Post by rosieuk on Sept 27, 2018 17:11:40 GMT
Top of the autobox acts as the engine sump case and reduces the engine oil capacity from 15 pints to 6½ pints. The auto box contains 13 pints of ATF. Chris. Almost sounds like a semi dry-sump arrangement, and not much spare oil for the engine.. I was thinking - to split an engine/transmission & see if there's space for a pressed panel and the relevant drains installed so engine oil for the motor & proper gear oil for transmission. Probably too expensive for the benefit. Although thinking about it the Humber Sceptre used 20/50 in the gearbox and overdrive.. So I'm probably just blethering on. |
|
|
|
Post by dave1800 on Sept 28, 2018 6:38:55 GMT
I think a few crab owners have considered whether it would be feasible to split the engine and transmission oil - the 6.5 pints for the engine mated to an auto box is not much less than the MGB. In practice the gearbox in the sump arrangement doesn't appear to shorten the engine or transmission life compared to conventional installations as long as the oil is changed regularly and nothing breaks. David Top of the autobox acts as the engine sump case and reduces the engine oil capacity from 15 pints to 6½ pints. The auto box contains 13 pints of ATF. Chris. Almost sounds like a semi dry-sump arrangement, and not much spare oil for the engine.. I was thinking - to split an engine/transmission & see if there's space for a pressed panel and the relevant drains installed so engine oil for the motor & proper gear oil for transmission. Probably too expensive for the benefit. Although thinking about it the Humber Sceptre used 20/50 in the gearbox and overdrive.. So I'm probably just blethering on. |
|
