New Game CMP Brain Teaser Trivia

[Howard]

Originally Posted by Phil Waterman

Question #1 On Chevy CMPs what gear do you put the transmission to check the lube level?
Cheers Phil

It matters?
H

[Phil Waterman]

Hi Grant

We had to go to the instant replay booth for a review of the ruling on the field.

No you don't have to know the answer question.

Cheers Phil

[Richard Farrant]

OK, to dive into Phil's question. I see that due to the plan view of the gearbox casing, at oil level height, it is slightly irregular, and by selecting a gear, ie sliding one of the gears along the mainshaft, it might displace a few cubic centimetres of oil in doing so, but it is hardly worth considering as when the gearbox is revolving, the level is not maintained as oil is everway and whichway around the box.
Not seen any note of selecting a gear before checking oil in any Chev or Bedford box (Bedford is basically a Chev design) in official manuals. Do not think the CMP gearbox is any different to aforementioned.

Hope this opens the discussion !

cheers Richard

[Tony Wheeler]

Not familiar with the Chev box but does it have anything to do with finger access?

[Phil Waterman]

Hi

Richard raises an interesting point, which I'll have to verify the next time I have a Chevy gear box out on the bench to see if the level changes depending which gear is selected.

Tony is getting very close but lets see if anybody can add to the reason.

Cheers Phil

[Richard Farrant]

Originally Posted by Phil Waterman

I'll have to verify the next time I have a Chevy gear box out on the bench to see if the level changes depending which gear is selected.

Hi Phil,
The level should not alter where ever the gears are as they are only displacing the oil from one side to the other. I was thinking this a trick question as never seen any reference to it in the publications.

[Phil Waterman]

Hi Richard

I've gone back to see if I pick this up from any manual and didn't find this in any of them either. This is just something you pick up after lots of years taking care of Chevy CMPs.

I had to stop and think about the displacement change, I was thinking of the 3rd to high engagement on the main shaft but that is above the static level of lube in the transmission.

A hint this is both about checking the level and putting lube in. If you have ever had trouble get lube in this may explain why.

Cheers Phil