72er
Rover Rookie
Posts: 21
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Post by 72er on Jan 20, 2022 14:19:08 GMT
On the gearbox casing just under the inhibitor switch is the flat surface of the input gear change shaft, mine has a hole from which fluid leaks all over my garage floor, looking at other cases that don't have this hole I decided to block it, but before I refit the engine I would just like to know what this hole is there for, any info would be gratefully recieved, regards Colin
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Post by lagain on Jan 20, 2022 15:42:46 GMT
I put a small self tapping screw in mine many years ago - that fixed it !
Fluid can also seep through the inhibitor switch, I covered mine in Araldite.
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Post by Phil Nottingham on Jan 20, 2022 15:45:20 GMT
 Cannot recall any hole - the inhibitor switch and gear change shaft seals are noted for leaking along with sump gasket. Are you sure it is not a blind hole? You do not mean the kickdown cable entry? Post a picture? |
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72er
Rover Rookie
Posts: 21
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Post by 72er on Jan 20, 2022 16:31:10 GMT
View AttachmentCannot recall any hole - the inhibitor switch and gear change shaft seals are noted for leaking along with sump gasket. Are you sure it is not a blind hole? You do not mean the kickdown cable entry? Post a picture? I don't know how to load pictures on here as that would have helped show the hole, but I think blocking the hole is ok |
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Post by Phil Nottingham on Jan 20, 2022 17:14:13 GMT
Just click on "Attachment" the green box at top right on a new or "edit open" post. The 3 attachments have a max size of 150KB each so will need to be heavily resized
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Post by lagain on Jan 21, 2022 15:52:15 GMT
View AttachmentCannot recall any hole - the inhibitor switch and gear change shaft seals are noted for leaking along with sump gasket. Are you sure it is not a blind hole? You do not mean the kickdown cable entry? Post a picture? The hole is on the top of the rounded casing where the selector rod goes into the gearbox - very strange as fluid leaks out through it. |
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Post by harvey on Jan 21, 2022 18:54:52 GMT
]The hole is on the top of the rounded casing where the selector rod goes into the gearbox - very strange as fluid leaks out through it. IIRC that hole is for the pin that holds the selector shaft in place. If that's supposed to be a solid pin, and it's been replaced with a Mills (or roll) pin, then I can see that it might leak. I just can't remember offhand what type is supposed to be in there. |
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Post by eightofthem (Andy) on Jan 21, 2022 19:53:21 GMT
The hole contains a solid pin which locates the main selector shaft by passing through a slot made in the actual shaft.
It is sealed at the gasket side of the case by the sump gasket itself, the top of the main case ( where you are having the leak ) should have a small dome shaped plug to stop any leaks.
It is more than likely missing in your case, so just clean and seal it up.
Worthwhile checking the fluid level as it sounds like it's a little on the high side, or it's left standing for a while.
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Post by lagain on Jan 22, 2022 16:48:52 GMT
The hole contains a solid pin which locates the main selector shaft by passing through a slot made in the actual shaft. It is sealed at the gasket side of the case by the sump gasket itself, the top of the main case ( where you are having the leak ) should have a small dome shaped plug to stop any leaks. It is more than likely missing in your case, so just clean and seal it up. Worthwhile checking the fluid level as it sounds like it's a little on the high side, or it's left standing for a while. That's interesting, I wonder if they left mine out when they rebuilt my gearbox, but that was 30 years ago ! Pity we did not have the Forum then |
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