thor64
Rover Fanatic
Posts: 138
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Post by thor64 on Sept 12, 2020 12:50:30 GMT
On my 64 DG auto box there are two square locating pins one of which is preventing me from taking off the sump due to being fouled by a gear box mount bracket. Do these square locating pins unscrew or do you have to jack up the gear box so it clears the mounting bracket. The manual says remove the sump, is there a link where I can get the "How To"? I'm in the middle of changing the Trans fluid and want to clean the filter and replace a weeping gasket. Thanks Rob
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Post by djm16 on Sept 12, 2020 13:49:33 GMT
The only square things on the DG box are pressure take off points. I don't remember a mount fouling the sump, but a cross shaft is secured by two bolts that also hold the front of the sump. Would you like to post a picture?
Why are you dropping the sump anyway?
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thor64
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Posts: 138
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Post by thor64 on Sept 12, 2020 14:59:16 GMT
Hi djm16, I am doing a trans fluid change and also want to replace the weeping sump gasket while inspecting the filter screen for cleaning. The photo shows the gearbox mount and the square shaped pin keeping the sump from sliding out. I have removed all the bolts. The only way I see to remove the sump is to take off the mount and jack up the gearbox. Unless the square pin unscrews. Rob
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Post by harvey on Sept 12, 2020 16:18:21 GMT
Has that mounting got any rubber in it?
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thor64
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Posts: 138
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Post by thor64 on Sept 12, 2020 17:03:02 GMT
Hello harvey, I wondered if anyone would notice. I will be replacing the mount at some time but my primary concern is I have emptied the trans fluid from the autobox and want to refill it ASAP but need help with how to get the sump off. Robert
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Post by harvey on Sept 12, 2020 17:44:55 GMT
I'd be inclined to do the mounting at the same time as the sump, that way it's not obstructing you and is getting fixed at the same time.
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Post by lagain on Sept 12, 2020 18:37:35 GMT
I know that my gearbox is a 35 so probably a bit different but I spent years trying to get my sump gasket to stop leaking and then I realised that it was leaking from higher up and just dripping off the sump.
Filler tube, inlet and outlet, downshift seal even the inhibitor switch. Hopefully a new gasket will solve your problem but if not look higher.
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thor64
Rover Fanatic
Posts: 138
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Post by thor64 on Sept 12, 2020 18:59:11 GMT
Hi lagain, my car has not been on the road for a while so I'm replacing old for new as I go. When I was removing the bolts all were covered in Trans fluid and the gasket is soaked. I also hope there is no problem further up.
I would definitely be replacing the gearbox mount bush. So as an added question will a P4 gearbox mount bush work? I cannot find a suitable p5 replacement. Rob
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Post by eightofthem (Andy) on Sept 12, 2020 19:03:19 GMT
Hi djm16, I am doing a trans fluid change and also want to replace the weeping sump gasket while inspecting the filter screen for cleaning. The photo shows the gearbox mount and the square shaped pin keeping the sump from sliding out. I have removed all the bolts. The only way I see to remove the sump is to take off the mount and jack up the gearbox. Unless the square pin unscrews. Rob The square headed " pin " mentioned is the direct drive pressure take off plug, you can remove it if you want too as it acts as a "plug" and nothing will fall out except some fluid. As mentioned though that mount .... If you are doing a fluid change then the converter can also be drained as it has a drain plug fitted. |
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thor64
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Posts: 138
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Post by thor64 on Sept 12, 2020 19:20:23 GMT
Hello Andy, thanks for the reply, the square pin would just screw out then? I've already drained the torque convertor. There was lots of fluid from both the gear box and convertor all a dark colour.
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Post by eightofthem (Andy) on Sept 12, 2020 19:55:43 GMT
Yes it will just unscrew, might be a bit tight as it's been in there a while.
Be sure to use the correct fluid and make sure the sump pan is flat on the gasket side, although the DG pan is quite thick steel it can still dish upwards around the bolt areas.
Also note the converter will need to be filled by the pump unless you rotate the drain plug above the horizontal and pump new fluid in that way, so take note of the capacity of oil it will take as you won't be able to put all the fluid in one go unless you pre fill the converter.
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thor64
Rover Fanatic
Posts: 138
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Post by thor64 on Sept 12, 2020 22:30:16 GMT
Thanks for the useful advice. I have been inspired to take on this job by the chairman's chat in the latest Take Five and being able to get some trans fluid from Wilko Direct.
As for the gearbox mount I would appreciate help on locating a replacement. Rob
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Post by djm16 on Sept 13, 2020 10:50:14 GMT
OK, now I see.
Yes, take the rear mount off. It is not trivial to remove, but I am predicting that the sump will not slide out with it there.
As someone else has hinted, while the sump gasket may well be weeping, I can guarantee that trans fluid will be weeping from everywhere else as well. You can spot some of them by taking off the transmission tunnel and cleaning off every trace of oil / grease.
Here are some of the locations:
- front pump seal
- selector shaft seal
- speedo drive unit
- extension casing gasket
- governor cam stop adjuster
- governor adjusting shaft seal
- rear oil pump seals
...
and so on!
Some of these you can fix with the box in the car.
I put a lot of effort into fixing all of these once. The box stayed dry for about 3,000 miles.
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Post by eightofthem (Andy) on Sept 13, 2020 10:55:34 GMT
Not seen a rear mounting so I can't point you in the right direction, but you might be able to adapt another type of mounting to suit such as a P6B auto mount.
A bit of improvise overcome and adapt, or there are these kits available where you pour a compound into your existing to make one.
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thor64
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Posts: 138
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Post by thor64 on Sept 13, 2020 11:36:57 GMT
Hello again, I have seen a bushing that might work and it looks the same, it's for a P4. I believe late P4 and early P5 have parts that are interchangeable. I have asked for dimensions and will see. Rob
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thor64
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Posts: 138
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Post by thor64 on Sept 13, 2020 18:38:36 GMT
Hi, well it is very useful and helpful having this site. Much appreciate people's advice. After what I think is going to be a simple job three days later I have the sump off ; I have had to make a special tool to remove the square pin ( see photo) not my best work. I can now clean the filter screen which was dirty, replace the gasket and the Trans fluid. If anyone is interested I can create a post detailing the procedure? Wouldn't you know I now have the job of finding a new front trans mount. There is always something. I know I will be asking for more help soon. Rob Attachments:
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Post by Phil Nottingham on Sept 13, 2020 21:10:34 GMT
Wadhams does the rubber for DG gearbox mount. Did mine 6 months ago
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thor64
Rover Fanatic
Posts: 138
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Post by thor64 on Sept 16, 2020 17:42:55 GMT
Hello Phil, did you ask for any particular part number? Rob
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Post by Phil Nottingham on Sept 17, 2020 20:48:23 GMT
No - its listed in the Rubber and Gearbox sections of his website. The same one is used for manual transmissions too. It is not the same as the one for P4s either
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thor64
Rover Fanatic
Posts: 138
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Post by thor64 on Sept 18, 2020 10:51:26 GMT
Hello Phil, thanks for the help, I will take a look. Rob
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