Gear Box Oil Pan Gasket Renewal

eadmr04

eadmr04

Member
I have a 1969 P6b 3500 and as above I'm planning on changing the gasket as I've had a small leak for a while. Is there any tips anyone has got out there? I plan on putting some new oil in, so as anyone got a rough idea of how much I'd need top up to replace the amount that will be in the pan. I'd imagine a lot will remain in the box so shouldn't have to renew the full amount? Do I have to re-rill via the dipstick tube?

I will replace the gasket and wondered what would be the best type to get and I heard it mentioned that the bolts have "special washers", if this is the case would it be worth changing them?

Cheers.
 
The sump should have a drain plug, so drain off what you can, but still be prepared for a soaking when the sump actually comes off, you never get it all out. If you buy a gallon (or 5 litres) of fluid (Ford spec M2C-33G) that will be more than enough for a single drain, and leave some for future topping up. (What? You really think that changing the sump gasket is going to make it leak free? :LOL:). You refill through the dipstick tube. Take it easy as it backs up. Make sure the sump gasket mating face is flat, over time they dome upwards around the bolts and so don't compress the gasket properly. Skillful dressing down of the mating face works wonders. It should be a cork gasket, but rubber ones are now available at considerable expense. (I do have one of those if you want to go that way, for a more reasonable sum). Don't worry about changing the washers, and don't overtighten them. Personally I'd always put a socket on the rear servo mounting bolts to make sure they're not loose while the sump is off. You could change the filter too, but you won't know what type you need until the sump is off, which prolongs the job a bit, and it may have the wrong one fitted so you need to be sure to get the correct one, which may not be the same as the one that's currently on there.
 
eadmr04 said:
By the way, what box would I have in mine, 35 or 65? :oops:
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It should be a 35, and I'd be very suprised if it wasn't. Some one would have had to have retrofitted a 65. If the dipstick tube is on the driver's side (RHD) it's a 35.
 
i drained mine over the weekend ,over the past couple of years my fluid has looked ok using the dipstick and has to be topped up beacause of weeping , my sump had no drainplug so i unscrewed the dipstick tube to drain , the fluid in the bowl looked to have some coppery appearance on the surface and the sump contained quite a lot of a graphite coloured sludge , i had lost reverse and could see the adjuster for the rear band so i just tightened a quarter of a turn i could see some free play was taken up and now reverseis there again , but i am concerned a little about the band dragging and burning out , but basically my car will be off the road now due to irelands increasing austerity measures and petrol prices, the refill took about a litre more than the gallon that i had bought just to warn you , i will put up some pics of what to expect, good luck rich
 
rover100rich said:
my sump had no drainplug so i unscrewed the dipstick tube to drain ,
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That can only be because yours is a 4pot and the OP's is a V8.


rover100rich said:
i had lost reverse and could see the adjuster for the rear band so i just tightened a quarter of a turn i could see some free play was taken up and now reverseis there again , but i am concerned a little about the band dragging and burning out ,
Click to expand...

The band should really be adjusted as per the book, but you'll probably be OK if you haven't gone too mad tightening it up.



rover100rich said:
the refill took about a litre more than the gallon that i had bought just to warn you , i will put up some pics of what to expect, good luck rich
Click to expand...

You will get more out if you leave it draining for that length of time, but tbh that's not the way most people do it, they drain it, replace the gasket, and refit the sump. I'm still not sure that you would get 9.75 pints out of it no matter how long you left it draining though.
 
also i could not adjust the band from inside the car as the manual shows ,maybe that only applies to early cars,regards ,rich
 

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Those pictures clear up the misunderstanding. The OP is talking about a 36 box, you have a 65, which is why you drain from the dipstick tube. Both band adjusters are external on all 65 boxes, on 35's the front one is internal, only the rear one is external.
 
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