Urgent help please: automatic gearbox

[James.uk]

Saying "cracked piston" with ref to the gearbox is like saying "head gasket" when a car over heats innit..

Check your solenoids first, and plzz report back.
...

[David3807]

Picked this up on a Freelander site - may be helpfull

http://www.myfreelander.co.uk/Transm...ransprobs3.htm

The adjustment of the selector cables may well be different on a 75 but the diagnosis may be the same.

Also have seen a failing alternator may give similar probs.

Hope this helps

[stocktake]

I thought it was the reverse that failed 1st with a cracked piston, no matter, he seems to know about it. Now, Gulp, just how brave are you?

Click on the link on this post and download the doc

http://www.the75andztclub.co.uk/foru...7&postcount=33

[SD1too]

Originally Posted by NikTheGeek

... does £700 sound good? Well, obviously it doesn't sound good.

You might like to read this:

http://www.the75andztclub.co.uk/foru...ton#post700927

Post no. 10 says:

"Plates and piston - which actually looks like an alloy cereal bowl - replaced with the engine and box in situ"

If this is the same piston and is true, then £700 is way too much. Keep looking!

Simon.

[NikTheGeek]

Measure my solenoids and they were all roughly the same apart from one.

They all read between 16.5-20.1 ohms. So from that I can make out from that is that they are all slightly out, or my cheap multimeter isn't too accurate (or its batteries are low). But the point is, they were all in that range.

Apart from one:

18-11 = Shift Solenoid C

That read 6.6 !

So if my meter is reading high, it should be even lower, more like 4 ohms.

I've no idea what shift solenoid C does, but would that affect 4th and 5th gear?

Here's hoping. But anyway, now what? Where would I get Shift Solenoid C from? And where does it go?

tnx all

Nick

[stocktake]

All the solenoids are behind the black cover plate at the front of the auto box ( under the air filter)

Seemingly you can remove the plate without draining the box, there are posts on here showing the solenoids, have a look about

[man of kent]

Originally Posted by NikTheGeek

It's done 67000 miles now, I had it changed at 61000 miles by an ex rover main dealer in Wigan, now a honda dealer. They claimed they ordered the Texaco N402 in from X-Part especially to do my car as they still had rover staff there who knew what they were doing with these cars. They didn't have testbook though, but convinced me they still knew the sequence to change the oil at the right temperature etc. I'll check my invoice when I get home...

Is xpart oil N402? N402 from Texaco is available in 1 and 20 litre containers. Xpart supply in 5 litres. How? Other sites on this forum say xpart is N403. Texaco told me they did not know what this was and could only recommend N402 as that is what testing was done on. Would you put 15w50 engine oil in your engine if 5W30 was specified?

I would like to get to the bottom of this issue but its very difficult to prove anything. Just ask yourself why jatco specified a special ATF and not the usual Dextron.

[SD1too]

Originally Posted by man of kent

Other sites on this forum say Xpart is N403. Texaco told me they did not know what this was ...

There is a view that the correct designation for "N403' is actually Texamatic 7045E, available in 500 ml bottles from Texaco service stations:

http://www.the75andztclub.co.uk/foru...ad.php?t=14201

I'll have a look next time I visit one.

Simon.

[man of kent]

Originally Posted by SD1too

There is a view that the correct designation for "N403' is actually Texamatic 7045E, available in 500 ml bottles from Texaco service stations:

http://www.the75andztclub.co.uk/foru...ad.php?t=14201

I'll have a look next time I visit one.

Simon.

Interesting that Texamatic 7045E may be N403 but sounds strange to me. A number of comments on the forum suggest 7045E is a synthetic version and may very well be suitable. The only reason I can see for using 7045E is that it is cheaper? Can anybody confirm this?

If 7045E is synthetic then it will have all the advantages of long life like a synthetic engine oil ?? I still prefer to use the ATF all the testing was done on.

It would be interesting to know if 7045E is the equivalent of any of the Dextron ATF's. Its been suggested on numerous occasions that you should not use Dextron and if so, maybe not 7045E.

Its difficult to understand the logic of not wanting to buy N402 from land rover diesels because it costs more when you are risking a £1000+ auto box.

[NikTheGeek]

All fixed by Automatic Gearboxes in Leigh. The receipt shows "replaced clutch 3/4/5" and he showed me a pile of rings, some of which were quite distorted. He keeps a pile of Jacto spares in stock because of the amount of time he spends working on them

Anyway, even though my wallet is lighter, its still cheaper than replacing the car and it has a 12 month warranty on it. Its early days, but it drove home superbly.

Thanks for all the help....

Nick