rumble from below!

ozzyboydeano · Nov 29, 2016

Mark Piercy said:
I'll be be doing the pin pointing this afternoon when my son gets back from school. The converter has not failed at this point, just sounds like it is complaining..
This was the idea of asking for pointers.
I have recently been over the mountings and prop shafts after doing a routine check and grease up under the bus. She is in all honesty quite a good solid car underneath. Hence the reason I jumped at the chance to buy it.

if it was drive line issue it would be related to road speed (not RPM related ) bit like an in balanced wheel /tyre ..but this would not indicate to a rumble after the shut down because the driveshaft doesn't move after shut down

ozzyboydeano · Nov 29, 2016

HMMM

wammers · Nov 29, 2016

jamesmartin said:
an engine crane lifting through the tunnel once the plates removed makes it doable on a driveway

Yes just so.

ozzyboydeano · Nov 29, 2016

no need for an engine crane lift unless your deciding

Mark Piercy said:
I have a ramp In my garage, I did a Nissan terrano clutch (swearing) last week. That is one reason why I'm not jumping at the chance to do it!!!! Arrrgh...

Running away!!!

if you need an old d21 terrano fuel pump I have one here

with the terrano you needed to drop the front torsion bar suspension to remove the box

since the landrover doesn't use torsion bar suspension you wont need to worry about the extra work involved

gold rover · Nov 29, 2016

Mark Piercy said:
I have a ramp In my garage, I did a Nissan terrano clutch (swearing) last week. That is one reason why I'm not jumping at the chance to do it!!!! Arrrgh...

Running away!!!

Jeeesus you're quick. Took ages for me to get to the bottom of the post after you screamed and you were already there

Mark Piercy · Nov 30, 2016

Ok guys, the results are in.
After listening carefully to the gearbox at various engine speeds, we have a noisy oil pump at the converter end,
A mild droning noise from the gearbox core and yes it is indeed the converter rumbling on shut down, even at idle (at a lower volume).
Diagnoses based on mileage and age.
Worn box!

Gazbo · Nov 30, 2016

Mark Piercy said:
Ok guys, the results are in.
After listening carefully to the gearbox at various engine speeds, we have a noisy oil pump at the converter end,
A mild droning noise from the gearbox core and yes it is indeed the converter rumbling on shut down, even at idle (at a lower volume).
Diagnoses based on mileage and age.
Worn box!

Start saving your money then, dont know how much a rebuild is in your part of the world but over here two arms and at least one leg!

Mark Piercy · Nov 30, 2016

I know, its an expensive do', but this one lasted 189,000mls... so I'm going to rebuild it myself. the average price here is around 1600-2000€!!! holy bat turds!

Fergie46 · Nov 30, 2016

That's good news, you've sussed it

Mark Piercy · Nov 30, 2016

I guess she be off the road for while..
Booloocks

ozzyboydeano · Dec 1, 2016

Mark Piercy said:
I guess she be off the road for while..
Booloocks

I haven't yet rebuilt a tranny off a land rover yet but all the transmissions I have rebuilt have come off A40 d dump trucks and other big toys .they all seems to work on the same principle .the oil pump is normally located behind the bell housing on the tranny (so transmission out bell housing off simple )

I have never heard a oil pump rumble before but there is allways a first ..normally the transmissions I work on have test ports to plug in a pressure gauge
maybe the oil pump may have wear and cavitation... more than likely the transmission bearings have been oil starved

unless your doing a full transmission rebuild then yes it going to expensive and time consuming

just a question has this vehicle been towed at any point for a long period ?

gold rover · Dec 1, 2016

Mark Piercy said:
I guess she be off the road for while..
Booloocks

Good luck with it. At least once she's done you can enjoy her again

Mark Piercy · Dec 1, 2016

Its the converter rumbling, the oil pump is making a light crickling noise.. If you can imagine that?
Never towed as long as I've owned it and not before in my friends hands.

ozzyboydeano · Dec 2, 2016

Mark Piercy said:
Its the converter rumbling, the oil pump is making a light crickling noise.. If you can imagine that?
Never towed as long as I've owned it and not before in my friends hands.

so it was the convertor

the oil pump is a gear pump not a vein pump ..there might be some wear in the oil pump making the teeth chatter as if it was out of tolerance ..is there much metal swarf on the sump magnet ?
you could tear down the oil pump and check tolerances and inspect oil pump housing for serious wear
the correct way would be to test pressures but I'm unsure how to do this on a ZF transmission

some transmissions allow to test via a diagnostic tool

the transmission I work on have test ports

wammers · Dec 2, 2016

ozzyboydeano said:
so it was the convertor

the oil pump is a gear pump not a vein pump ..there might be some wear in the oil pump making the teeth chatter as if it was out of tolerance ..is there much metal swarf on the sump magnet ?
you could tear down the oil pump and check tolerances and inspect oil pump housing for serious wear
the correct way would be to test pressures but I'm unsure how to do this on a ZF transmission

some transmissions allow to test via a diagnostic tool

the transmission I work on have test ports

So does the ZF.

ozzyboydeano · Dec 2, 2016

wammers said:
So does the ZF.

so does the ZF what ? some times I have to throw a sprat to catch a mackerel

I was wondering where you had been and waiting for me to make a mistake LOL

tarphenry · Dec 2, 2016

Do you just like to cause a row. obviously its the test points he is referring to.

wammers · Dec 2, 2016

ozzyboydeano said:
so does the ZF what ?

I would have thought that was obvious, the ZFHP22 gearbox has ports for diagnostic pressure reading.

ozzyboydeano · Dec 2, 2016

tarphenry said:
Do you just like to cause a row. obviously its the test points he is referring to.

just finding my way round the forum
and picking those out who use google

ozzyboydeano · Dec 2, 2016

wammers said:
I would have thought that was obvious, the ZFHP22 gearbox has ports for diagnostic pressure reading.

but nothing moves once the engine shuts down ?

rumble from below!

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