Of great interest was the following statement:
So, not quite as "sealed for life" as they first claim..The oil does not have to be changed until it has been in service for ten years.
Moderators: RichardW, myglaren
So, not quite as "sealed for life" as they first claim..The oil does not have to be changed until it has been in service for ten years.
No. Don't do that Dean! Keep all contributions coming..Deanxm wrote:i will stop contaminating the blog now
It seems a bit odd giving only a time-based lifetime for the oil.CitroJim wrote:I was lucky today to catch sight of the official ZF repair manual for the 4HP20.
Of great interest was the following statement:
So, not quite as "sealed for life" as they first claim..The oil does not have to be changed until it has been in service for ten years.
I would like to know who the firm is in glasgow, thats £40 cheaper than i could find a re worked T/C and £40 is £40.The cost of an oil pump, which is only supplied as a complete unit, is £288 whilst the torque converter is a more reasonable £99 + carriage for a remanufactured item. It is rebuilt by a firm in Glasgow. With consumables on top of that, (filter, seals, transmission cooler) the old wallet is going to take a battering Twisted Evil
My theory is that the "misfire" I felt driving on the motorway was something breaking up in the torque converter. debris from this would find its way into the bottom of the transmission (but couldn't get through the filter back to the pump) The car drove 45 miles like this. But when the car was stopped for a couple of hours, some oil, with debris, drained back from the torque converter and into the pump. When the engine was subequently started and rum for about 1/4 mile, a peice of debris has scored the pump and then seized the torque converter bearing.CitroJim wrote: So what happened? The best we can think is the stator sprag or lockup clutch in the TC began to break up and shed some metal. This found its way into the TC tail bearing and then into the oil pump. The debris visible on the oil filter may be remnants of this or bits of the TC tail bearing. Whatever and wherever it came from, it has wrecked the oil pump and this must be replaced. What we do know is that none of it originated in the gearbox proper![]()
But you did have unusually polite customersCitroJim wrote: I really got a quick taste today of what it might be like if I started up my own small specialist business![]()
Yes, it could well be the reason as we saw the intermediate driveshaft bearing is in perfect order.xantia_v6 wrote:I assume that the failed bearing is the cause of the occasional vibration at 90+MPH uphill.
Indeed, ive come back from our new house to the flat where my internet is just to see this threads updates!! although David attenborough is a close secondDaveid Attenborough's 'LIFE' or Jim's 'V6 Gearbox Rebuild'?
The latter wins hands down for me