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Torque Converter questions.
My car's off to Bristol Transmission next week to have a look at the TC as it's showing the classic "driving on cobbles" and rough changes dropping out of drive in traffic. A few questions.
Does changing the TC also mean the gearbox oil will be changed? Time to get it megaflushed anyway?
Is this the time to get the pan and filter changed to the metal BMW one?
The gearbox oil gets pretty hot in traffic or crawling up very steep hills (104c is the highest I've seen), is this the time to get the gearbox cooler replaced, or does that mean changing the whole rad?
Anything else that can easily/sensibly be done at this stage with the gearbox out (it does been taken out?)?
TIA chaps.
3rd Jul 2015 9:55 am
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if you put the BMW pan on, then there will be less fluid in there overall, so possibly wont cool as much as there is less oil, so the same oil is in use more, heating it up more. Possibly. Not sure if it makes any difference overall as many people have it. But if theyre taking everything else off, then may as well change the filter anyway.
TC is part of the gearbox oil system, so effectively you will already be changing a lot of the oil. If theyre changing the Autobox filter as well, then even more so.
Not sure what my hottest temp is on the oil. The oil cooler is built into the side of the radiator. Could be worth a rad change if you've never had it done. Consider changing the intercooler as well as it is easier to take out at the same time as the rad. Mine had a bout 2KG of mud in the fins over the years. I doubt that yours will be any different! Bodsys Brake Bible
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3rd Jul 2015 10:02 am
Kingmav66
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The cooler is in the rad. Have you ever had a new rad? If it was mine, then I would change the rad
Most of the oil is in the TC, so by draining a removing the box, replacing the TC. You've basically had a flush. It wouldn't surprise me if they recommend a box rebuild
Oil will be changed, so don't bother with a separate flush.
Wouldn't bother with the metal sump. It's only worthwhile if you want to change the filter every now and then, but since the filter is basically a strainer and probably not worth changing, let alone often...
Think the temp will be as a result of the failing TC? The cooler is indeed integral to the radiator.
In terms of other stuff, the cross over pipe will enevitably be checked. Since you've had the body off fairly recently, I shouldn't think there's anything else left to be done under there!?
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Consider changing the intercooler as well as it is easier to take out at the same time as the rad. Mine had a bout 2KG of mud in the fins over the years. I doubt that yours will be any different!
Del had a new intercooler not that long ago. Current: Discovery 3 06MY (55 reg) HSE Auto Zambezi Silver Allisport Fast Road Intercooler, V8 Brakes, Silicone IC Hoses, EGRs Blanked, Remapped, De-Cat pipe, FBHIC
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3rd Jul 2015 10:07 am
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No, I just have a good memory!Current: Discovery 3 06MY (55 reg) HSE Auto Zambezi Silver Allisport Fast Road Intercooler, V8 Brakes, Silicone IC Hoses, EGRs Blanked, Remapped, De-Cat pipe, FBHIC
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3rd Jul 2015 10:13 am
DSL Keeper of the wheelie bin
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Yep, and the cross-over pipe was checked when the body was off a couple of months ago.
Cheers chaps, I have seen that BT do change rads, probably work out a lot cheaper than if Guava do it. Way above my skill level.
Good to know it'll effectively have had a flush, something I was going to have done next year anyway.
3rd Jul 2015 10:14 am
DSL Keeper of the wheelie bin
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Just googled what a TC looks like, like something out of Men in Black!
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Previous: FL2 56 reg SE Manual Black (written off )
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Disco 2 TD5 Y reg ES Manual Blue - Chipped
Several Discovery 300 TDis
3rd Jul 2015 10:41 am
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Impressive and scary in equal measures.
3rd Jul 2015 10:42 am
Robbie
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When the TC starts to fail it can produce more heat.
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Would explain the hot oil temp, assuming that 104c is hot. I've not really got a handle on what the normal range is. Plus that heat is being transferred to the radiator so prob not helping oil temp and coolant temp.
3rd Jul 2015 10:53 am
DiscoDunc
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are you driving it over or having it delivered - pop in if you are passing - im in Monday and Thursday if you have time Duncan
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3rd Jul 2015 11:09 am
DSL Keeper of the wheelie bin
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Unfortunately going there Tuesday, Jen's following as my ride back. Thanks for the offer, might drop in when I pick it up, if you're around.
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Allisport Fast Road Intercooler, V8 Brakes, Silicone IC Hoses, EGRs Blanked, Remapped, De-Cat pipe, FBHIC
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