Is your xyz switch original? Might be opportune to overhaul this too.
There are options / suggestions to strengthen the box from Ashcrofts ZF4HP22/24EH - Ashcroft Transmissions
A few months back the D2 had a fail-to-proceed incident with the trans. Stranded SWMBO on a freeway overpass in the p-ing rain and dark. I had it trucked home but haven't had a chance to look at it until now other than checking the oil level (it was fine).
Dropped the oil last night - I now know what oil soaked burnt clutch linings smell like
Its done almost 300K and likely still the original trans so can't complain.
Plan is to remove the transfer, drop the trans and strip it with a view to doing a DIY overhaul.
I've got a couple of other boxes here if I need hard parts. Never been inside an auto before so should be a bit of fun!!
While its out I'll also do:
- engine rear main seal
- get the torque converter overhauled
- have a quick look at the transfer case - if its reasonable it will probably just go back in as-is but otherwise I'll do a complete rebuild on that too.
- oil cooler will need a bit of a flush at least
Anything else I should be doing while I've got the trans out?
Steve
1985 County - Isuzu 4bd1 with HX30W turbo, LT95, 255/85-16 KM2's
1988 120 with rust and potential
1999 300tdi 130 single cab - "stock as bro"
2003 D2a Td5 - the boss's daily drive
Is your xyz switch original? Might be opportune to overhaul this too.
There are options / suggestions to strengthen the box from Ashcrofts ZF4HP22/24EH - Ashcroft Transmissions
2004 Discovery 2a TD5 Auto Aspen Green AKA Robin
2000 Discovery 2 TD5 Auto Alverston Red AKA Edward
1997 Discovery 1 TDi Manual White - Gone but not forgotten
1994 Discovery 1 V8 Auto - Gone once it consumed half the worlds resource of oil
Good chance the XYZ is original so I’ll add that to the list.
Car is just a daily drive so no real need to upgrade the guys got strength.
I’ll probably get the overhaul kit from Ashcrofts unless there is a better recommendation.
Steve
1985 County - Isuzu 4bd1 with HX30W turbo, LT95, 255/85-16 KM2's
1988 120 with rust and potential
1999 300tdi 130 single cab - "stock as bro"
2003 D2a Td5 - the boss's daily drive
Thought I had put this in - Automatic Pan with the Dip Stick to allow easy checking of fluid levels. These can be gotten from a few sources but if you have trouble, UK have a plentiful supply on ebay.
2004 Discovery 2a TD5 Auto Aspen Green AKA Robin
2000 Discovery 2 TD5 Auto Alverston Red AKA Edward
1997 Discovery 1 TDi Manual White - Gone but not forgotten
1994 Discovery 1 V8 Auto - Gone once it consumed half the worlds resource of oil
D4 MY16 TDV6 - Cambo towing magic, Traxide Batteries, X Lifter, GAP ID Tool, Snorkel, Mitch Hitch, Clearview Mirrors, F&R Dashcams, CB
RRC MY95 LSE Vogue Softdash "Bessie" with MY99 TD5 and 4HP24 transplants
SADLY SOLD MY04 D2a TD5 auto and MY10 D4 2.7 both with lots of goodies
Pulled the transfer and trans.
According to YouTube every transmission is stripped on a big stainless workbench with drains etc so thought I’d better do it right !!
Time to use the big stainless tray I picked up a while back.
Oil pan is nasty - and the smell!!!
Special tool for removing the rubber seals in the main case.
The small diameter clutch behind the oil pump ( A clutch? ) is definitely toast.
Will do a proper clean and inspection, but so far apart from that clutch everything else looks reasonable. Haven’t split the valve body or oil pump yet either.
Glad I’m doing it in the tray - they’re messy buggers!
Steve
1985 County - Isuzu 4bd1 with HX30W turbo, LT95, 255/85-16 KM2's
1988 120 with rust and potential
1999 300tdi 130 single cab - "stock as bro"
2003 D2a Td5 - the boss's daily drive
That's for posting up the pics, it's really interesting, I'm gonna try stripping a couple shortly, so this is great info!
It could well come to that yet Slunnie!!
The parts look a bit scary as none of them is a solid round lump like an engine piston, and with the multi plate clutches there’s a lot of individual parts floating around when it’s all disassembled.
I figure at the end of the day when you break it down into logical assemblies it’s really just a few motorbike clutches, a hydraulic pump, and a bunch of simple hydraulic valves stuffed into a case!!
I do have sauce handy in case it all goes dirty side up and I have to eat my words…
Steve
1985 County - Isuzu 4bd1 with HX30W turbo, LT95, 255/85-16 KM2's
1988 120 with rust and potential
1999 300tdi 130 single cab - "stock as bro"
2003 D2a Td5 - the boss's daily drive
They usually swap some later parts from the 4HP24 into the rebuilds.. should be some info in TGO...![]()
"How long since you've visited The Good Oil?"
'93 V8 Rossi
'97 to '07. sold.![]()
'01 V8 D2
'06 to 10. written off.
'03 4.6 V8 HSE D2a with Tornado ECM
'10 to '21
'16.5 RRS SDV8
'21 to Infinity and Beyond!
1988 Isuzu Bus. V10 15L NA Diesel
Home is where you park it..
[IMG][/IMG]
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