Hi - have a 4.2 t/d- intercooled , all standard .... 170K on clock - serviced regularly .... Sudden loud rattling & stopped , mechanics all said injector pump but no - #4 cylinder down 100 psi on comp test .... I thought had dropped a valve ... rocker cover lifted & all ok ......so head coming off ... could be $10K repair ... any suggestions re usded motor or rebuild ?
Cheers
I've heard the cranks crack,
rebuild or used would depend on funds IMO
Either way that's not many Ks for a major failure
04 ST 3lt auto, not enough Mods to keep me happy, but getting there
Mate you need to seriously supply more info in your posts not just put "cranks crack". Any crank breakages that have occurred are on motors with around 200% more power and torque than they came with so they have put under massive loads.Originally Posted by threedogs
As for the repair I would wait and see what the head removal reveals. It could be as simple as a shitty valve seat. And it shouldn't cost 10k unless that's someone else removing then engine, rebuilding the refitting as well. I would honestly rebuild as you never quite know what your in for with a used motor. You can also pickup reco td42 for around 6k.
Last edited by nissannewby; 15th July 2014 at 06:18 PM.
Ben-e-boy (15th July 2014), macca (16th July 2014), MudRunnerTD (15th July 2014)
Mechanic has rung - #4 cylinder big end bearing failed , he is not sure why ... suspects injector failed and pour fuel in & hydraulically locked - getting price for new short motor .... arranging van to go home on tilt truck back load ..... looking for flight to india to sell a kidney
macca (16th July 2014), nissannewby (16th July 2014)
Bugger mate! is the TD42 in a Bus? or a Patrol?
Its a Nissan! =====> Its a Keeper!! ....... Got a TD42 in it BONUS!!....... I'm a lucky bugger! I've got 2 of em!
Check out my Toy --> MudRunnerTD's GQ From the Ground Up
The only good thing about an 80 series is..... the front end?? Wrong!!, the Engine?? Wrong!! the Full Time 4WD system?? Wrong!! Its the NissanPatrol.com.au stubby holder fitted over the transfer lever.
WARNING: Towballs used for recoveries can, and do kill people and damage property.
So the rod is bent as well? Did he mention how the bearing had failed? Spun, collapsed etc?
They haven't taken the motor out yet = head off , #4 piston has vertical slop - big end bearing squashed or spun .... anyway the piston has left its imprint on bottom of head ...
quotes , $19K with new short motor - this includes new head / new pump /new turbo/ new radiator to secure warranty . Exchange motor (recond) $9K , plus new pump/new head/new turbo/new radiator to secure warranty - plus labour ... so around $16K .... am going to look for a second hand motor from wreckers . Interestingly the mechanic said "a lot of people are going back to petrol because of the cost of diesel repairs ...." mechanic said they could do bottom end repair - but there is a risk the crank has been damaged and they would not be able to tell and recommends a machine shop to do that work.
The TD42 is in my 2005 GU Patrol ST ute ...
Had a look at engine , and as mechanic said - top of #4 looks 'washed' clean , both mechanics there are of the opinion that something caused the injector to stay open and flooded cylinder ? Injector now looks to be just fine ....
Last edited by boke; 16th July 2014 at 08:39 PM.
There should be fuel mixed in with the oil if that happened. It might have just spun a bearing causing the top of the piston to hit the head. A full rebuild kit is anywhere from $1,200 to $2,000 that's with new linners & new pistons. secondhand crank that can be linished $100-$300 new head around $,1000 + labour. Wouldn't bother with a new turbo, radiator water pump etc etc
boke (17th July 2014), MudRunnerTD (17th July 2014)
Drop the sump. Check the crank before it goes too far into quoting replacement gear.
Id rebuild. 2k for a kit. 1k machine work. Say a day to r + r engine. 2 days to strip and build you engine. Say a week worst case. 5k in labour. Drive away at 8k. Set of injectors, radiator flush, oils, coolant, still under 10k. I think your mechanic is expensive haha.
MudRunnerTD (17th July 2014)
Sound a bit like "would you like fries with that" !! Guys are doing TD42Ti conversions in Vic from blown up ZD30s drive in drive out for under 20k. Your quote and list of New parts seem excessive to say the least. If your mechanic is telling you that "allot of people are going back to petrols" maybe find another mechanic for a second opinion. They are lining up here to do the TD42 conversion.
I don't understand why they are selling you a New Pump, new turbo, new radiator,........ Unless your looking for a hot rebuild chasing RWKW with a big pump and big HP then it seems excessive?
Just my 2c mate, you have a great car and the "last of the TD42s" holds its value. Your experience at 170,000 is very very unusual! Chasing a second hand engine with under 300,000 to drop in would be value even. Don't jump off the deep end just yet.
Its a Nissan! =====> Its a Keeper!! ....... Got a TD42 in it BONUS!!
Check out my Toy --> MudRunnerTD's GQ From the Ground Up
The only good thing about an 80 series is..... the front end?? Wrong!!, the Engine?? Wrong!! the Full Time 4WD system?? Wrong!! Its the NissanPatrol.com.au stubby holder fitted over the transfer lever.
WARNING: Towballs used for recoveries can, and do kill people and damage property.
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