air in fuel - fit a lift pump and then wait for where the drips come from

 

so you recon air in fuel? i have read pretty much every thread on every forum google can find and there were a few who said air in fuel fixed it for them. others said injectors, guys at work didnt remember what a pre combustion chamber was :roll

my plan when i get home from work, fit the lift pump at the tank (like everyone said from the start) and replace the steel line (temporary) going to a new larger donaldson filter.

 

if its like a missfire on one cylinder every now and then and a puff of white smoke just after the missfire until it gets warm thats what mine use to do. after reading and reading on here i found out that advancing the timing fixes it

sorry just read again timing is already advanced :-(

 

Timing is well and truly advanced yes. I'm liking the air idea and ill be able to check it out on Monday.

 

My vote is air in fuel line aswell

 

righteo, ill have to check it out then, no excuses anymore, 2 others saying air...

 

Our 3.0L was doing the same thing. Blowing white smoke intermittently. Rough for about 3-5 seconds on start up. No overheating. No oil/water mixed. Turns out the white smoke that has no smell was burning glycol. One head w00ted.

 

Yeah, that sucks and was a concern at first, then the wind blew the smoke my direction and it is raw unburnt diesel smoke killing the plants behind where i park it. whoops

 

Sounds/smells like you have a leaky injector/s,not atomising fuel,just hosing it in so it isn't burning cleanly,when you rev it the leak is less apparent. I don't see air being involved because air in the injector will cause a miss,not smoke.
When you start it cold,crack each injector line in turn and see if the smoke ceases-there is the culprit [you might have to wait till the accumulated fuel burns off].
Worked with an old Leyland,morning start filled the place with white fuel fumes,exchange injectors,fixed.
Cheers,G.

 

WELL!!!!!

Am running a line straight from tank to pump and its still doing it, no change. started changing plugs and the front 3 came out easy, the back 3 were allready broken. the stem is still there but the hex has snapped... might have found the problem, except the cruising and stuttering bit.

so its off to a mechanic tomorrow as i dont have the tools here for removing them and dont have the space if the head needs to come off. im a bit pissed at the situation because ive tested them all previously*and they were great. maybe someone else ive had work on the engine has got a bit aggressive with them?

GRUMPYONE, yeah, injectors is now higher on the list as the air leak didnt seem to pan out the way i expected. the problem is the injectors are not even 5000k old.

 

the head is coming off, no. 5 plug came out with an easy out and oxy, no. 6 crumbled and no. 4 is stuck solid. so the head is getting removed... itll also get a bit of port matching while its off at the machine shop. might end up better that this has happened after all as itll knock out cracked head and head gasket as possible causes or other issues.

 

Hey I had the same problem with my GU I changed the injectors and still did it! Also got told was a bent Conrod and motor was gone but did believe them! In the end it was my injector pump was all flogged out! Spent $2000 on it haven't had any trouble since! Hope that is some help!

 

nan-nan, the problem is that my injector pump was replaced about 5000k ago, not just rebuilt, it was replaced with another and the problem seemed to get better. im really hoping that the glow plugs have caused alot of these issues as its costing me alot of money to figure out now.

 

Ah ok yeah the glow plugs were another I was told to look at! Hope you find the problem! Let me know when you do!!

 

Even better news today, hair line cracks found in head... mechanic said there was a **** tonne on corrosion in the head but thought it would be ok.... i could have got a new head if i had of known that.... im a little pissed now. seems im not meant to have a TD42 in a patrol as ive had nothing but bad luck with every one ive had...

gonna start collecting for a new/old engine to rebuild and put in or a conversion... xr6, tb48, ls2, 350 4 bolt, i dont know yet. ill have to wait and see. I have a bare LS1 in good nick at home, but it needs all accessories etc. will be a while till the engine gets changed (unless i have to soon) as i dont have half of my tools required for this type of work, specially a rebuild.

 

Where you live because i'm chasing a fcuked TD42 head (free of cause) & tappet cover

 

i live in townsville and you cant have my head for free

Got the invoice today from the repairer, not happy, $600 more than quoted, this car is cursed i swear, this is not a fight i feel like having at the moment, mechanics word vs mine.

oh yeah, and i have bought a GU4 4.8 st-l so if anyone wants to buy the engine feel free to make an offer (no pump, injectors or turbo setup)

 

hey mate, I seem to be having the same issue with my GU. How much was your head reco and injectors?

 

Vehicle;
88/9 GQ
TD42 330,xxx kays
KM diesel race fuel pump (same as they built for christian truzs back in the day) compensated
recoed matched injectors to suit pump (was told they were anyway, i didnt fit them myself)
T3 garrett turbo (old, but surprisingly still strong and doesnt leak much oil)
donaldson airbox and 4 inch snorkel
FMIC (large and works well)

History;
bought the car and it ran fine, noisy tappets but that was an easy fix
previous owner had just done all oils and filters
The day i got it i replaced all oils and filters anyway
glow timer and solenoid work fine as do the plugs
loose approx. 1 litre of oil every 5,000km (have only had it for 6,000)
uses about 100ml of coolant in the same amount of time (it has a minor leak that comes and goes from one of the heater hoses)
oil doesnt have fuel or coolant in it
coolant doesnt have oil in it
no bubbles in coolant
blow-by isnt excessive

Ok, thats sorted. Ill also start by saying im a diesel fitter so have a pretty good idea what im on about (even though im in mining, i still know how it all works etc.)

so story is, since the first few days i had the car (october 2012) about 10 seconds after i start the car it coughs, splutters, drops revs by 200rpm and blows wicked white smoke out the back. the smoke is fuel, im sure of it (remember, fitter) and heres the weird bit, if i give it a big rev, right up in the revs, it goes away, hot or cold, doesnt matter. Then while driving, if ive sat on the same revs (normally about 2200 will do it most consistently) and i put my foot to the floor it will stumble slightly before going. It doesnt loose power (except when cold) and when it stumbles i dont think it blows a puff of white.
ive changed the fuel filter a few times and changed nothing also bypassed the filter to make sure that wasnt the problem and the race pump seemed to make it worse. when i first fitted the pump i didnt change the injectors as i have seen the pumps work fine without doing it (i know not optimal). When i got it tuned properly at a mechanic, he changed the injectors as 1 was leaking and 2 had locked up a bit, so they are now the matched injectors... i stress that i didnt change them so never saw them before going in.
the pump timimg is .76mm at the pump builders request, and it was checked by my mechanic (who is mates with the pump builder)

Ok, I have ordered a new filter setup and have hose at home to replumb the fuel line from front to back to ensure it isnt an air leak as its on my suspect list and one of the easiest to fix.
next guess is injectors are faulty, i dont want it to be this as i live in townsville now and dont know a good place nearby to get testing done and sending them away could mean a long wait and/or more **** work done that needs to be sent back and checked again.
injector seals is another thought, but the fact it goes away after a rev makes me think otherwise.
head/head gasket, again not really loosing coolant, no bubbles in rad etc.
worn rings, goes away when revved, comes back randomly, not excessive blowby
bent rod, still goes hard, engine sound is alittle off, but still sounds like a td42 with lots of fuel/boost and not much exhaust
fuel pump, was there before the rebuild and seems that the pump rebuild has made it worse slightly (maybe just more noticeable)
most other things are out because it runs fine after a big rev, cold or hot, and sometimes it doesnt do it at all.

im over it and its embarrassing in public as the car looks like a piece of **** to start with and it is really loud to rev it everytime its started to make it go away.

anyone? tough diesels? dieseltec?

Mate, I think you’re getting a bum steer! Yes you are getting air in your fuel!
It is coming though your injection pump shaft!
Replace the seal!!!!!

 

That was from 2013 and he hasn't been back since 2015 so I don't think he's gonna see the reply.