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1hz cracked head
Moderators: toaddog, Elmo, DUDELUX
1hz cracked head
hey lads
whats the best way to stop a 1hz with turbo from cracking its head
whats the best way to stop a 1hz with turbo from cracking its head
Mine had 8psi and cracked its head. Precombustion chambers expand and contract at different rates to the rest of the head and make it crack. Well documented and has happened to many 1hz's even stocko engines. And no there is no way to stop it that I could find so I ditched it and learnt to never get a indirect injection again.
Mine has a perfect cooling system the same radiator is keeping my Ls1 cool without any probs with no need for a fan at idle.
Mine has a perfect cooling system the same radiator is keeping my Ls1 cool without any probs with no need for a fan at idle.
More Suzuki parts going to the big Suzuki Heaven in the sky!
No offense but its always the same shit from you...Kitika wrote:Mine had 8psi and cracked its head. Precombustion chambers expand and contract at different rates to the rest of the head and make it crack. Well documented and has happened to many 1hz's even stocko engines. And no there is no way to stop it that I could find so I ditched it and learnt to never get a indirect injection again.
Mine has a perfect cooling system the same radiator is keeping my Ls1 cool without any probs with no need for a fan at idle.
Keep your cooling system in check (fit a more accurate and sensitive temp gauge)
Fit a pyrometer
Keep sustained EGT below 550
Keep boost below 15psi
Service regularly
Use good oil
Intercool it if you can
Do all this and youll be able to keep it for years to come.
I give my 1hz a hell of a time all the time, 25psi, lots of fuel, big cooler, revs to 5000rpm. Driven it like that for a year now and its just as good as it was then.
Locktup4x4.com.au - For all of your hardcore gear
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Outlaws4x4.com
Hi all...Spot on,these engines just cant hack haveing a turbo on long term, driven in the real world,moreso if you use them as a work horse and or tourer with trailer long trips extreme temps up and down the great divide.Another problem is the the top ring grove in the pistons flog out and gets wider due to pistons not ment for turbo.Then you get gearbox problems where they dont live as long as they should.Kitika wrote:Mine had 8psi and cracked its head. Precombustion chambers expand and contract at different rates to the rest of the head and make it crack. Well documented and has happened to many 1hz's even stocko engines. And no there is no way to stop it that I could find so I ditched it and learnt to never get a indirect injection again.
Mine has a perfect cooling system the same radiator is keeping my Ls1 cool without any probs with no need for a fan at idle.
PEACE...
x2. There are plenty of turboed 1HZs running around without any issues at all.Z()LTAN wrote:No offense but its always the same shit from you...Kitika wrote:Mine had 8psi and cracked its head. Precombustion chambers expand and contract at different rates to the rest of the head and make it crack. Well documented and has happened to many 1hz's even stocko engines. And no there is no way to stop it that I could find so I ditched it and learnt to never get a indirect injection again.
Mine has a perfect cooling system the same radiator is keeping my Ls1 cool without any probs with no need for a fan at idle.
Keep your cooling system in check (fit a more accurate and sensitive temp gauge)
Fit a pyrometer
Keep sustained EGT below 550
Keep boost below 15psi
Service regularly
Use good oil
Intercool it if you can
Do all this and youll be able to keep it for years to come.
I give my 1hz a hell of a time all the time, 25psi, lots of fuel, big cooler, revs to 5000rpm. Driven it like that for a year now and its just as good as it was then.
The key is maintenance and monitor your temps.
No, 1hz's are not designed to have a turbo... but they run a shit load better with one. They can also handle them perfectly as well.
x2 to what Zoltan said..
I've had a turbo 1hz for over 100k on mine, starts first time everytime.. no problems at all. and for a 3.1t cruiser, it hauls arse.
I keep my EGT's below 520 post turbo and keep Penrite in it every 5k religiously..
Not all engines are created equal, ive had a mazda astina that missed serviced and was overheated and ran for 520k before it needed a new head gasket.. but still the whole engine was fine..
x2 to what Zoltan said..
I've had a turbo 1hz for over 100k on mine, starts first time everytime.. no problems at all. and for a 3.1t cruiser, it hauls arse.
I keep my EGT's below 520 post turbo and keep Penrite in it every 5k religiously..
Not all engines are created equal, ive had a mazda astina that missed serviced and was overheated and ran for 520k before it needed a new head gasket.. but still the whole engine was fine..
Feass wrote:No, 1hz's are not designed to have a turbo... but they run a shit load better with one. They can also handle them perfectly as well.
x2 to what Zoltan said..
I've had a turbo 1hz for over 100k on mine, starts first time everytime.. no problems at all. and for a 3.1t cruiser, it hauls arse.
I keep my EGT's below 520 post turbo and keep Penrite in it every 5k religiously..
Not all engines are created equal, ive had a mazda astina that missed serviced and was overheated and ran for 520k before it needed a new head gasket.. but still the whole engine was fine..
how does changing the oil stop the head cracking????
what does a mazda astina have to do with a diesel 1hz with precom chambers???
[/b]1HZ + turbo = CRACKED HEAD BOOM!!!!!!!!!!!!!
you cannot seee your head cracking or know about it till its cracked all the way and you cant see that till its not bolted on!!!
80 series 1980 hilux cab supra twin turbo engine
1hdfte 80 series
LHD fz 80 series GX
1hdfte 80 series
LHD fz 80 series GX
I have no doubt that my 1hz will give up the ghost one day the way i drive it. Saying that any engine would do the same.thrashlux wrote:yep agreed more young playersZ()LTAN wrote:same shit, different day....
ready to learn the hard way
give em a couple of years they to will know the truth
Even if my engine blew up tomorrow it would have still been worth it.
1HZ + decent turbo + 25psi + awesome intercooler = ShortyIQ HELL YEAH!
Locktup4x4.com.au - For all of your hardcore gear
Outlaws4x4.com
Outlaws4x4.com
well i have 2 toyota 4.2 diesels in my shed
a 1HZ turbo
a 1HDFTE from 100 series
have a guess which one is in the truck? and which one has got wasp nests in all the bolt holes ?
a clue the one that goes shit loads better and uses less fuel doing it
another clue it has 4 valves per cylinder and direct injection with no precom chambers to crack the head
a 1HZ turbo
a 1HDFTE from 100 series
have a guess which one is in the truck? and which one has got wasp nests in all the bolt holes ?
a clue the one that goes shit loads better and uses less fuel doing it
another clue it has 4 valves per cylinder and direct injection with no precom chambers to crack the head
80 series 1980 hilux cab supra twin turbo engine
1hdfte 80 series
LHD fz 80 series GX
1hdfte 80 series
LHD fz 80 series GX
Changing oil doesn't stop a head cracking, i didn't say that either. All i'm saying is that preventative maintenance and keep an eye on things will prevent premature cracking of the heads due to turbos. No doubt adding a turbo will decrease the engine life, but if its done properly, it will be a marginal difference.
And in regards to the Astina example. Not all engines are created equal, mate mine has a GQ Patrol that shat itself at 295k, stock 4.2 N/A diesel that had been serviced by a fanatic all its life. Just because you add a turbo, doesn't mean that you're head is going to crack the pre co chamber, there are alot of variables that are involved. As i said, mine runs fine at 220k, and its had a hard 220k.
And in regards to the Astina example. Not all engines are created equal, mate mine has a GQ Patrol that shat itself at 295k, stock 4.2 N/A diesel that had been serviced by a fanatic all its life. Just because you add a turbo, doesn't mean that you're head is going to crack the pre co chamber, there are alot of variables that are involved. As i said, mine runs fine at 220k, and its had a hard 220k.
you people are retarded...
Ur missing the whole point.
Petrol is gay
Basic engine dynamics are awesome
If something goes wrong with my 1HZ out in the bush there is a 99% chance i can fix it then and there.
While your there scratching your head with yours ill be back on track.
My turbo 1hz is plenty fast enough... Faster than a 4.5 anyday with less spent on it and a whole cheaper package.
Ur missing the whole point.
Petrol is gay
Basic engine dynamics are awesome
If something goes wrong with my 1HZ out in the bush there is a 99% chance i can fix it then and there.
While your there scratching your head with yours ill be back on track.
My turbo 1hz is plenty fast enough... Faster than a 4.5 anyday with less spent on it and a whole cheaper package.
Locktup4x4.com.au - For all of your hardcore gear
Outlaws4x4.com
Outlaws4x4.com
hate to piss on your parade, but when something goes wrong with a 1hz there's no chance you'll be fixing it in the bush. People buy them because they are reliable, not easy to fixZ()LTAN wrote:you people are retarded...
Ur missing the whole point.
Petrol is .
Basic engine dynamics are awesome
If something goes wrong with my 1HZ out in the bush there is a 99% chance i can fix it then and there.
While your there scratching your head with yours ill be back on track.
My turbo 1hz is plenty fast enough... Faster than a 4.5 anyday with less spent on it and a whole cheaper package.
About the only thing you could fix is a clogged fuel line from bad diesel. Even then you'll likely need access to an air compressor, and clean fuel.
The worst part about being told you have Alzheimer's, is that it doesn't just happen once.
try fixing a cracked head up cape yorkZ()LTAN wrote:you people are retarded...
If something goes wrong with my 1HZ out in the bush there is a 99% chance i can fix it then and there.
or a stuffed injector pump
both these happend to my 1hz while i had it
it was a POS
with regard to fixing on the track
old timers said the same thing when efi cars came out
how many people do you see driving around with carbies these days
i see a lot less cars broken down these days because of the way stuff works now no mecanical parts to wear or stick
if we were all like you the whole world would be driving around in HQ holdens with a red six in them yeah they are really reliable well people did think so at the time
and you can drive efi diesels under water as long as the water does not reach the top of the dash inside the car
if that is the case the thing is floating down stream anyhow
the engine is water proof it has no hi tension electronics
80 series 1980 hilux cab supra twin turbo engine
1hdfte 80 series
LHD fz 80 series GX
1hdfte 80 series
LHD fz 80 series GX
Hi all...No doubt about a 1HZ being a great engine.Fair enough,you can get them going with a turbo[like any other engine].But its greatness soon becomes lost when you turbo them.Its like those 3 litter Nissen diesel engines nicknamed the "Hand Grenade"[a fair comparison],Alot of fellas think they are great and others think there shit.It just depends what end of the stick your on with these engines.The same goes with the 1HZ turboed,While the engines going and everythings OK everybody is happy.But when they give up,The feelings become different.
The factory DI turbo engines are just so much better,Not only do they go better they do it with much more reliability.Why waste your money and time on a 1HZ.
The factory DI turbo engines are just so much better,Not only do they go better they do it with much more reliability.Why waste your money and time on a 1HZ.
PEACE...
Yeah that's the killer, price! A conversion with a rebuilt motor and turbo 10k+ and to buy the factory turbo version is more than 10k plus no live axle in 100 series .. There are heaps of charged 1HZ's around, properly set up and used sensibly they will last years.
I'm not quitting drinking, I'm retiring at the top of my game - sporting comeback likely.
try fixing a cracked head up cape yorkthrashlux wrote:Z()LTAN wrote:you people are retarded...
If something goes wrong with my 1HZ out in the bush there is a 99% chance i can fix it then and there.
or a stuffed injector pump
both these happend to my 1hz while i had it
it was a POS
with regard to fixing on the track
old timers said the same thing when efi cars came out
how many people do you see driving around with carbies these days
"I do my XD with the 393 stroker has a 950 holley on it. And the 351 in my fj45 has a holley had EFI its to hard to blow fuel into a fuel injector when a fuel pump dies."
i see a lot less cars broken down these days because of the way stuff works now no mecanical parts to wear or stick
""See just as many late model efi cars on the back of tow trucks mate look around.""
if we were all like you the whole world would be driving around in HQ holdens with a red six in them yeah they are really reliable well people did think so at the time
and you can drive efi diesels under water as long as the water does not reach the top of the dash inside the car
if that is the case the thing is floating down stream anyhow
the engine is water proof it has no hi tension electronics
A std 1HZ will crack a head without a turbo the main reason is because people dont maintain the injectors and valve clearance its heat related cracks dont just happen cause the engine is crap. All pre-com chambers will crack they get hot and are glowing 95% of the time the engine is running that heat is then transfered into the cylinder head so if you have a lean cylinder it will get hotter and the rest of the head has to compensate with a turbo you need to be on top of exhaust temps and maintain injectors more often.
Plenty of 1HZ's with over 500 000k's on them i got one and it goes harder then most ive driven even some with turbos. I spent plenty of hours fitting and tuning 1HZ's with turbos if you want anything to survive you have to look after it you must keep an eye on temps and oil pressures dont just pedal it like you stole it. If you stole it you wouldnt be worried bout fixin it when it blows up you just burn it and walk home.
Every engine has a weak link
I'm not stuck I'm over here!
Watch where you driven!!!
Watch where you driven!!!
so if you have a lean cylinder it will get hotter and the rest
Ummm, I think that is wrong, if you have a lean cylinder in a diesel it would be cooler, as more fuel make more heat, less fuel makes less heat.......
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