new genuine 1HZ required
Submitted: Tuesday, Dec 04, 2007 at 23:06
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Harrow
If anyone where the current deals are going, on a new genuine 1HZ short or long motor, please let me know.
The old one did not take too kindly to the compensated intercooled Safari Turbo running at 15 PSI boost
Expired at 178,000km (70,000 kM 3 yrs after turbo install)
always felt that 15 psi was too much, but the boys at Motsons said it would be ok.
Well aparently not, #6 piston split and holed,
bore scored, all other pistons cracking.
Thanks
Reply By: Steve from Top End Explorer Tours - Tuesday, Dec 04, 2007 at 23:27
Tuesday, Dec 04, 2007 at 23:27
Hey
harrow.
I have a 1hz sitting on an engine stand, I pulled it out of a wreck 15 months ago.
The speedo said 178000 km but the speedo sensor didn't work when I tried it on my troopy I don't think it would have been to far off though.
It doesn't have a fuel pump, power steering pump, exhaust or inlet manifold as I have taken these off, there are other little bits and pieces missing, but 95 % complete top to bottom.
It may be used to rebuild a motor with a bit of work.
If you organize it to be picked up and freighted to where ever you are, you can have it, I was going to rebuild it but I am going to up grade cars instead.
The thing is I'm leaving on holidays come next Monday.
Cheers Steve
AnswerID:
275042
Reply By: Andrew from Vivid Adventures - Tuesday, Dec 04, 2007 at 23:50
Tuesday, Dec 04, 2007 at 23:50
CMI Toyota in
Adelaide have one - a newy, in the lobby of their spares dept that has been there for years... they might to a deal on it...
I've forgotten what $ they had on it.
Cheers
Andrew.
AnswerID:
275044
Reply By: Rossco td105 - Wednesday, Dec 05, 2007 at 10:20
Wednesday, Dec 05, 2007 at 10:20
Hey there
Harrow,
Just wondering if you had a boost gauge and exhaust pyrometer installed on this system?
Thanks,
Ross.
AnswerID:
275070
Follow Up By: Harrow - Wednesday, Dec 05, 2007 at 12:44
Wednesday, Dec 05, 2007 at 12:44
Yep
Digital boost and EGT (over-read by 2 PSI, would max at 17psi, therefore actual max was 15psi)
Pre turbo EGT never went above 460oC working hard on
the beach or big hills
You knew the intercooler was working then, as it threw hot air onto the A/c core ant the A/c would start to warm, untill you lifted the foot.
Cheers
Harrow
FollowupID:
538781
Follow Up By: Drew - Karratha - Wednesday, Dec 05, 2007 at 12:49
Wednesday, Dec 05, 2007 at 12:49
I have a non-turbo 1HZ and the aircond would warm whenever the engine temp got up a bit (there is a heat sensor that cuts the aircond out at a certain engine temp). I thought about disconnecting the sensor but decided to use it as another gauge of how hot the engine is...
Maybe it wasnt the intercooler???
FollowupID:
538783
Follow Up By: Member -Signman - Wednesday, Dec 05, 2007 at 13:15
Wednesday, Dec 05, 2007 at 13:15
G'day
Harrow
You say you have a 'pre turbo' EGT reading not more than 460.
I'm no expert here, but I understand pre turbo temps are generally higher than EGT fitted after turbo. And after turbo EGT is generally 500 to 550.
FollowupID:
538789
Follow Up By: Harrow - Wednesday, Dec 05, 2007 at 17:39
Wednesday, Dec 05, 2007 at 17:39
Signman
with my setup intercooler etc preturbo temps, which do read higher than post were
100kph 260oC
120kph 320oC
Under high extended work load 460oC, so I feel the intercooler was doing its job
Now it is out I will check the calibration on the thermocouple, to ensure it was reading right.
FollowupID:
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Follow Up By: Rossco td105 - Wednesday, Dec 05, 2007 at 20:10
Wednesday, Dec 05, 2007 at 20:10
G'day
Harrow,
Your EGT temps sound really low. My vehicle rune around town at about 320 to 360 degrees Celsius (no load), which increases up to 440 to 460 when accelerating, and can spike at nearly 625 when going for an extended length of time at 110+Kph going up
hill.
Always interested in hearing "first hand experience" of detonated turbo 1HZ's and the reasons this occurs. I have had my fuelling/boost tuned with some degree of restraint, and wonder if something may have been amiss with your set-up?
Thanks for your reply,
Ross.
FollowupID:
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Follow Up By: Rossco td105 - Wednesday, Dec 05, 2007 at 20:13
Wednesday, Dec 05, 2007 at 20:13
Bugger,
Read the rest of the post and should have mentioned I have also had the injectors changed and added a fuel aneroid whilst in the tuning/setting up stages.
Ross.
FollowupID:
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Follow Up By: Harrow - Tuesday, Dec 11, 2007 at 01:06
Tuesday, Dec 11, 2007 at 01:06
Ok Guys
Checked the temps read by the EGT against a type K thermocouple and the EGT is very close.
Temps are oC
Actually the EGT overreads by 2%.
The EGT thermocouple is pre turbo on a split pulse manifold and its in the back bank, that is cylinders 4,5,6, you would think they would be the hotter
Cheers
Harrow
FollowupID:
539898
Reply By: Member -Signman - Wednesday, Dec 05, 2007 at 12:18
Wednesday, Dec 05, 2007 at 12:18
May not have been a turbo problem...most likely (for #6 piston to split & hole) a problem with injector spray pattern !!
AnswerID:
275095
Follow Up By: Harrow - Wednesday, Dec 05, 2007 at 12:50
Wednesday, Dec 05, 2007 at 12:50
Hi Sighnman
I am talking to a
well respected Turbo specialists at the moment re a rebuild who is of the same opinion re the 100 series HZ injectors and other components tolerance to turboing.
Harrow
FollowupID:
538784
Reply By: gilghana - Wednesday, Dec 05, 2007 at 16:57
Wednesday, Dec 05, 2007 at 16:57
Out of interest
Harrow (I was considering going down the turbo route) will you be turboing the new one?
AnswerID:
275143
Follow Up By: Harrow - Wednesday, Dec 05, 2007 at 17:43
Wednesday, Dec 05, 2007 at 17:43
Yes
But going to a Turbo expert who knws the issues re the 100 series HZ and set it up for reliability.
He was on the shortlist on the original install, and forwarned exactly this.
Harrow
FollowupID:
538832
Reply By: GO_OFFROAD - Thursday, Dec 06, 2007 at 15:36
Thursday, Dec 06, 2007 at 15:36
10-11 psi is all the 1hz should run....... ever.
And even with proper servicing, oil changes, correct tune, intercooler, etc etc, dont expect more than 250k km from one that is turbo charged.
AnswerID:
275283
Follow Up By: Big Woody - Tuesday, Dec 11, 2007 at 06:52
Tuesday, Dec 11, 2007 at 06:52
My 1990 1HZ has clocked over 330K km recently and has had an aftermarket turbo fitted since the day it rolled off the showroom floor.
It runs at 10psi and is as quiet and smooth as it ever was. It doesn't use a drop of oil between changes and hopefully has a few good years left in it yet.
I don't know how much difference it makes but good quality synthetic oil changed regularly has always been used in this motor and may have something to do with it's longevity.
My brother recently traded his 1HZ 80 series non-turbo which had 700K km on the clock. The secret - I don't know?? He thrashed the car since new but regular servicing may be the key.
FollowupID:
539900