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Location:
N/E Vic
Registered:
January 2004
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1jz Cressida died..HELP :(
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Wed, 24 March 2004 12:00
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Okay guys...im pretty lost on this one.
Dropped some mates off at home after work today, stalled her up a little on takeoff, slow down for next corner about 50m up road, turn corner, up to about 4000RPM, car starts sounding like it did when i ran it with no exhaust and basically immediatly dies, roll to side of road. Okay...quickly checked I/C Pipework, seems okay (that wouldnt stop the car form running would it?) didnt have much time to do anything else cuz i had to goto cadets. Car will start after coaxing but dies pretty well straight away even if you give it heaps of throttle. Induction noise seemed louder thru the pod than normal but this maybe due to the fact that ive never stood in front of it when its been revved up lol. So umm yeah, im running a walbro 500hp pump, full tank of optimax, stock 7m-GE zorst (could the cat have collapsed? or its possibly full of turbo parts?), stock IC and HKS pod. Any help would be much appreciated.
Cheers,
Troy
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Location:
newcastle
Registered:
June 2002
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Re: 1jz Cressida died..HELP :(
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Wed, 24 March 2004 20:58
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too many possabilities but chnage the plugs .once they foul bad 1js run like a victa on a bad bay .
At summerants one year a mate spent a full day checking everything wouldnt idle or run or sometimes even start
.changed plugs started first time no probs ran better than ever
use ngk BKR6es gap to 0.8 mm changes every 5-10000klms
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Location:
Sydney
Registered:
March 2003
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Re: 1jz Cressida died..HELP :(
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Wed, 24 March 2004 21:18
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Damn, hope its nothing serious!
Im opting for this engine for its tuning potential, and most importantly, reliability. They are reliable arnt they guys??
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Location:
Gold Coast
Registered:
May 2002
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Location:
N/E Vic
Registered:
January 2004
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: 1jz Cressida died..HELP :(
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Thu, 25 March 2004 08:41
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That is the timing belt tensioner
If that was near the car when it died, i'm not surprised
Its kinda vital for keeping the timing belt tight.
Find out why it fell out, put it back in, and away you will go
(This is after you have reset your cam timing of course)
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Location:
Brisbane
Registered:
May 2002
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Re: 1jz Cressida died..HELP :(
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Thu, 25 March 2004 09:40
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Note that it's not as simple as re-installing the tensioner; the belt has obviously slipped so you're going to have to pull the timing cover off and align everything properly again. It's a bitch of a job but with enough patience you should be able to manage it.
Also check the belt for damage; it might need replacing.
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Location:
NSW, East Coast
Registered:
July 2003
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Re: 1jz Cressida died..HELP :(
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Thu, 25 March 2004 10:06
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| draven wrote on Thu, 25 March 2004 20:30 |
edit: you're lucky the 1jz is a non-interference engine. if it were a nissan engine, you'd more than likely be looking at a full rebuild!
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Gotta love Toyota's.
I would change the timing belt anyway, that way you know its done. Change the spark plugs while your at it.
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Location:
Wollongong
Registered:
March 2003
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Re: 1jz Cressida died..HELP :(
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Thu, 25 March 2004 14:11
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sheeeeet! 
best of luck with it mate, i love my 1j it sent shivers up my spine!!!
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Registered:
June 2002
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Re: 1jz Cressida died..HELP :(
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Thu, 25 March 2004 21:37
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Interesting that someone said they are non-interference engines because:
I have 2 1JZ's (a spare and one in the car).
While they were both out with cam belts off, on the spare one you could turn the crank over fine (non-interference).
On the engine I have got in the car at the moment, when it was on the engine stand with no cam belt I did the same thing and it could not turn over all the way, so I thought it must be some of the valves stopping it (interference).
Is it only non-interference on stock cams?? Would higher lift cams cause interference??
Strange!!!
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Location:
N/E Vic
Registered:
January 2004
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Re: 1jz Cressida died..HELP :(
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Fri, 26 March 2004 05:21
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i would have to say that the clearance between the pistons and valves is very small...most likley something like .050 or so (just a guess) and any cam wilder than stock would cause it to hit...I just looked at where the tensioner came from, it seems that one of the bolts has removed itself, causing the other to load up....which led to it shearing off....lucky there's plenty left to remove with some vice grips 
Oh and i did replace the belt when i got the cut (about 2000km old) =\
Should i replace it again? And also, what parts am i likley to have lost apart from the tensioner?
Cheers guys,
Troy
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at finding the tensioner on the ground. Good work!