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Location:
nsw
Registered:
May 2002
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++ Help reqrd BADLY - 1j crank pulley (with toyota quotes) ++
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Tue, 09 August 2005 23:52
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Hey guyz,
ran a search and couldnt find anything on here, just got a questoin, on the weekend gave the car abit of stick, and a pulley fell off, on closer inspection its the bottom crank pulley, but the harmonic balancer is stil connected to the engine. do i need a whole new assembly or a new gasket from toyota..... Really need some help here guys.
ta
steve
0402339665
MOD EDIT - THIS ISNT A WTB THREAD, PLEASE DONT POST MISLEADING TITLES!!!!
If you wanted a WTB thread, this is the wrong section.
[Updated on: Wed, 10 August 2005 01:05]
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Location:
nsw
Registered:
May 2002
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: ++ WTB: BADLY 1j crank pulley help ++
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Wed, 10 August 2005 00:12
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You need a new pulley. The vulcanized rubber has come apart.
Options are to buy a solid billet one or get a new one from Toyota.
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Location:
Lost in the K hole
Registered:
May 2002
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Re: ++ WTB: BADLY 1j crank pulley help ++
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Wed, 10 August 2005 00:13
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yup, thats fucked
need a whole new balancer (2 metal parts normally bonded by rubber mid section)
i guess you put the gear puller on the wrong bit...
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Location:
nsw
Registered:
May 2002
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Re: ++ WTB: BADLY 1j crank pulley help ++
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Wed, 10 August 2005 00:15
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incorrect, it fell off whilst driving.
where can i start looking for a billet one, and would penrith toyota have a replacement ?
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Location:
Lost in the K hole
Registered:
May 2002
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Re: ++ WTB: BADLY 1j crank pulley help ++
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Wed, 10 August 2005 00:16
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mustve been pretty shagged...
penrith toyota would be your best first point of contact
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Location:
Lost in the K hole
Registered:
May 2002
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Re: ++ WTB: BADLY 1j crank pulley help ++
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Wed, 10 August 2005 00:20
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NFI
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Location:
nsw
Registered:
May 2002
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Re: ++ WTB: BADLY 1j crank pulley help ++
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Wed, 10 August 2005 00:21
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billet sounds good, ive got the money all i needs a direction !
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: ++ WTB: BADLY 1j crank pulley help ++
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Wed, 10 August 2005 00:23
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Take pulley (parts) to an engineer. Get them to spin you a replica in chromemoly or 6061 aluminium. Make sure they index the timing mark for you too.
It will probably be cheaper than a new pulley.
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Location:
Lost in the K hole
Registered:
May 2002
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Re: ++ WTB: BADLY 1j crank pulley help ++
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Wed, 10 August 2005 00:24
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id even go 7075T6 given the flogging the keyway on these things seems to get
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Location:
nsw
Registered:
May 2002
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Re: Help reqrd BADLY - 1j crank pulley
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Wed, 10 August 2005 00:50
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prefer to just buy one, or get a direct replacement.
thanks for the help and direction guyz.
steve
0402339665
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Location:
nsw
Registered:
May 2002
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Re: ++ Help reqrd BADLY - 1j crank pulley (with toyota quotes) ++
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Wed, 10 August 2005 01:07
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toyota castle hill $363 gts incl
trade : $308
toyota penrith $406.55
no trade price given.
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: ++ Help reqrd BADLY - 1j crank pulley (with toyota quotes) ++
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Wed, 10 August 2005 01:50
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My billet one cost me $150.
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Location:
nsw
Registered:
May 2002
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Re: ++ Help reqrd BADLY - 1j crank pulley (with toyota quotes) ++
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Wed, 10 August 2005 01:54
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can u get anotha 1 made ?
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Location:
Brisbane
Registered:
May 2002
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Re: ++ Help reqrd BADLY - 1j crank pulley (with toyota quotes) ++
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Wed, 10 August 2005 02:27
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Are there potential issues with harmonic vibrations when using a solid billet pulley?
BTW this seems to be a common failure on JZ engines, I've personally seen quite a few just like this.
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Location:
Adelaide, SA
Registered:
May 2002
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Re: ++ WTB: BADLY 1j crank pulley help ++
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Wed, 10 August 2005 03:35
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| DeViL rOlLa wrote on Wed, 10 August 2005 09:40 |
this pulley
is meant to go onto this balancer...
how.........?
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That looks familiar! Mine did the exact same thing, although I didn't notice it for a while since the belt kept running on the rubber stump that was left!  Toyota toughness.
I bought a second hand one for $100 from an importer since I couldn't wait for a new one or to have one made up.
It's a common fault with the JZ engines, the rubber lets go of the pulley wheel. I found the pulley wheel stuck between the sump and plastic undertray...I thought where the hell did this come from? 
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Registered:
June 2003
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Re: ++ Help reqrd BADLY - 1j crank pulley (with toyota quotes) ++
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Wed, 10 August 2005 04:02
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There is a reason the crank pulley has a rubber mid-section. Be VERY careful getting a custom one made up. I'm building a JZ motor at the moment, and I noticed the rubber in my crank was starting to perish slightly. I did a bit of research into it with some very interesting results. You can go the all alloy crank pulley, but you need to make sure your motor is perfectly balanced to suit the new crank pulley. Even a slight imbalance and the motor will start to come apart in a major way. This actually happened to a number of blokes in the states running billet pulleys.
I don't even pretend to know the specifics of what happens, but I am told it's to do with a resonating frequency generated by the motor & crank pulley. Any of you guys seen that cool trick where you make a wine glass "sing" by running your finger around the rim of the glass? And then when you play that same note back at the glass at high enough volume, the glass shatters. Well it's supposed to be something like that. The rubber mid-section is meant to dampen this effect. I just want to clarify that this is all info explained to me by someone else, so I can't vouch for its accuracy. Can any professions here confirm or deny? ...rather than just spewing out what other people tell them like me 
Bottom line is, I went a bought a brand new one from MR Toyota. There's a mob that make an aftermarked one with a polyurathane insert so it's slightly stronger, and they will also reco your factory one with a urathane insert. If anyone wants their details I can dig it up.
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I Supported Toymods
Location:
Sydney
Registered:
December 2002
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Re: ++ Help reqrd BADLY - 1j crank pulley (with toyota quotes) ++
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Wed, 10 August 2005 04:47
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Yep thats what I heard too Joorsh.
Also these 1JZ pulleys seem very simple in design compared to the 3S ones. The 3S pulleys have little indentations where the rubber fills in so that the pulley isn't just two smooth rings like this.
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: ++ Help reqrd BADLY - 1j crank pulley (with toyota quotes) ++
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Wed, 10 August 2005 05:05
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The only issues have been a few cases of crank walk with high powered 2JZGTEs and auto. It would appear it has been blown out of proportion by the 16 yos on supraforums.com.
I have done a pile of kms with my billet pulley on the 2JZGE. No probs.
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Location:
nsw
Registered:
May 2002
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Re: ++ Help reqrd BADLY - 1j crank pulley (with toyota quotes) ++
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Wed, 10 August 2005 06:07
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joorsh, can u pls dig up that company's number for me, would b much appreciated.
ta
steve
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Location:
Adelaide
Registered:
January 2004
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Re: ++ Help reqrd BADLY - 1j crank pulley (with toyota quotes) ++
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Wed, 10 August 2005 15:14
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| gianttomato wrote on Wed, 10 August 2005 14:35 |
The only issues have been a few cases of crank walk with high powered 2JZGTEs and auto. It would appear it has been blown out of proportion by the 16 yos on supraforums.com.
I have done a pile of kms with my billet pulley on the 2JZGE. No probs.
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Maybe, maybe not.
For resonance to occur, the natural frequency of the pulley (determined by the weight and stiffness of the pulley) has to be the same as the frequency/frequencies produced by the engine. As a general rule of thumb, you want to keep the natural frequency of anything about 10-15% out of the range of the frequencies produced by the anything connected to it.
So, while a custom made pulley may run on an engine for years with no probs, another one of slightly different design or material may casue an engine to shit itself very quickly.
But hey, what do I know about JZ engines! I've only ever seen one JZ family engine in the flesh (or should that be metal?) and I've never been fortionate enough to own let alone modify one but the time will come...
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Location:
nsw
Registered:
May 2002
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Re: ++ Help reqrd BADLY - 1j crank pulley (with toyota quotes) ++
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Thu, 11 August 2005 02:23
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ross harmonic balancers have changed their name and location to ross balancers, blacktown
number 96761466
they can do billet replacements and are ( within the month ) goin to start makin polyurethanie replacement rubbers for these. wouldnt give me a price for either but was a nice enough fella.
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Location:
Newcastle
Registered:
July 2003
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Re: ++ Help reqrd BADLY - 1j crank pulley (with toyota quotes) ++
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Thu, 11 August 2005 03:13
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as far as harmonic issues has anyone had any expereiences with harmonic problems with the 4agze nevo pulleys ? these a solid 7075. slighty off topic i know but anyone known of issues ?
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