| Author | Topic |
|---|
Registered:
May 2004
|
|
1JZ top end rattle
|
Mon, 19 July 2004 07:44
|
 |
Hi,
I've got a Hilux with a 1JZ, the top end of the motor has started to rattle when idling, It sounds like some kind of tappet rattle, not a heavy clacking like a cam. I'm hoping its not too serious. Could anyone give me any pointers, are there any clearances that need to be set periodically ? Any help gratefully appreciated.
Thanks.
|
|
|
Location:
Brisbane
Registered:
June 2003
|
|
|
Registered:
May 2004
|
|
Re: 1JZ top end rattle
|
Mon, 19 July 2004 09:00
|
|
Hi mate, thanks for your reply.
"run some upper cylinder through the fuel and see if it helps at all"
I am in Thailand, could you tell me what this means. Sorry to sound stupid. Is it some kind of fuel additive ?
Thanks.
|
|
|
Location:
Brisbane
Registered:
June 2003
|
|
Re: 1JZ top end rattle
|
Mon, 19 July 2004 09:38
|
|
upper cylinder is an additive made by "nulon" and wynns - i dont know what brands you have over there!
You just buy it from any automotive store. Its in a 500ml bottle normally...you just add a whole bottle when you put your next full tank of fuel in!
|
|
|
Location:
Brisbane
Registered:
May 2002
|
|
Re: 1JZ top end rattle
|
Mon, 19 July 2004 09:49
|
|
1JZ's have buckets and shims (no lifter's) with the cam acting directly on the valve via the bucket/shim arrangement.
Your valve shim clearances might be out at a guess if the noise is quite quiet?
Cheers
Wilbo
|
|
|
Location:
sunny coast, qld
Registered:
October 2002
|
|
Re: 1JZ top end rattle
|
Mon, 19 July 2004 10:20
|
|
when did this noise start and what was the car doing at the time?
I also have a 1jz with a noise that sounds liks a tappet rattle and have checked heaps of things and still can't find it.
do a search for "1jz problem" and you can see what I have done to try and find the problem.
How quick is this tap compared to the revs? is there any other things strange with the engine like idle quality or compression?
|
|
|
Registered:
May 2004
|
|
Re: 1JZ top end rattle
|
Wed, 21 July 2004 08:19
|
|
Hi,
The car idles perfectly, and the sound is akin to a fast clicking. From what i can gather the noise does not disappear when the revs increase (ie. when oil pressure increases), it just becomes inaudible due to the noise of the engine and fan. Its a fairly "light" sound, and seems as though it originates from one of the cylinders towards the rear of the engine (ie. closer to the bulkhead). As I said, even at idle, the noise seems fairly "fast". it.
"Your valve shim clearances might be out at a guess if the noise is quite quiet"
If this is the problem, is it a relatively minor job that any workshop could do, or is it a lot more "involved" ? Finding a decent spanner over here is more than difficult.
Also, if left untreated, will this eventually lead to anything serious ?
Many Thanks Guys.
.
|
|
|
Location:
Brisbane
Registered:
June 2003
|
|
Re: 1JZ top end rattle
|
Wed, 21 July 2004 08:23
|
|
|
no it wont lead to anything major, but if you notice it gets worse..might be time to act accordingly!
|
|
|
Registered:
May 2004
|
|
Re: 1JZ top end rattle
|
Wed, 21 July 2004 08:36
|
|
I have just read Chris Davey's "1JZ problem" thread and bingo ! I would say my car has exactly the same symptoms. The only difference is mine is a 1JZGE (non turbo) - so Chris, I hope that helps you a bit !
Cheers.
|
|
|
Location:
sunny coast, qld
Registered:
October 2002
|
|
Re: 1JZ top end rattle
|
Wed, 21 July 2004 08:49
|
|
by the way you describe the noise, it seems like mine is a louder noise? hard to tell when neither of us have heard each others engines though 
I thought you were in brisbane when i first read this topic and I was already for a trip to come and hear another rattly 1jz! 
My noise can definitely be heard when the revs go up, the noise gets quicker.
|
|
|
Location:
Sydney
Registered:
May 2002
|
|
Re: 1JZ top end rattle
|
Wed, 21 July 2004 09:43
|
|
is it manual? could it be the thrust bearing?
also could it be the injectors?
|
|
|
Registered:
May 2004
|
|
Re: 1JZ top end rattle
|
Wed, 21 July 2004 09:50
|
|
Automatic (unfortunately), so that rules out the thrust bearing. When you say injectors what exactly do you mean ? Would fauly injectors make a similar noise to the one I have described ?
Cheers.
.
|
|
|
Location:
Forrestfield, WA
Registered:
August 2002
|
|
Re: 1JZ top end rattle
|
Wed, 21 July 2004 14:39
|
|
my 1j has a funny rattle, seems to come from top of the motor, never really been able to isolate it..... but its had it for 4 years, done maybe 4 or 5 track days, 10 autokhana days, lots of supersido, nuts, poor attempted drifting, and it still going strong.
They are fairly noisey engines, i boonged around for ages, put it down to maybe a bearing on one of the pulleys on the front of the motor and the noise was just resonating around or something... its never affected the running of the car.. car is serviced every 4,000kms, i tried using mobile 10w instead of 5w incase the old buggar was getting worn or something... but yeah still the same.
unless anyone else knows what it is, maybe get a workshop to offer an opinion?, i wouldnt lose any sleep over it, end of the day 1j in fairly stock form is bulletproof from what you read/hear/experience.
- Russ
|
|
|
Location:
sunny coast, qld
Registered:
October 2002
|
|
Re: 1JZ top end rattle
|
Wed, 21 July 2004 22:50
|
|
INTJ: just pull your injector plugs off one at a time and if the noise stops then that is it. the car will run on 5 cylinders and drop revs though.
poombah: I know what you mean but I can tell you that my noise is NOT a normal noise! I think that INTJ's sounds like more of a regular noise though.
|
|
|
Registered:
May 2004
|
|
Re: 1JZ top end rattle
|
Thu, 22 July 2004 00:23
|
|
Chris,
I was asking if it was likely that a faulty injector could cause the noise I have described, before I start messing about with it.
Regards.
|
|
|
Location:
sunny coast, qld
Registered:
October 2002
|
|
Re: 1JZ top end rattle
|
Thu, 22 July 2004 01:24
|
|
|
I have been told they can make noises like that but still work. do the test I said it is easy as and will eliminate it if that is the problem.
|
|
|
Location:
Brisbane
Registered:
June 2003
|
|
Re: 1JZ top end rattle
|
Thu, 22 July 2004 08:08
|
|
|
worn out injectors makes a rattly noise as well...my 7m does it until it warms up!
|
|
|
Location:
perth WA
Registered:
January 2003
|
|
Re: 1JZ top end rattle
|
Fri, 23 July 2004 15:15
|
|
mine didnt use to make a rattle , but it does make it now .. loudish when first started then queits down a fair bit after warm .. also a 1jz in a hilux .. um my halfcut had 63 km ive done another 7km on it , changing oil every 2-2500 kms so far ..
Damm 1jz maybe just rattle boxes ?
|
|
|
Registered:
March 2003
|
|
Re: 1JZ top end rattle
|
Fri, 23 July 2004 15:54
|
|
slylux: do you mean when you first start it when it is cold it makes more of a clunking sound on low revs? That's what mine does then goes away after a while when it's warm and at higher revs.
I haven't a clue what it is.
|
|
|
Location:
sunny coast, qld
Registered:
October 2002
|
|
Re: 1JZ top end rattle
|
Sat, 24 July 2004 00:39
|
|
you two can just be grateful that your noise goes away after a while!
I wish mine would FUCKING go away!!!
|
|
|
Location:
Brisbane
Registered:
July 2002
|
|
Re: 1JZ top end rattle
|
Sat, 24 July 2004 00:57
|
|
| Chris Davey wrote on Sat, 24 July 2004 10:39 |
you two can just be grateful that your noise goes away after a while!
I wish mine would FUCKING go away!!!
|
drive it till it dies!
|
|
|
Location:
Brisbane
Registered:
June 2003
|
|
Re: 1JZ top end rattle
|
Sat, 24 July 2004 06:42
|
|
|
it is the injectors making that rattle. Mine sounds awful when first starting, and if you listen you can tell its the injectors. As soon as its warm, quiet as a mouse.
|
|
|
Registered:
March 2003
|
|
Re: 1JZ top end rattle
|
Sat, 24 July 2004 10:17
|
|
Injecotrs rattling? It sounds more bottom end than anything. It's quite loud and clunky. It goes away when it warms up with the revs rising.
What oil do you use Chris? Mobile 1 is too thin.
|
|
|
Location:
Brisbane
Registered:
June 2003
|
|
Re: 1JZ top end rattle
|
Sat, 24 July 2004 10:24
|
|
told u danish 
|
|
|
Registered:
March 2003
|
|
Re: 1JZ top end rattle
|
Sat, 24 July 2004 10:28
|
|
About the injectors or the oil?
Yeah, I stopped using that a while ago now! I use Motul 4100 turbolight. 10W40.
I know it's not the injectors though. What else could it be? Lubrication problem?
|
|
|
Location:
Brisbane
Registered:
June 2003
|
|
|
I supported Toymods
Location:
Perth
Registered:
May 2002
|
|
Re: 1JZ top end rattle
|
Sat, 24 July 2004 10:39
|
|
| Danish wrote on Sat, 24 July 2004 18:17 |
What oil do you use Chris? Mobile 1 is too thin.
|
You mean you were using the wrong Mobil 1... 
|
|
|
Registered:
March 2003
|
|
Re: 1JZ top end rattle
|
Sat, 24 July 2004 11:18
|
|
I'd have to order that HPR30 in (it's probably only semisynthetic too), I looked for it everywhere and settled on Motul instead. 20W seems to thick.
DOOFUS!
|
|
|
I supported Toymods
Location:
Perth
Registered:
May 2002
|
|
Re: 1JZ top end rattle
|
Sat, 24 July 2004 11:20
|
|
|
If you are keen on synthetic, try a different Mobil 1, they come in like 5 different viscosities.
|
|
|
Location:
Brisbane
Registered:
June 2003
|
|
Re: 1JZ top end rattle
|
Sat, 24 July 2004 11:23
|
|
| Danish wrote on Sat, 24 July 2004 21:18 |
I'd have to order that HPR30 in (it's probably only semisynthetic too), I looked for it everywhere and settled on Motul instead. 20W seems to thick.
DOOFUS!
|
Dude you can get it from supercheap or anywhere! its a mineral oil!
|
|
|
Location:
sunny coast, qld
Registered:
October 2002
|
|
Re: 1JZ top end rattle
|
Sun, 25 July 2004 02:53
|
|
|
I did use 10w30, then tried some HPR 30 to fix the problem, (didn't), now running 5w40. I usually use Repsol.
|
|
|
Location:
Brisbane
Registered:
June 2003
|
|
Re: 1JZ top end rattle
|
Sun, 25 July 2004 07:44
|
|
|
chris did you try some of that moreys oil shit? How about the upper cylinder...Im not saying these will fix..but worth a try!
|
|
|
Registered:
March 2003
|
|
Re: 1JZ top end rattle
|
Sun, 25 July 2004 09:01
|
|
Mineral oil in a 1JZ, that's a big negative. And they don't have it here in SA at the time I bought oil.
I checked Repco, SuperCheap, AutoPro, Autobarn.
|
|
|
Location:
Brisbane
Registered:
June 2003
|
|
Re: 1JZ top end rattle
|
Sun, 25 July 2004 10:40
|
|
Tell me why its a big negative?
IM damn sure toyota woudlnt have specd fully synthetic oil back in the late 80s when 1jzs were designed. Correct me if im wrong!
|
|
|
Location:
Brisbane
Registered:
July 2002
|
|
Re: 1JZ top end rattle
|
Sun, 25 July 2004 11:12
|
|
injectors dont make a rattle in 1jz
they make a ticking
|
|
|
Location:
Brisbane
Registered:
June 2003
|
|
Re: 1JZ top end rattle
|
Sun, 25 July 2004 11:18
|
|
ticking injectors = normal, running well injectors (any motor)
Rattly = worn out/ dirty injectors (any motor)
|
|
|
Registered:
March 2003
|
|
Re: 1JZ top end rattle
|
Sun, 25 July 2004 16:29
|
|
Meh! It still clunks more than rattles.
cold start...(500-700RPM)clunk, clunk, clunk.... rev
it higher, slightly goes away... warm it up... gone.
La bang, w00t.
|
|
|
Location:
sunny coast, qld
Registered:
October 2002
|
|
Re: 1JZ top end rattle
|
Sun, 25 July 2004 22:39
|
|
yep, tried it. Didn't work either 
I think my problem is in the bottom end somehow. Hopefully just going to swap in another engine and use mine for spares.
and mine is definitely more of a clunk than a tap
|
|
|
Location:
Brisbane
Registered:
July 2002
|
|
Re: 1JZ top end rattle
|
Sun, 25 July 2004 23:35
|
|
chris's is definately more a clunk than a tap
mine never makes a clunk sound.. only a tap
|
|
|
