non-interference engines?? - Toyota Nation Forum : Toyota Car and Truck Forums
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#1 Old 05-06-2004, 08:46 PM
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non-interference engines??

i wanna know which toyota cars come with non-interference engines. PLEASE LIST THE CARS BELOW WHICH HAVE non-interference engines:

THANKS

i will start the list

1990-1993 toyota celica has a non-interference engine
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#2 Old 05-06-2004, 09:32 PM
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Pretty much all F headed engines.

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#3 Old 05-07-2004, 06:05 AM
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Unlike its well-known 1MZ-FE ancestor, the new 3MZ-FE (3.3L V-6) is an interference design. Now, I haven't seen that on an official Toyota document, but I have seen it several places on the net. Woe to the poor fool who lets his timing belt go. . .
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#4 Old 05-07-2004, 09:58 AM
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Is the 3MZ belt-driven or chain-driven?

Current: 2003 Camry V6
Past: 2001 Camry I4, 1991 Camry V6
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#5 Old 05-07-2004, 11:50 AM
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As for Supra motors...

4M- may not be interference...given most of the family isn't, I'd put a fin down on that one being the same.

5M-GE is non interference

6M-GE Probably not interference. None of the other cousins of this era are, again, I'd be willing to be a fiver on that.

7M-GE and 7M-GTE are non interference...

1jz-GTE unsure. I've only seen one report, and it said no, but no tech articles I've seen to date cover that little detail.

2jz-GE and 2jz-GTE are non interference (see next note)

2jz-GE and 2jz-GTE are interference in VVT-I format (1998+)

1G...no idea...strange little econobox motor that has almost no information out there on it. Such an odd motor that it wouldn't surprise me if it was interference, but again, I have no idea on that.




Last edited by bgrieger; 05-07-2004 at 12:17 PM.
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#6 Old 05-07-2004, 12:22 PM
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http://www.geocities.com/MotorCity/P...neEngines.html

the ones with the asterix (*) beside the engine code are interference engines

-Nick
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#7 Old 05-07-2004, 10:11 PM
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Quote:
Originally posted by kgasso
Is the 3MZ belt-driven or chain-driven?
The 3MZ-FE is belt driven, and it is an interference engine.

B Kent
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#8 Old 05-10-2004, 10:02 PM
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does that mean the 88-89 4AGE is non-interference then?? fuk it.. i'll drive the bitch till the belt snaps.



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#9 Old 11-04-2004, 10:05 PM
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4Runner

1990-2000 4 Cylinder Chain

1990-2002 V6 Belt

2003-2005 V6 Chain

2003-2005 V8 Belt

Avalon

1995-2004 V6 Belt

Camry

1990-2001 All Belt

2002-2005 4 Cylinder Chain

2002-2005 V6 Belt

Celica

1990-1999 4 Cylinder Belt

2000-2005 4 Cylinder Chain

Corolla

1990-1997 4 Cylinder Belt

1998-2005 4 Cylinder Chain

Cressida

1990-1992 L6 Belt

ECHO

2000-2005 4 Cylinder Chain

Highlander

2001-2005 4 Cylinder Chain

2001-2005 V6 Belt

Land Cruiser

1990-1992 L6 Gear

1993-1997 L6 Chain

1998-2005 V8 Belt

MR2

1990-1995 4 Cylinder Belt

MR2 Spyder

2000-2005 4 Cylinder Chain

Matrix

2003-2005 4 Cylinder Chain

Paseo

1992-1997 4 Cylinder Belt

Prius

2001-2004 4 Cylinder Chain

RAV4

1996-2000 4 Cylinder Belt

2001-2004 4 Cylinder Chain

Sequoia

2001-2005 V8 Belt

Sienna

1998-2004 V6 Belt

Solara

1999-2001 4 Cylinder Belt

2002-2005 4 Cylinder Chain

1999-2005 V6 Belt

Supra

1990-1998 L6 Belt

T100

1993-1998 4 Cylinder Chain

1993-1998 V6 Belt

Tacoma

1995-2004 4 Cylinder Chain

1995-2004 V6 Belt

Tercel

1990-1998 4 Cylinder Belt

Truck

1990-1995 4 Cylinder Chain

1990-1995 V6 Belt

Tundra

2000-2004 V6 Belt

2005 V6 Chain

2000-2005 V8 Belt

Here's a little something to help you guys identify whether or not you have a timing belt or chain. Chains are so much better.

Jason
2005 Tacoma D-Cab 4x4 Off-Road
1991 MR2 w/ ported 1MZFE (MZW20)
1991 MR2 N/A (SW21)
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#10 Old 11-05-2004, 11:31 AM
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I first heard about them on Nissan's.



what are the benefits of chain though? besides being all strong and no slipping wear. (The obvious)


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#11 Old 11-05-2004, 12:24 PM
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Cool

the entire VZ block family is non.
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#12 Old 11-09-2004, 09:41 PM
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Quote:
Originally posted by SolaraTRD
I first heard about them on Nissan's.

what are the benefits of chain though? besides being all strong and no slipping wear. (The obvious)
They're much more durable than the belts. As a result, they don't abruptly break like belts can. A broken belt in an interference engine probably means the whole engine is destroyed, as the pistons take turns slamming into open valves. Ouch. Bad. Chains are lubricated by the engine's oil system, and are designed so that they should last as long or longer than the rest of the engine. Years ago, the main drawback of the chains was that they were noisier. That's now been largely designed out of them. Ironically, I find the VQ35 V-6 in my G35 is more "mechanical" sounding than the 1MZ in the Camry I had before, but none of the mechanical sounds seem to be from the chain.
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#13 Old 11-09-2004, 09:53 PM
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Sorry for asking but what does interference and non-interference mean. Is it chain- and belt-drive?


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#14 Old 11-09-2004, 10:34 PM
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Quote:
Originally posted by Ukrainian102
Sorry for asking but what does interference and non-interference mean. Is it chain- and belt-drive?
No problem. In an interference design, the valves open deeply enough into the combustion chamber that they actually occupy space that the climbing piston will reach a few microseconds after the valve starts pulling back. These engines absolutely depend upon the proper operation of the mechanical timing system to ensure that the two don't try to be in the same place at the same time. Hence the disadvantage this type of design has when a timing belt, which is responsible for positioning the valves, breaks suddenly. This is generally a bad, bad thing.
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#15 Old 05-17-2014, 11:51 AM
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I have a 1990 Corolla DLX 135,000. I have no flipping idea if the timing belt was ever changed. Any idea if it has an interference engine? I only wonder so I can prepare for the worst. I plan on getting it changed this month. So could someone tell me if this has an interference engine and if it will blow up on me if the belt fails.
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