Is 4 cylinder 2007 camry engine interference or non-interference ?

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Old 17 Sep 2006, 09:45 am   #1 (permalink)
wp51dos
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Default Is 4 cylinder 2007 camry engine interference or non-interference ?

Is 4 cylinder 2007 camry engine interference or non-interference ?

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Old 22 Sep 2006, 09:53 am   #2 (permalink)
Bob H
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Default Re: Is 4 cylinder 2007 camry engine interference or non-interference ?


"wp51dos" <wp51dos@yahoo.com> wrote in message
news:1158504319.832721.134720@i3g2000cwc.googlegro ups.com...
> Is 4 cylinder 2007 camry engine interference or non-interference ?
>


interference


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Old 22 Sep 2006, 01:47 pm   #3 (permalink)
Stubby
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Default Re: Is 4 cylinder 2007 camry engine interference or non-interference?



Bob H wrote:
> "wp51dos" <wp51dos@yahoo.com> wrote in message
> news:1158504319.832721.134720@i3g2000cwc.googlegro ups.com...
>> Is 4 cylinder 2007 camry engine interference or non-interference ?
>>

>
> interference


Sorry, but I have to ask about a 4 cyl, 1995 LE 4-door.
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Old 23 Sep 2006, 12:42 am   #4 (permalink)
johngdole@hotmail.com
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Default Re: Is 4 cylinder 2007 camry engine interference or non-interference ?

The 95 5SFE is a non-interference engine. The Gates pdf catalog file on
timing component kits (Gates makes excellent belts and hoses) will
detail which engines are interference or non-interference. Look it up
on www.gates.com



Stubby wrote:
> Sorry, but I have to ask about a 4 cyl, 1995 LE 4-door.


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Old 05 Oct 2006, 07:33 pm   #5 (permalink)
Michael Gallo
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Default Re: Is 4 cylinder 2007 camry engine interference or non-interference ?

ok...humor me a little - what is difference betw one or the other???
<johngdole@hotmail.com> wrote in message
news:1158990163.508188.34270@d34g2000cwd.googlegro ups.com...
> The 95 5SFE is a non-interference engine. The Gates pdf catalog file on
> timing component kits (Gates makes excellent belts and hoses) will
> detail which engines are interference or non-interference. Look it up
> on www.gates.com
>
>
>
> Stubby wrote:
>> Sorry, but I have to ask about a 4 cyl, 1995 LE 4-door.

>



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Old 05 Oct 2006, 07:37 pm   #6 (permalink)
Stubby
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Default Re: Is 4 cylinder 2007 camry engine interference or non-interference?

My understanding is that an "interference" engine will damage itself if
the timing chain breaks. So if you have a chain, you must change it on
schedule or prepare to have your car towed. If your car has a belt, it
might break but it won't damage the engine.


Michael Gallo wrote:
> ok...humor me a little - what is difference betw one or the other???
> <johngdole@hotmail.com> wrote in message
> news:1158990163.508188.34270@d34g2000cwd.googlegro ups.com...
>> The 95 5SFE is a non-interference engine. The Gates pdf catalog file on
>> timing component kits (Gates makes excellent belts and hoses) will
>> detail which engines are interference or non-interference. Look it up
>> on www.gates.com
>>
>>
>>
>> Stubby wrote:
>>> Sorry, but I have to ask about a 4 cyl, 1995 LE 4-door.

>
>

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Old 05 Oct 2006, 08:07 pm   #7 (permalink)
Don Fearn
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Default Re: Is 4 cylinder 2007 camry engine interference or non-interference ?

I think it was Stubby <William.Plummer-NOSPAM-@alum.mit.edu> who
stated:

>My understanding is that an "interference" engine will damage itself if
>the timing chain breaks. So if you have a chain, you must change it on
>schedule or prepare to have your car towed. If your car has a belt, it
>might break but it won't damage the engine.


Close.

If you have a belt OR a chain, you must change it on schedule or
prepare to have your car towed when it breaks, because the engine will
stop running when it does.

But if you have an "interference" engine, the engine will damage
itself when the timing thing breaks, regardless of which it is, a belt
or a chain.

What happens is that the valves and the pistons interfere with each
other when the timing is off because of a broken belt or chain. The
interference causes damage because the pistons and the valves smash
against each other, destroying both and possibly (probably) bashing
the head that the valves ride in and the cylinder that the pistons
ride in.

It ain't a pretty sight, and it IS an expensive one when an
interference engine breaks a belt or a chain . . . .

-Don

--
Pooder approved this post . . . .
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Old 06 Oct 2006, 12:56 pm   #8 (permalink)
Daniel
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Default Re: Is 4 cylinder 2007 camry engine interference or non-interference ?

Michael Gallo wrote:
> ok...humor me a little - what is difference betw one or the other???

==================
Chain is heavier and noisier but lasts longer.
Belt is quieter and lighter but needs to be changed more often.
Generally interference engines can be higher performance because the
valves come closer to the pistons during operation, so the valve lift
can be higher - that means they can open wider.
Non interference means that even if the valves are opening randomly
when the belt breaks, valves stop moving and the piston keeps moving
from intertial force, the valves will not hit the piston.
This is the theory. It may be possible that a car with a lot of city
miles has accumulated enough carbon that the valves can still be bent.
As a practical matter, it doesn't make a lot of difference. You just
keep up on the recommended maintenance and you never have a problem.
Toyota sets the belt replacement guidelines conservatively with a wide
safety margin for most drivers.

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