1991 4 cyl valve question

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Old 23 Jan 2006, 10:21 am   #1 (permalink)
Seamus J. Wilson
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Default 1991 4 cyl valve question

Mechanic told me that there is no need for valve adjsutment on subject
engine. Said it was automatic hydraulic adjustment.
Seems incredible to me. Need comments and confirmation, please.
Thank you,
Seamus J. Wilson


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Old 23 Jan 2006, 11:31 am   #2 (permalink)
Jason James
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Default Re: 1991 4 cyl valve question


"Seamus J. Wilson" <sligo@cox.net> wrote in message
news:An7Bf.10889$ZA5.4107@fed1read05...
> Mechanic told me that there is no need for valve adjsutment on subject
> engine. Said it was automatic hydraulic adjustment.
> Seems incredible to me. Need comments and confirmation, please.
> Thank you,
> Seamus J. Wilson


If you have a '91 Camry, it should have either the 3SFE (roughly 2 L) or
less likely the 5SFE (about 2.2L). I dont know of any other engine used in
these cars. Its possible they may have a different engine in a car sold in
less affluent countries, but I doubt it very much.

Both these engines are similar except for capacity ( bore and stroke) and
other small changes. The valve lash is adjusted by selecting the right shim
for each valve. The shim sits on top of the cam-follower, in a special
recess It requires a good mechanical ability and special tools to do this
job. Your mechanic was wrong when he said they use hydraulic lash
eliminators.

Unless the engine has loud valve-train noise,..it's safe to leave them
alone.

Jason


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Old 23 Jan 2006, 12:37 pm   #3 (permalink)
Seamus J. Wilson
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Default Re: 1991 4 cyl valve question

Thank you for kind answer.
Best,
Seamus J. Wilson
"Jason James" <associate@dodo.comzapspam.au> wrote in message
news:43d512fa$1@news.comindico.com.au...
>
> "Seamus J. Wilson" <sligo@cox.net> wrote in message
> news:An7Bf.10889$ZA5.4107@fed1read05...
>> Mechanic told me that there is no need for valve adjsutment on subject
>> engine. Said it was automatic hydraulic adjustment.
>> Seems incredible to me. Need comments and confirmation, please.
>> Thank you,
>> Seamus J. Wilson

>
> If you have a '91 Camry, it should have either the 3SFE (roughly 2 L) or
> less likely the 5SFE (about 2.2L). I dont know of any other engine used in
> these cars. Its possible they may have a different engine in a car sold in
> less affluent countries, but I doubt it very much.
>
> Both these engines are similar except for capacity ( bore and stroke) and
> other small changes. The valve lash is adjusted by selecting the right
> shim
> for each valve. The shim sits on top of the cam-follower, in a special
> recess It requires a good mechanical ability and special tools to do this
> job. Your mechanic was wrong when he said they use hydraulic lash
> eliminators.
>
> Unless the engine has loud valve-train noise,..it's safe to leave them
> alone.
>
> Jason
>
>



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Old 25 Jan 2006, 12:14 pm   #4 (permalink)
Daniel
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Default Re: 1991 4 cyl valve question

They do not have hydraulic lifters - the lifters are solid, but due to
precision engineering and design, they rarely require adjustment -
Toyota still recommends you check them, though, just that generally
they're always fine.
The four valve design means valves are lighter, and the overhead cam
means the valve train is very light - only a lifter moves, plus they're
at the bottom of the top of the head, so always bathed in oil.

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