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Spark plug question (97 4.6 T-Bird)

 
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F.H.

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Since: Nov 22, 2008
Posts: 11



(Msg. 1) Posted: Sun Jan 16, 2011 3:30 pm
Post subject: Spark plug question (97 4.6 T-Bird)
Archived from groups: alt>autos>ford (more info?)

Getting set for smog test so paranoia lurks. Current set of Motorcraft
Platinum finewire AGSF32FM have only 15K on them and don't look too bad.
Is there a plug that is better or one that might enhance emission test
readings.

Perhaps a test only set? Engine in good shape for 190K (has always
passed) but burns about a quart of Motorcraft 10/30 synthetic blend
every 1100 miles or so.

TIA for any input.

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Sheldon

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Since: Mar 26, 2005
Posts: 124



(Msg. 2) Posted: Sun Jan 16, 2011 5:08 pm
Post subject: Re: Spark plug question (97 4.6 T-Bird) [Login to view extended thread Info.]
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"F.H." wrote in message

> Getting set for smog test so paranoia lurks. Current set of Motorcraft
> Platinum finewire AGSF32FM have only 15K on them and don't look too bad.
> Is there a plug that is better or one that might enhance emission test
> readings.
>
> Perhaps a test only set? Engine in good shape for 190K (has always
> passed) but burns about a quart of Motorcraft 10/30 synthetic blend every
> 1100 miles or so.
>
> TIA for any input.

I've been told many times that if there was a sparkplug that gave you lower
emissions and better mileage don't you think the manufacturer would use it?
As for the oil burning: on a car with 190,000 miles, I doubt using a quart
of oil every thousand miles is out of line. I certainly wouldn't go to a
heavier grade or use any additives to stop it. You might want to do a
compression check and/or a leakdown test to see what kind of shape the
cylinders, valves and rings are in, but personally, I wouldn't worry about
it.

On emissions, it either passes or it doesn't, and a good mechanic can tell
you what the best time is to bring the car in for emissions..Often when the
car is warmed up and driven a little hard before bringing it in. Often it's
a faulty component that causes a car to flunk. I seriously doubt spark
plugs or a different oil will make a difference. Now, that said, if the car
is smoking you might be able to hide that, but I can't see a car that only
burns a quart every thousand miles smoking.

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clare

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Since: Oct 30, 2008
Posts: 43



(Msg. 3) Posted: Sun Jan 16, 2011 7:38 pm
Post subject: Re: Spark plug question (97 4.6 T-Bird) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On Sun, 16 Jan 2011 10:30:55 -0800, "F.H."
wrote:

>Getting set for smog test so paranoia lurks. Current set of Motorcraft
>Platinum finewire AGSF32FM have only 15K on them and don't look too bad.
> Is there a plug that is better or one that might enhance emission test
>readings.
>
>Perhaps a test only set? Engine in good shape for 190K (has always
>passed) but burns about a quart of Motorcraft 10/30 synthetic blend
>every 1100 miles or so.
>
>TIA for any input.
Forget changing the plugs - if it's not misfiring it won't gain you
anything. Put fresh oil in for the test - 10W40 or 15W50 will cut the
oil consumption to less than half - which will keep the hydrocarbons
down and keep the cat functioning (clean). And really, a yankee quart
every 1100 miles is NOT a serious oil consumption rate.
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F.H.

External


Since: Nov 22, 2008
Posts: 11



(Msg. 4) Posted: Sun Jan 16, 2011 7:38 pm
Post subject: Re: Spark plug question (97 4.6 T-Bird) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On 1/16/2011 11:38 AM, clare.TakeThisOut@snyder.on.ca wrote:
> On Sun, 16 Jan 2011 10:30:55 -0800, "F.H."
> wrote:
>
>> Getting set for smog test so paranoia lurks. Current set of Motorcraft
>> Platinum finewire AGSF32FM have only 15K on them and don't look too bad.
>> Is there a plug that is better or one that might enhance emission test
>> readings.
>>
>> Perhaps a test only set? Engine in good shape for 190K (has always
>> passed) but burns about a quart of Motorcraft 10/30 synthetic blend
>> every 1100 miles or so.
>>
>> TIA for any input.
> Forget changing the plugs - if it's not misfiring it won't gain you
> anything. Put fresh oil in for the test - 10W40 or 15W50 will cut the
> oil consumption to less than half - which will keep the hydrocarbons
> down and keep the cat functioning (clean). And really, a yankee quart
> every 1100 miles is NOT a serious oil consumption rate.

A few years back you helped me with changing the gasket on the oil
filter housing. I'm an old (as in no longer) boat racer and as soon as
it was time for an oil change (bought it new) I switched to a 20-50
racing oil. Seems to have worked out Ok but I always wondered if that
impacted the aforementioned gasket. Switching to the lighter oil upped
my mileage noticeably (to my surprise) but since I am 'paranoid' and it
is winter, I may go ahead and change to something heavier for a while.

Thanks again.
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repairman54

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Since: Jan 16, 2011
Posts: 1



(Msg. 5) Posted: Sun Jan 16, 2011 8:21 pm
Post subject: Re: Spark plug question (97 4.6 T-Bird) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

"F.H." wrote in message

> Getting set for smog test so paranoia lurks. Current set of Motorcraft
> Platinum finewire AGSF32FM have only 15K on them and don't look too bad.
> Is there a plug that is better or one that might enhance emission test
> readings.
>
> Perhaps a test only set? Engine in good shape for 190K (has always
> passed) but burns about a quart of Motorcraft 10/30 synthetic blend every
> 1100 miles or so.
>
> TIA for any input.

I would add to the rest that if the car only gets short runs around town to
get it out on the highway to get the cats up to temp. so they burn off any
build up in them before testing.
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F.H.

External


Since: Nov 22, 2008
Posts: 11



(Msg. 6) Posted: Sun Jan 16, 2011 8:21 pm
Post subject: Re: Spark plug question (97 4.6 T-Bird) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On 1/16/2011 12:21 PM, repairman54 wrote:
> "F.H." wrote in message
>
>> Getting set for smog test so paranoia lurks. Current set of Motorcraft
>> Platinum finewire AGSF32FM have only 15K on them and don't look too bad.
>> Is there a plug that is better or one that might enhance emission test
>> readings.
>>
>> Perhaps a test only set? Engine in good shape for 190K (has always
>> passed) but burns about a quart of Motorcraft 10/30 synthetic blend every
>> 1100 miles or so.
>>
>> TIA for any input.
>
> I would add to the rest that if the car only gets short runs around town to
> get it out on the highway to get the cats up to temp. so they burn off any
> build up in them before testing.

Thanks to all, much appreciated.
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BR549

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Since: Jan 17, 2011
Posts: 1



(Msg. 7) Posted: Mon Jan 17, 2011 3:25 pm
Post subject: Re: Spark plug question (97 4.6 T-Bird) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

"F.H." wrote in message

> Getting set for smog test so paranoia lurks. Current set of Motorcraft
> Platinum finewire AGSF32FM have only 15K on them and don't look too bad.
> Is there a plug that is better or one that might enhance emission test
> readings.
>
> Perhaps a test only set? Engine in good shape for 190K (has always
> passed) but burns about a quart of Motorcraft 10/30 synthetic blend every
> 1100 miles or so.
>
> TIA for any input.

When I had to go through that here in Florida I would purchase one of the
many gas additives that the autoparts stores sold that advertised to reduce
emissions. It would always help my 79 Corvette pass the tests, if I didnt'
use them I was doomed to failing the test. I don't know if they still sell
them as they stopped emission testing here years ago.
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F.H.

External


Since: Nov 22, 2008
Posts: 11



(Msg. 8) Posted: Mon Jan 17, 2011 5:42 pm
Post subject: Re: Spark plug question (97 4.6 T-Bird) [Login to view extended thread Info.]
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On 1/17/2011 12:36 PM, F.H. wrote:

> Thanks much. Is it possible to replace the valve seals without removing
> the heads?

Doing a manifold R&R to repair leak in heater pipe bracket mentioned in
earlier post and there was a noticeable oil residue around the intake
seal areas and inside the intake manifold. Can that be valve seals also?
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Ashton Crusher

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Since: Mar 16, 2007
Posts: 291



(Msg. 9) Posted: Wed Jan 19, 2011 3:52 am
Post subject: Re: Spark plug question (97 4.6 T-Bird) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On Sun, 16 Jan 2011 13:39:02 -0800, "F.H."
wrote:

>On 1/16/2011 11:38 AM, clare.TakeThisOut@snyder.on.ca wrote:
>> On Sun, 16 Jan 2011 10:30:55 -0800, "F.H."
>> wrote:
>>
>>> Getting set for smog test so paranoia lurks. Current set of Motorcraft
>>> Platinum finewire AGSF32FM have only 15K on them and don't look too bad.
>>> Is there a plug that is better or one that might enhance emission test
>>> readings.
>>>
>>> Perhaps a test only set? Engine in good shape for 190K (has always
>>> passed) but burns about a quart of Motorcraft 10/30 synthetic blend
>>> every 1100 miles or so.
>>>
>>> TIA for any input.
>> Forget changing the plugs - if it's not misfiring it won't gain you
>> anything. Put fresh oil in for the test - 10W40 or 15W50 will cut the
>> oil consumption to less than half - which will keep the hydrocarbons
>> down and keep the cat functioning (clean). And really, a yankee quart
>> every 1100 miles is NOT a serious oil consumption rate.
>
>A few years back you helped me with changing the gasket on the oil
>filter housing. I'm an old (as in no longer) boat racer and as soon as
>it was time for an oil change (bought it new) I switched to a 20-50
>racing oil. Seems to have worked out Ok but I always wondered if that
>impacted the aforementioned gasket. Switching to the lighter oil upped
>my mileage noticeably (to my surprise) but since I am 'paranoid' and it
>is winter, I may go ahead and change to something heavier for a while.
>
>Thanks again.

Why would you put heavier oil in it in the winter???
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Sheldon

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Since: Mar 26, 2005
Posts: 124



(Msg. 10) Posted: Wed Jan 19, 2011 5:37 pm
Post subject: Re: Spark plug question (97 4.6 T-Bird) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

"Ashton Crusher" wrote in message

> On Sun, 16 Jan 2011 13:39:02 -0800, "F.H."
> wrote:
>
>>On 1/16/2011 11:38 AM, clare RemoveThis @snyder.on.ca wrote:
>>> On Sun, 16 Jan 2011 10:30:55 -0800, "F.H."
>>> wrote:
>>>
>>>> Getting set for smog test so paranoia lurks. Current set of Motorcraft
>>>> Platinum finewire AGSF32FM have only 15K on them and don't look too
>>>> bad.
>>>> Is there a plug that is better or one that might enhance emission
>>>> test
>>>> readings.
>>>>
>>>> Perhaps a test only set? Engine in good shape for 190K (has always
>>>> passed) but burns about a quart of Motorcraft 10/30 synthetic blend
>>>> every 1100 miles or so.
>>>>
>>>> TIA for any input.
>>> Forget changing the plugs - if it's not misfiring it won't gain you
>>> anything. Put fresh oil in for the test - 10W40 or 15W50 will cut the
>>> oil consumption to less than half - which will keep the hydrocarbons
>>> down and keep the cat functioning (clean). And really, a yankee quart
>>> every 1100 miles is NOT a serious oil consumption rate.
>>
>>A few years back you helped me with changing the gasket on the oil
>>filter housing. I'm an old (as in no longer) boat racer and as soon as
>>it was time for an oil change (bought it new) I switched to a 20-50
>>racing oil. Seems to have worked out Ok but I always wondered if that
>>impacted the aforementioned gasket. Switching to the lighter oil upped
>>my mileage noticeably (to my surprise) but since I am 'paranoid' and it
>>is winter, I may go ahead and change to something heavier for a while.
>>
>>Thanks again.
>
> Why would you put heavier oil in it in the winter???

People think that heavier oil will stop oil from burning off and getting
past the rings and guides. This may be true, but the tradeoff is poor
lubrication and premature wear.
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clare

External


Since: Oct 30, 2008
Posts: 43



(Msg. 11) Posted: Wed Jan 19, 2011 11:28 pm
Post subject: Re: Spark plug question (97 4.6 T-Bird) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On Wed, 19 Jan 2011 12:37:24 -0700, "Sheldon"
wrote:

>
>"Ashton Crusher" wrote in message
>
>> On Sun, 16 Jan 2011 13:39:02 -0800, "F.H."
>> wrote:
>>
>>>On 1/16/2011 11:38 AM, clare.RemoveThis@snyder.on.ca wrote:
>>>> On Sun, 16 Jan 2011 10:30:55 -0800, "F.H."
>>>> wrote:
>>>>
>>>>> Getting set for smog test so paranoia lurks. Current set of Motorcraft
>>>>> Platinum finewire AGSF32FM have only 15K on them and don't look too
>>>>> bad.
>>>>> Is there a plug that is better or one that might enhance emission
>>>>> test
>>>>> readings.
>>>>>
>>>>> Perhaps a test only set? Engine in good shape for 190K (has always
>>>>> passed) but burns about a quart of Motorcraft 10/30 synthetic blend
>>>>> every 1100 miles or so.
>>>>>
>>>>> TIA for any input.
>>>> Forget changing the plugs - if it's not misfiring it won't gain you
>>>> anything. Put fresh oil in for the test - 10W40 or 15W50 will cut the
>>>> oil consumption to less than half - which will keep the hydrocarbons
>>>> down and keep the cat functioning (clean). And really, a yankee quart
>>>> every 1100 miles is NOT a serious oil consumption rate.
>>>
>>>A few years back you helped me with changing the gasket on the oil
>>>filter housing. I'm an old (as in no longer) boat racer and as soon as
>>>it was time for an oil change (bought it new) I switched to a 20-50
>>>racing oil. Seems to have worked out Ok but I always wondered if that
>>>impacted the aforementioned gasket. Switching to the lighter oil upped
>>>my mileage noticeably (to my surprise) but since I am 'paranoid' and it
>>>is winter, I may go ahead and change to something heavier for a while.
>>>
>>>Thanks again.
>>
>> Why would you put heavier oil in it in the winter???
>
>People think that heavier oil will stop oil from burning off and getting
>past the rings and guides. This may be true, but the tradeoff is poor
>lubrication and premature wear.
>
OK - I have no idea where the OP is located, so if the weather is
terribly cold or not - and a 10W30 or 10W40 is the same thickness when
cold - but 10W40 will, all other things being equal, be consumed at a
slower rate.
As for the wear, it can actually balance out, depending on what
driving the car gets. Yes, thin oil (low number before the W)
lubricates quicker when cold - but in some cases thicker (higher
number after the W) oil lubricates better when warm, and the engine
spends a lot more time running at temperature than it does starting
with thickened oil.
And as a mechanic I don't buy the explanation the manufacturers are
giving for using 5W20 oils (better lubrication when cold). It is a
CAFE issue much more than an engine wear issue. The clearances in
engine bearings have not changed appreciably in over 35 years. The
improvements in quality control and finish quality means the mean
clearance may well have INCREASED as there are fewer high spots to
cause restricted clearance.
When a clearance was specified as 10 thousanths of an inch it was very
common to have a few percent of the bearing surface less than 5
thousanths of an inch - which caused (required) accellerated wear to
get "broken in". That does not happen on today's engines to any
extent.

If the OP is in a very cold part of the continent he might want to
consider a wide range synthetic oil (like a 5W50) to get both
advantages.
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F.H.

External


Since: Nov 22, 2008
Posts: 11



(Msg. 12) Posted: Thu Jan 20, 2011 2:27 am
Post subject: Re: Spark plug question (97 4.6 T-Bird) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On 1/19/2011 3:28 PM, clare RemoveThis @snyder.on.ca wrote:
> On Wed, 19 Jan 2011 12:37:24 -0700, "Sheldon"
> wrote:
>
>>
>> "Ashton Crusher" wrote in message
>>
>>> On Sun, 16 Jan 2011 13:39:02 -0800, "F.H."
>>> wrote:
>>>
>>>> On 1/16/2011 11:38 AM, clare RemoveThis @snyder.on.ca wrote:
>>>>> On Sun, 16 Jan 2011 10:30:55 -0800, "F.H."
>>>>> wrote:
>>>>>
>>>>>> Getting set for smog test so paranoia lurks. Current set of Motorcraft
>>>>>> Platinum finewire AGSF32FM have only 15K on them and don't look too
>>>>>> bad.
>>>>>> Is there a plug that is better or one that might enhance emission
>>>>>> test
>>>>>> readings.
>>>>>>
>>>>>> Perhaps a test only set? Engine in good shape for 190K (has always
>>>>>> passed) but burns about a quart of Motorcraft 10/30 synthetic blend
>>>>>> every 1100 miles or so.
>>>>>>
>>>>>> TIA for any input.
>>>>> Forget changing the plugs - if it's not misfiring it won't gain you
>>>>> anything. Put fresh oil in for the test - 10W40 or 15W50 will cut the
>>>>> oil consumption to less than half - which will keep the hydrocarbons
>>>>> down and keep the cat functioning (clean). And really, a yankee quart
>>>>> every 1100 miles is NOT a serious oil consumption rate.
>>>>
>>>> A few years back you helped me with changing the gasket on the oil
>>>> filter housing. I'm an old (as in no longer) boat racer and as soon as
>>>> it was time for an oil change (bought it new) I switched to a 20-50
>>>> racing oil. Seems to have worked out Ok but I always wondered if that
>>>> impacted the aforementioned gasket. Switching to the lighter oil upped
>>>> my mileage noticeably (to my surprise) but since I am 'paranoid' and it
>>>> is winter, I may go ahead and change to something heavier for a while.
>>>>
>>>> Thanks again.
>>>
>>> Why would you put heavier oil in it in the winter???
>>
>> People think that heavier oil will stop oil from burning off and getting
>> past the rings and guides. This may be true, but the tradeoff is poor
>> lubrication and premature wear.
>>
> OK - I have no idea where the OP is located, so if the weather is
> terribly cold or not - and a 10W30 or 10W40 is the same thickness when
> cold - but 10W40 will, all other things being equal, be consumed at a
> slower rate.
> As for the wear, it can actually balance out, depending on what
> driving the car gets. Yes, thin oil (low number before the W)
> lubricates quicker when cold - but in some cases thicker (higher
> number after the W) oil lubricates better when warm, and the engine
> spends a lot more time running at temperature than it does starting
> with thickened oil.
> And as a mechanic I don't buy the explanation the manufacturers are
> giving for using 5W20 oils (better lubrication when cold). It is a
> CAFE issue much more than an engine wear issue. The clearances in
> engine bearings have not changed appreciably in over 35 years. The
> improvements in quality control and finish quality means the mean
> clearance may well have INCREASED as there are fewer high spots to
> cause restricted clearance.
> When a clearance was specified as 10 thousanths of an inch it was very
> common to have a few percent of the bearing surface less than 5
> thousanths of an inch - which caused (required) accellerated wear to
> get "broken in". That does not happen on today's engines to any
> extent.
>
> If the OP is in a very cold part of the continent he might want to
> consider a wide range synthetic oil (like a 5W50) to get both
> advantages.

I'm in Southern California. I did switch to 20/50 Valvoline Racing Oil
and when I compared my emissions printout to the last one two years and
15k ago it was /significantly/ better.
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F.H.

External


Since: Nov 22, 2008
Posts: 11



(Msg. 13) Posted: Thu Jan 20, 2011 2:46 am
Post subject: Re: Spark plug question (97 4.6 T-Bird) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On 1/19/2011 9:27 PM, F.H. wrote:

> I'm in Southern California. I did switch to 20/50 Valvoline Racing Oil
> and when I compared my emissions printout to the last one two years and
> 15k ago it was /significantly/ better.

Significantly better /this/ time.
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