[Lumps!] emmisions/overheating

Lumps
1

in cal. the state has issued a regulation allowing the smog test
facility to purchase and use a cooling fan in front of the car if the
shop does not have such a unit then purchase a 20 inch box fan to take
with you to the test to help cool the car so that it will not overheat
during the test you can purchase such a fan from most hardware stores or
large department stores such as Target for probably around 25.00 or less

2

in cal. the state has issued a regulation allowing the smog test
facility to purchase and use a cooling fan in front of the car if the
shop does not have such a unit then purchase a 20 inch box fan to take
with you to the test to help cool the car so that it will not overheat
during the test you can purchase such a fan from most hardware stores or
large department stores such as Target for probably around 25.00 or less

Someone better report on the test. If this test involves only light
cruise driving, this box fan might do the trick – in fact, you might
not need the fan at all; the ones built into the car will probably
work if they are in good order. OTOH, if this test involves more
than a few seconds at full throttle where the Jag is going to have to
dissipate 275 hp worth of waste heat while sitting stationary, that
cheap box fan is probably gonna be totally inadequate – you will
need a BIG fan.

– Kirbert | Palm’s Postulate:
| If anything is to be accomplished,
| some rules must be broken.
| – Kirby Palm, 1979From: walter acker IV walter@slip.net

3

in cal. the state has issued a regulation allowing the smog test
facility to purchase and use a cooling fan in front of the car if the

work if they are in good order. OTOH, if this test involves more
than a few seconds at full throttle where the Jag is going to have to
dissipate 275 hp worth of waste heat while sitting stationary, that
cheap box fan is probably gonna be totally inadequate – you will
need a BIG fan.

Had my 87 Series III tested a few months ago in Chicago. They put a large
fan in front for the whole test. When I had my pulsar tested, no fan was
used. The pulsar test was shorter than the Jag test. Passed both but who
knows the hows or whys of this political mess. The test is necessary but I
don’t think they are conducted properly.

Dr.Michael E. Rothman
'87 January build Series III USA
Princess Margaret

4

Illinois has a roller test as well and they position a large fan in front of
the vehicle.
I have not had to test the big car yet, but on another of my vehicles the
test personal moved my seat, and rear view mirror to drive the car 20 feet to
and from the rollers. At least they did not smoke in the car. On a more
serious note, their attention is focused on a video screen positioned to the
left of the car. I watched him and he never once looked at the gauges on the
car. When the time comes, I will ask them to stop the test if the temp gauge
goes too high on the Kitty, but I doubt they will even look at it during the
test. Has anyone in IL. passed the new test yet?

Thanks for the read,
Douglas Dahl
1989 bright red Lucas 5.3

5

In a message dated 11/12/1999 12:58:59 AM Eastern Standard Time,
palmk@nettally.com writes:

<< Someone better report on the test. If this test involves only light
cruise driving, this box fan might do the trick – in fact, you might
not need the fan at all; the ones built into the car will probably
work if they are in good order. OTOH, if this test involves more
than a few seconds at full throttle where the Jag is going to have to
dissipate 275 hp worth of waste heat while sitting stationary, that
cheap box fan is probably gonna be totally inadequate – you will
need a BIG fan. >>

Nah, no problem with this test. In CT we’ve had this for a while. Last time
I took my 89 conv’t through, they let me drive because “we don’t want to
handle such an exotic car”. Max speed is around 30mph, with a light throttle
acceleration to this target speed by following the TV display speedo bar
target. I had to be careful not to overshoot the target accel because it was
so gentle. Had to stay at 30 mph for around 10 seconds or so (maybe longer),
then just get off the throttle to decelerate back to idle. They did place a
very large box fan (on a swinging arm) in front of the car, but frankly, the
test is so short and the load so light, that it really isn’t needed. The
temp gauge never moved up during the test from what it was reading while the
car was idling before the start of the load test.

BTW, the most difficult part of the test was getting the car over the lowered
rollers! There wasn’t much clearance, and when the car went up and over the
roller, it touched down when coming off the roller due to slight spring
bounce.

There was a lot of paranoia about this test before hand, with people thinking
that it would damage the car due to the test itself or the ‘incompetent’ test
technicians, but this hasn’t been the case (in my experience).

Steve - 89 conv’t/93 XJRs coupe

6

As I reported here earlier this year, my car passed the Calif. test after
fixing some things
that were causing rich running. I had it tested 3 times during the process. It
did not seriously
overheat, although it did get above N. All of this was before replacing the
radiator and fan clutch. On the other hand,
I took it to a test station near home first thing in the morning, so it was
not very hot when I got there.

The test is a 2 different speeds, 15 mph and 25 mph, under moderate load. No
auxiliary fans were
used.

Ed Sowell
76 XJ-S

7

For the non-US among us… do you have to go through this nightmare every
year?----- Original Message -----
From: Edward F. Sowell sowelled@home.com
To: JagLovers xj-s@jag-lovers.org
Sent: Friday, November 12, 1999 4:34 PM
Subject: Re: [xj-s] Overheating during smog tests

As I reported here earlier this year, my car passed the Calif. test after
fixing some things
that were causing rich running. I had it tested 3 times during the
process. It
did not seriously
overheat, although it did get above N. All of this was before replacing
the
radiator and fan clutch. On the other hand,
I took it to a test station near home first thing in the morning, so it
was
not very hot when I got there.

The test is a 2 different speeds, 15 mph and 25 mph, under moderate load.
No
auxiliary fans were
used.

Ed Sowell
76 XJ-S

8

Cat wrote:

----- Original Message -----
From: Edward F. Sowell sowelled@home.com
To: JagLovers xj-s@jag-lovers.org
Sent: Friday, November 12, 1999 4:34 PM
Subject: Re: [xj-s] Overheating during smog tests

As I reported here earlier this year, my car passed the Calif. test after
fixing some things
that were causing rich running. I had it tested 3 times during the
process.

Ed.

What was changed after each test to bring the car into compliance? My two cars
passed, but if in two years when I am required to retest, a precheck of of
critical areas will help to reduce the test time.

Ned

9

Ned,
After the first test with very high CO2 I had all injectors refurbished and rebuilt
the harness, theorizing
one or two leaky injectors. Well, some were leaky, but others were not discharging
specification flow,
and I was disappointed to learn at the 2nd test that it was worse! Before the 3rd
test I
did two things. I readjusted the pressure regulators, as I had earlier set them at
the top of
the specification pressure range hoping to solve another problem, and I replaced
the connectors
for the air and coolant temperature sensors. The latter was badly corroded.
Although I suspect the corroded
coolant temperature sensor was the true culprit all along, I regret none of the
work I did along the way
to passing on the 3rd test.

Cheers,

Ed Sowell
76 XJ-S

Ned wrote:> Cat wrote:

----- Original Message -----
From: Edward F. Sowell <@Edward_F_Sowell3>
To: JagLovers xj-s@jag-lovers.org
Sent: Friday, November 12, 1999 4:34 PM
Subject: Re: [xj-s] Overheating during smog tests

As I reported here earlier this year, my car passed the Calif. test after
fixing some things
that were causing rich running. I had it tested 3 times during the
process.

Ed.

What was changed after each test to bring the car into compliance? My two cars
passed, but if in two years when I am required to retest, a precheck of of
critical areas will help to reduce the test time.

Ned

10

No. I believe it’s every 2 years now. It was painful, but in view of the
problems revealed
and fixed, it was a positive experience on the whole.

Ed
76 XJ-S

Cat wrote:> For the non-US among us… do you have to go through this nightmare every

year?
----- Original Message -----
From: Edward F. Sowell <@Edward_F_Sowell3>
To: JagLovers xj-s@jag-lovers.org
Sent: Friday, November 12, 1999 4:34 PM
Subject: Re: [xj-s] Overheating during smog tests

As I reported here earlier this year, my car passed the Calif. test after
fixing some things
that were causing rich running. I had it tested 3 times during the
process. It
did not seriously
overheat, although it did get above N. All of this was before replacing
the
radiator and fan clutch. On the other hand,
I took it to a test station near home first thing in the morning, so it
was
not very hot when I got there.

The test is a 2 different speeds, 15 mph and 25 mph, under moderate load.
No
auxiliary fans were
used.

Ed Sowell
76 XJ-S