EMISSIONS: After all that...the results....

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ed - 28 Oct 2004 00:01 GMT

Well, I had the 86 XJ6 tested for state emissions as required by LAW.
(big whoop)

Here's the results.

HC 521 of 220 PPM FAIL
CO .83 of 1.20 PCT PASS
CO2 13.66 of 6.0 PCT PASS

Failing any one of the three means ya FAIL <period> here.

My debackle with the plug wires was still worth the trouble, but it
didn't help my readings. They were near that figure last time.

Now, what indications do I have on this thing you ask? I have a
slightly sporadic (low) idle in gear with my foot on the brake, and I
can feel an occassional miss. The exhaust has a little leak but not that
bad. The 521 reading was like 1200 a few months ago when I had
accidentally put gas from a gas can from home which was intended for a
weedwacker and had oil in it! <yes I know it was a dumb thing thanks> A
test a few weeks after that really bad one yielded me a 750 reading
after running some good gas and some cleaners through the system. I have
ran several several several several tanks of gas (some with cleaner)
since and I don't think the 521 number is going to go away without
further repairs. I am now looking into a possible sticky injector
maybe. Your thoughts?

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Jerry McG - 28 Oct 2004 01:44 GMT

What is the oil consumptionon this engine?

> Well, I had the 86 XJ6 tested for state emissions as required by LAW.
> (big whoop)
[quoted text clipped - 22 lines]
> further repairs. I am now looking into a possible sticky injector
> maybe. Your thoughts?

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ed - 28 Oct 2004 03:33 GMT

Actually, I'm not 100% sure of the oil consump. but it needs a couple of
quarts every couple of months. It doesnt appear to smoke. Having oil in
the gas the one time simulated oil blowing by the rings I would imagine,
hence that very high number the one time, and I presume this is what
your thinking with my oil cosumption? I may agree with this. I do add a
lot of oil, and it's not leaking THAT much, if any. Should I stick some
oil thickening products in before the next test?

ALso, I should explain the numbers more. (for those not familiar)

My HC is 521. Its supposed to be below 220. BAD

My CO is .83 Its not allowed to be above 1.20 GOOD

My CO2 is 13.66 about should not be below 6.0 GOOD

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Jerry McG - 28 Oct 2004 04:48 GMT

It's very likely your high HC readings are due to exceesive oil consumption.
I'd suggest you get a leakdown test to see if there's a ring wear issue. If
that's ok, I'd have a look at the valve guides & seals.

> Actually, I'm not 100% sure of the oil consump. but it needs a couple of
> quarts every couple of months. It doesnt appear to smoke. Having oil in
[quoted text clipped - 11 lines]
>
> My CO2 is 13.66 about should not be below 6.0 GOOD

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ed - 28 Oct 2004 05:22 GMT

I have a good compression gauge, and I saw good static compression at
least, but I guess that does mean the leakage is good. I'll report what
I find and thanks in advance.

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Blake Dodson - 28 Oct 2004 15:03 GMT

> I have a good compression gauge, and I saw good static compression at
> least, but I guess that does mean the leakage is good. I'll report what
> I find and thanks in advance.

High HC with a low CO indicates a lean running condition. This is
re-inforced because you speak of a loping idle with a slight miss.

It could be a vacuum leak in the intake system, a out of spec.
electronics system, or a failing catalyst. Had it been failing rings
or a rich condition your CO would be high too.

DieInterim

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