Mitsubishi: Sluggish Laser
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Sluggish Laser
I need a second opinion.
1991 Laser, 1.8 liter, 265,000 Km
Problem:
Loss of power when climbing hills.
Seems to be OK on level roads.
History:
I changed the timing belts within the last three months.
Before the belt change, the car sat idle for 5 months (periodic starts
about every couple of weeks). Driver (my son) claimed that there was no
loss of power before the storage.
Attempts;
We've changed the air filter.
Next is a injector cleaning.
But the question I have is:
Could it be that the catalytic converter is plugged, and how do you
test it.
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Re: Sluggish Laser
You sure the timing belt is on correctly? Sounds like it may be off a tooth
or two causing the retarded timing condition. It may be worth removing the
cover to take a look and make sure all the marks are aligned exactly as they
should be...
"Nirodac Yar" <com> wrote in message
news:fb0Jd.48561$..
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Re: Sluggish Laser
"Bob Shuman" <worldnet.att.net> wrote in
news:mCgJd.82400$ops.worldnet.att.net:
When I replaced the timing belt (with 120K Km on it), I checked the new one
three times. When I removed the old belt from the balance shaft, it seemed
to be out about 1/2 to 3/4 of a tooth, I aligned all the teeth on all the
sprockets and even rotated the crank by hand to make sure that the markes
lined up on the next revolution (also replaced the tensioners). But I
guess it could still happen. Can this be measured in some way with the
engine running.
Car starts OK, in the morning now. Immediatly after the belt change it
would stall, but it only did it a couple of times and doesn't do it
anymore.
I haven't checked the gas line (pump and filter) or the emissions system
yet.
Thanks for all the input, now I have something to check.
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Re: Sluggish Laser
You can check it with a timing light. I'm not really familiar with the 1.8L,
but I would bet it is supposed to be 5 degrees of basic timing like all
other Mitsus. You will need to ground the base timing terminal and then
start the car. The terminal is a brown connector behind the battery (check
vfaq.com for more).
--
Todd Honea
"Nirodac" <com> wrote in message
news:80.55.250...
one
seemed
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Re: Sluggish Laser
Yea, it occured to me after I sent the post that a timing light would work.
Actually I had though of measureing the output of the TDC sensor, then
looking for the timming mark on the pulley. Then the light when on and
said,just use a timing light, god I hate old age.
Sometimes I get to complicated for my own good.
But I didn't know about the connector by the battery. My history is with
old American V8's.
"Nobody U. Know" <com> wrote in message
news:OHpJd.24007$columbus.rr.com...
1.8L,
the
markes
system
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Re: Sluggish Laser
If you don't ground that connector, it will vary a bit and be about 15
degrees. I had a similar problem with my GT/VR4 and I had it off a tooth on
the crank. It was obvious with the timing light. The good thing was it was
very easy to loosen and slip it back into time. It's not as bad as a whole
timing belt job.
--
Todd Honea
"Nirodac Yar" <com> wrote in message
news:6SCJd.149642$..
work.
(check
a
new
the
it
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Sluggish Laser
I'd like to thank all those that made suggestions about my problem with
the 91 laser with poor performance after the timing belt change. It
wasn't the cat as I suspected.
The problem was indeed the timing belt. It was out by one tooth. The
fix was easy, just slacken the timing belt, pull it off the cam
sprocket, advance the sprocket one tooth, reinstall the belt and
readjust the tension. I thought I checked that belt three times before
I reassembled it, but shit, I guess I should have checked it four times.
One tooth makes about 20 degrees difference.
Got a new timing light out of the deal, as my old one packed it in just
as I started the repair of the repair.
Thanks again
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