89 civic si

My SI makes some engine noise between 2500-3200 rpms. When you step on
the gas, its like a knocking sort of sound. I thought that i might be
the pipe for the exhaust has rusted and popped a hole. The car is
running on 92 octane. Something I can test on my own??


Thanx, Chris.

 

check the motor mounts.

 

Heat shield on exhaust; A-pipe rattle; pinging.

Octane means nothing.

You can check the exhaust yourself by crawling underneath the properly
jacked-up car and wiggling/poking/tapping all shields still attached.

Check ignition base timing.

Got a Check Engine light on?

 

I just mentioned the octane to get over the engine knock.


No check engine light. I don't have a strobe, so checking the timing
might be hard..

Can I do that with a fluorescent tube ?

 

You might be able to rent a timing light.

I can't see a fluorescent tube working. What's its setup? Is it just a
hand-held lamp of some kind or can it clip to the spark plug wire?

 

In the '70s I used to see neon timing lights for sale, really cheap. They
were pretty straightforward, just a large neon bulb in a reflector. I never
tried one, but the word was they were only useful in the dark.

Mike

 

Most only really work /well/ in near-darkness, even the latest xenon-strobe
models I've used.

 

Oh, and in response to TeGGeR: my latest timing light, a very basic xenon-strobe
type, I got at a pawn shop for $15. No point in renting if you can find a deal
like that

 

Theres an idea..
maybe a stroll through one might be good.

 

I also bought my timing light at a pawn shop, IIRC for $15
as well.

Ebay also often offers perfectly good timing lights at a
reasonable price, but they seem to go fast.

 

99 cents a good price?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260020438411

Just search for "xenon timing light" - there's a ton listed for various prices.
The one above is also listed at an eBay Store for $15 "Buy It Now".

 

Sure, but I think this is one of those ebay deals where the
seller makes his/her money from the shipping charge. It is
$12. I see the light finally went for $5 or so.

Anyway, you bet I think Ebay is pretty good for automotive
tools. I've bought several using it.