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Old 10-25-2002, 10:25 AM
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Post Exhost combustion

I know this board is for Rod's, and by no means is what i have now a Rod. (more like a leaf blower with 30' snow tires) So if there is another board anyone knows of that would be a more approperate place for me to recieve help with the Wanna-Be-A-Jeep I am open for suggestions.

If no one minds i ask questions about a rice burner here, i shall do so.


I dont know the proper term of my problem, and i know that 'Back Fire' is not it, but it is the only way i can think of to explain it.

When i let off the gas, it sometimes 'back fires', but in the exhost pipe somewhere. Is this my timing is off or that i need to severly adjust my valves?

It has done this since i have owned it. It does not always to it, just when i am being ruff on it.

The motor tops out at 5 Grand. When i am being dumb i will hold a gear until 4 ˝ grand. As soon as i shift, it 'back fires' in my exhost system. I dont know if it is in the muffler or in the pipe.

It does not smell as if it is running rich, and it dont act that way, but i know that is usually what causes these combustions in the exhost.

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Old 10-25-2002, 11:01 AM
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Personally speaking, I don't mind trying to help with legitimate questions about any cars. The whole "rice" thing has gotten way out of hand soley because of the flame posts that people put up (myself included <img src="graemlins/nono.gif" border="0" alt="[nono]" /> ).
So what type of car is this and what type of engine?
As for the Jeep question, is it an actual Jeep? If so, I would recommend heading on over to <a href="http://www.moparchat.com" target="_blank">moparchat.com</a>. They have a seperate section just for Jeeps there.
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Old 10-25-2002, 12:52 PM
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Definitly sounds like a back fire to me, check that there aren't any ehaust leaks and if tthat does'nt fix it than start looking at the carburater of whatever fuel management system it uses for problem
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Old 10-25-2002, 01:23 PM
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Air leaks into the exhaust will cause your problem, have you drilled the muffler? A rich mixture will cause raw fuel to collect in the muffler which could ignite and give you that "rocket" effect? :p Does it only happen when you "street race" or whenever you shift at redline which you say is 4500 rpm? <img src="graemlins/boxing.gif" border="0" alt="[boxing]" /> You could try to shift without lifting the throttle which might reduce the problem <img src="graemlins/mwink.gif" border="0" alt="[mwink]" /> ? What size muffler are you running? Is your cold air kit plastic or aluminum? Wings and spoilers can cause a lean backfire condition at super legal speeds, try less rear wing? Stickers in the engine compartment can cover necessary bleed ports so check them carefully. Do you have pink sparkplug wires, they are known to be limp?

In case your wondering I am pulling your leg. Just for fun!
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Old 10-25-2002, 01:40 PM
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Thanks, Chuck.
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Old 10-25-2002, 01:42 PM
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Try www.cliffordperformance.com They have a big jeep section to. HG
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Old 10-26-2002, 10:19 AM
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Naw, it is an 88 Suzuki Samurai. It is most like a Geo Tracker. But it is Japan made. With a 1.3 Liter InLine 4 banger with a carb.

Only stickers on my whole thing is the one that says "Horn Broke Watch for Finger", and "Keep Honking, I'm reloading."

I have just redone the entire exhost system. It is not right, but it is good. There are 6 exhost clamps within 4 feet. Muffler is 108.99, so the glass pack is still on there from when i bought it. No leak what so ever.

Wings and spoilers LMAO, yea right. You know how rediculous that would look on this thing.

super legal speeds - It tops out at 60 MPH holding 4500 RPM. Which is probably not so bad, any faster and it is a serious death trap.

Its not back fire. Back fire come up through the carb. This is errrr, ah, after fire.

It is just sort of sad when I shift, it sounds like i just shot something with and elephant gun.

I am getting my lil brothers 75 Camero (built 350, and the works) So if this does not get fixed no biggie, just wanting to know why it is doing this and increase the ol knowledge.
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Old 10-26-2002, 11:46 AM
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its, ummmm... just your afterburners kicking in. You need to hit the boost button found under the dash board more often :p
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Old 10-26-2002, 11:59 AM
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Talking

If this has a belt driven air pump remove the belt and try
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Old 10-26-2002, 02:29 PM
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I had pretty much this same problem on an older VW motor. What you want to look for is any gap between the exhaust manifold and the head. If there is any gap there at all this is where your problem is coming from. Hope this helps. (p.s. check back a few posts and look for “BOOOM”)
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