ATV Riders Forum > Sport ATV Model Information > Honda TRX 250R ATV Info > Effects of exhaust leaking
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gojk
01-15-2007, 02:17 PM
My Paul Turner eliminator pipe leaks right were the exhaust mounts to the motor. What are the effects of this happening and what can I do to fix it. I just replaced the springs with 2 brand new springs. Thanks in advance for the answers.
iamjasyn
01-15-2007, 03:46 PM
They're kinda notorious for that actually. I don't konw that it's a huge deal unless the metal itself is misshaped or something. I bought an Al piece off ebay wiht dual viton o-rings instead of that asbestos stock ring. By the way, if you don't have the asbestos stock ring, that might be a good place to start.
matt250r21
01-15-2007, 04:53 PM
I would seal that thing up good with some ultra copper or black high temp silicone goo. You could run the risk of seizing your motor by sucking fresh air back into the cylinder through the head pipe leak.
spent21
01-15-2007, 05:01 PM
ditto.
i bought the aluminum exhaust ring that bolts to the cylinder as well. i LOVE that thing. a little high temp silicone never hurt either.
depending on how bad the leak is, it IS possible to seize the piston since the leak creates a lean condition.
good luck.
RichM1983
01-15-2007, 05:26 PM
I have read that the motor can suck dirt and things back in the motor when the exhaust leaks next to the cylinder. I can't remember who posted that though.
C-LEIGH RACING
01-15-2007, 05:33 PM
:D
Ask me what it will do to a blaster engine when its leaking in that area.
Well, that was a brand new piston.
Neil
gojk
01-15-2007, 05:38 PM
What about power loss? It seems like the engine doesn't rev up like it should.
C-LEIGH RACING
01-15-2007, 06:32 PM
When you said it was leaking, did you mean it was gooie oil stuff coming out or exhaust smoke.
When the pipes not sealed up good in the area next to the cylinder, it can suck raw air, dirt, water, what ever is around that area into the engine from the returning wave of the pipe.
Power loss, maybe just a little, but not enough to notice or feel.
Neil
gojk
01-15-2007, 06:36 PM
Originally posted by C-LEIGH RACING
When you said it was leaking, did you mean it was gooie oil stuff coming out or exhaust smoke.
When the pipes not sealed up good in the area next to the cylinder, it can suck raw air, dirt, water, what ever is around that area into the engine from the returning wave of the pipe.
Power loss, maybe just a little, but not enough to notice or feel.
Neil
Mainly just oil, but it does look like it is blowing some of that oil on the the parts surrounding the area, which leads me to believe that exhaust gases are leaking also.
Crazy lil punk
01-15-2007, 08:38 PM
what if it only leaks alittle smoke at start up? is that okay? sorry, dont mean to thread jack
C-LEIGH RACING
01-16-2007, 07:27 AM
Originally posted by gojk
Mainly just oil, but it does look like it is blowing some of that oil on the the parts surrounding the area, which leads me to believe that exhaust gases are leaking also.
Thats probably not that bad then.
As ugly & messy as it is, that oily mess comming out, thats somewhat a good sign, means your engine is getting plenty of fuel to keep everything lubed & cool.
You should see my engines, I run them way fat so we have bunches of that oily mess, that is, when I can keep the kids dads from playing with the jets. Thats a job right by itself, trainning the kids dad what NOT to do.
Neil
Tom TRX250R
01-16-2007, 11:43 AM
Buy an ESR aluminum exhaust flange www.
esr250.com with the orange high temp rings. Then buy some high temp silicone (the stuff I use is orange) and apply it on both the exhaust flange where the pipe slides over and also where the gasket is as well. After doing this I would guarantee it won't leak. I have fixed a lot of R's leaking oil problems with this.
86 Quad R
01-17-2007, 08:09 AM
Originally posted by Tom TRX250R
Buy an ESR aluminum exhaust flange www.esr250.com with the orange high temp rings. Then buy some high temp silicone (the stuff I use is orange) and apply it on both the exhaust flange where the pipe slides over and also where the gasket is as well. After doing this I would guarantee it won't leak. I have fixed a lot of R's leaking oil problems with this.
same technique i use. works well.
for safe measures i also slide a hi-temp o-ring up the flange while sliding the pipe on. once everything is in place. the o-ring rolls back down against the mouth of the pipe.
sdyme1995
01-17-2007, 04:39 PM
would a leak in this area cause a bit of a pop in the exhaust, also sorry for the jack but it is along the lines :)
C-LEIGH RACING
01-17-2007, 06:01 PM
I dont know, thats something & never done any testing on.
I have had some engines that had a extra poping like sound in the exhaust, but when we changed the ignition or carb it went away.
Neil
Scott-300ex
01-19-2007, 02:22 PM
My 250r leaks oil where the cylinder and the exhaust meet, every other quad I have seen has too. Its normal.
But if there is an air leak then it could mess up your jetting a little and you need backpressure for that thing to run right.
Scott-300ex
01-19-2007, 02:23 PM
My 250r leaks oil where the cylinder and the exhaust meet, every other quad I have seen has too. Its normal.
But if there is an air leak then it could mess up your jetting a little and you need backpressure for that thing to run right.
hondardr4life
01-21-2007, 11:36 AM
If it leaks bad enough it will rev uncontrolably on startup, Kinda liek mine, lol...
86 Quad R
01-22-2007, 12:30 PM
Originally posted by hondardr4life
If it leaks bad enough it will rev uncontrolably on startup, Kinda liek mine, lol...
this is true.....
C-LEIGH RACING
01-22-2007, 01:00 PM
Originally posted by 86 Quad R
this is true.....
Then,,, what happens after it does that,,
Neil
86 Quad R
01-22-2007, 01:07 PM
i've seen some lean out and sit there en surge at medium to high rpm's and i've seen others just rev. it kinda depends on the out side air temps.
norcalduner
01-22-2007, 11:43 PM
Originally posted by hondardr4life
If it leaks bad enough it will rev uncontrolably on startup, Kinda liek mine, lol.
..
this happens on mine too:(
C-LEIGH RACING
01-23-2007, 08:14 AM
And it results from,,,,
Neil
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ATV Riders Forum > ATV Riders Mechanical Section > ATV Powertrain > exhaust leak effect performance??
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View Full Version : exhaust leak effect performance??
sica
12-20-2003, 06:00 PM
i cranked up my 03 400ex this morning and it was cold so you could see the exhaust and i noticed there was a little coming from where the exhaust meets the head......i have a full dmc alien exhaust....will this slight leak effect anything...if so how can i correct it??
AlaskaSpeed
12-20-2003, 06:06 PM
yes, it will affect performance. Get a new set of copper crush gaskets and retorque. Having the leak there can do more harm than good; ie.
..burnt valves, etc........JIM
Cody_300ex
12-20-2003, 06:33 PM
Originally posted by AlaskaSpeed
yes, it will affect performance. Get a new set of copper crush gaskets and retorque. Having the leak there can do more harm than good; ie...burnt valves, etc........JIM
Well said! ;)
sica
12-20-2003, 08:06 PM
where do i get them??
is that the technical name for them so when i go ask for them they will know what i am talking about..
Aceman
12-20-2003, 08:23 PM
yes, copper crush gaskets
sica
12-20-2003, 09:21 PM
where can i get them??
Woodsrider
12-20-2003, 11:13 PM
At your Honda dealer, there about four bucks a peice I think.
Or go to servicehonda.com if you want to screw around with shipping and waiting for the stuff to get there.
sica
12-20-2003, 11:18 PM
thanks for the help.
....do the old ones just pop out???
Woodsrider
12-20-2003, 11:20 PM
If they are even in there, you may have to use a small screw driver to pick them out. But they will come out pretty easy.
sica
12-20-2003, 11:35 PM
what do you mean if they are in there???
will they be metal or like a soft gasket...
sorry to ask soo many ?'s but i am engine dumb.....
also could this leak be the cause of my backfiring problem that i can not seem to get fixed?? after countless times of rejetting...
JOEX
12-20-2003, 11:41 PM
Some of 400's came without the gaskets, mine didn't have any but I put them in when I did the weld grind thing.
They are metal, kind of like a metal o-ring made of copper.
Joe
cals400ex
12-21-2003, 02:45 AM
Originally posted by JOEX
Some of 400's came without the gaskets, mine didn't have any but I put them in when I did the weld grind thing.
They are metal, kind of like a metal o-ring made of copper.
Joe
are you sure they didn't have any in there?? just wondering because mine were black from exhaust and they were smashed so it really looked like nothing was there. however, after some picking with a skrewdriver i realized they were in there.
Woodsrider
12-21-2003, 09:21 AM
There were none in mine. But i got my quad used. The guy who had it before me may have tweaked the bike, then put it back to stock when he sold it. But when I had the stock pipe on there it didn't leak. when I put the new pipe and silencer on it I had to buy gaskets to correct a popping at the head connection.
sica, regaurdles if you have them or not, if your backfiring on decel, and jetting doesnt correct it, I would bet that is your problem. If you do have them but didnt replace them when you removed and reinstalled the head pipe, do so now. Then recheck your jetting.
cals400ex
12-21-2003, 08:52 PM
Originally posted by sica
what do you mean if they are in there???
will they be metal or like a soft gasket.
..
sorry to ask soo many ?'s but i am engine dumb.....
also could this leak be the cause of my backfiring problem that i can not seem to get fixed?? after countless times of rejetting...
i believe it could cause a backfiring problem with an exhaust leak. i would get these gaskets. yes, they are a soft metal. if it is still backfiring on deceleration, i would turn your fuel skrew on the bottom of the carb out a little bit and see if that reduces the popping.
sica
12-21-2003, 09:28 PM
thanks for all the help guys.....
BigBadJ-400ex
12-22-2003, 06:59 AM
I had the same problem, I went out and bought 2 crush gaskets for it..all i can say is good luck! They were a major pain in the ***** to get on and it still didnt fix the leak.....I ended up getting some high temp gasket maker and made a bead around both head pipes..Don't laugh but hey, it worked!!( for now) ...exhaust leaks are teh suck! I hope you have better luck then I did.
..
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Photo tours2piste.com
Sometimes, to determine whether a person is healthy, just look at him. It's the same with a car. Some problems in it can be diagnosed without even lifting the hood. Take at least the condensate that occasionally pours out of the exhaust pipe. Its color and smell can tell the car owner a lot. And about what exactly, the AvtoVzglyad portal will tell.
Efim Rozkin
The formation of condensate in the exhaust pipe is a natural process that should not be frightened. A small amount of water is formed due to the temperature difference inside the exhaust system and outside - normal physics. The heated steam, cooling, settles in the form of water droplets on the walls of the muffler.
And when starting the engine and when starting from a place, it simply flows out of it. In winter, the resulting condensate can freeze inside the exhaust system, but as the engine warms up, the catalyst and the exhaust system as a whole, the ice melts, again turning into water. It is much more important to pay attention to the "composition" of the fluid flowing out of their muffler.
So, for example, transparent condensate indicates the overall health of the engine and exhaust system. Also, the liquid can be dark and even black. And this is also considered normal. During the operation of the car, various deposits and soot accumulate in the muffler. As a matter of fact, they are washed out by the moisture formed inside.
But black soot in large quantities on the inside of the exhaust pipe may already indicate that it is necessary to pay attention to the particulate filter and catalyst. And at the same time, you should definitely check the quality of the mixture entering the engine.
It can be both over-enriched and unenriched. Both are bad for the engine. Power drops, consumption rises, candles are poured and much more. If yellow water flows from the exhaust pipe, this indicates that the fuel contains a lot of sulfur or additives. In this case, it is worth changing the gas station.
Photo avtovzglyad.ru
A beautiful water color of the coolant used in your car's engine should be of great concern. Remember if your thermostat is not acting up, which is responsible for turning on the radiator fan, and whether you have overheated the motor. This can cause antifreeze to get into it (and subsequently into the exhaust system). At the same time, white smoke with a chemical smell will pour out of the exhaust pipe. Serious engine repairs can not be avoided.
Blue smoke also indicates problems with the power unit. There can be anything: from wear of valve stem seals or rings, to damage to the cylinder head. In this case, the liquid pouring out of the exhaust pipe will contain a large amount of engine oil.
In a word: keep an eye on the quality of the exhaust and the color of the condensate. They will help you identify problems with the engine, fuel, exhaust and cooling system. Refuel at trusted gas stations and be serviced by trusted craftsmen. And your car will serve you faithfully for the entire period allotted to it by the manufacturer without any serious problems.
108556
What to do, so as not to catch the deadly infection
142867
engine, car service, repair, maintenance
We will not describe the understandable nature of deposits in the muffler, fumes, soot, rust, as a result, exfoliating from the walls of the muffler, block or create difficulty in the exhaust.
To correct the current situation with the muffler, it is proposed to clean it. To do this, you can use several practical methods. It should be noted that the proposed methods differ in the level of complexity, as well as the level of efficiency achieved in cleaning. Heavily clogged mufflers require serious intervention, up to cutting the body, but first things first.
We clean the muffler with a cable.
The use of a cable is one of the most common methods that is easy to clean mufflers with light to medium carbon deposits. One of the ends of the metal cable should be clamped into the drill chuck. The second end of the cable should be dissolved, making something like a ruff. It is necessary to consistently move into the muffler pipe with a cable. In this case, the pipe should not be removed from the ATV. The rope must be turned slowly. Cleaning should be done until the rope stop is reached.
Chemical muffler cleaning.
The second method involves the use of such a tool as "Mr. Muscle". You can buy such a powder at any store; it is intended for cleaning clogged sewer pipes. The muffler must be removed for cleaning in this way. Then everything is simple: pour the powder diluted in hot water into the muffler, after closing one of the holes with a wooden gag and shake it well. We repeat the procedure several times. There are also special chemicals for muffler cleaning, for example: LIQUI MOLY DPF Cleaner. The expediency of choosing this method is noted when there is a small amount of deposits in the muffler.
Cleaning the muffler with a gas burner.
You can also use a gas torch or a blowtorch, the method is suitable for fairly heavy muffler clogging. We warm up the muffler well from all sides over an open fire (some use a fire), then tap the pipe stacks with a wooden mallet or stick so that the soot exfoliates. Then we thoroughly blow the muffler with a compressor.
