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Smoking on startup only?

 
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Old 09-10-2010, 07:09 PM
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Smoking on startup only?

I have an 88 honda prelude s model and recently it has started chugging in the mornings when i start it up. This chugging is accompanied by lots of smoke. Then after alittle it will go into it's high idle and warm up. I have been told that it could be bad piston rings but more likely that it is bad valve guides or valve seals/both. Love some help if anyone has got some. Thanks
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Old 09-10-2010, 07:45 PM
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Re: Smoking on startup only?

you pretty much narrowed it down yourself. valve seals, guides, or piston rings. compression test will tell you if its the piston rings. if one or more pistons is really low, thats your culpret cyl.. but might as well replace them all if you're gonna open it up. and if its the guides or seals, might as well replace both if you're gonna open it up also. and really if you're gonna open it up anyways to replace anything, you might as well replace everything. it will only save you the headache of having to open it up all again to replace something else. that also depends on if you're planning on keeping it too. if you want to sell it, just replace what you need to.

by the way, how many miles do you have?
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Old 09-11-2010, 12:23 AM
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Re: Smoking on startup only?

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Originally Posted by Beaker View Post
you pretty much narrowed it down yourself. valve seals, guides, or piston rings. compression test will tell you if its the piston rings. if one or more pistons is really low, thats your culpret cyl.. but might as well replace them all if you're gonna open it up. and if its the guides or seals, might as well replace both if you're gonna open it up also. and really if you're gonna open it up anyways to replace anything, you might as well replace everything. it will only save you the headache of having to open it up all again to replace something else. that also depends on if you're planning on keeping it too. if you want to sell it, just replace what you need to.

by the way, how many miles do you have?

this, or buy a used engine and drop it in. rebuild your current one while its out of the car.
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Old 09-11-2010, 01:47 AM
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Re: Smoking on startup only?

Beaker was dead on in his answer. I thought valve seals right away.
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Old 09-11-2010, 04:38 AM
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Re: Smoking on startup only?

Quote:
Originally Posted by Beaker View Post
you pretty much narrowed it down yourself. valve seals, guides, or piston rings. compression test will tell you if its the piston rings. if one or more pistons is really low, thats your culpret cyl.. but might as well replace them all if you're gonna open it up. and if its the guides or seals, might as well replace both if you're gonna open it up also. and really if you're gonna open it up anyways to replace anything, you might as well replace everything. it will only save you the headache of having to open it up all again to replace something else. that also depends on if you're planning on keeping it too. if you want to sell it, just replace what you need to.

by the way, how many miles do you have?
I'm going with rings on this 1 just from personal experience. What color is the smoke?
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Old 09-11-2010, 11:36 AM
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Re: Smoking on startup only?

I've got about 145,xxx miles on it and the smoke is whitish blue. It smells like oil burning tho even tho the smoke is white and not black. Is it possible to have a leaky head gasket and only have trouble with it during the first part of running and not later while driving?
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Old 09-11-2010, 11:37 AM
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Re: Smoking on startup only?

Also, i have an ecu code for oxygen content b and coolant temp senor i believe. Could this effect startup?
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Old 09-11-2010, 11:41 AM
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Re: Smoking on startup only?

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Originally Posted by Honda95 View Post
I'm going with rings on this 1 just from personal experience. What color is the smoke?
I've got about 145,xxx miles on it and the smoke is whitish blue. It smells like oil burning tho even tho the smoke is white and not black. Is it possible to have a leaky head gasket and only have trouble with it during the first part of running and not later while driving?
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Old 09-11-2010, 11:42 AM
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Re: Smoking on startup only?

Quote:
Originally Posted by Honda95 View Post
I'm going with rings on this 1 just from personal experience. What color is the smoke?
Also, i have an ecu code for oxygen content b and coolant temp senor i believe. Could this effect startup?
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Old 09-11-2010, 02:04 PM
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Re: Smoking on startup only?

I had a car that the rings screwed up on me and on first start up when the engine was cold it would smoke like a mofo and it would be white smoke. Another thing have you checked your oil? I was goin through like 3 quarts a week. I'm unsure about the sensors someone else can help you out on that.
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Old 09-11-2010, 02:26 PM
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Re: Smoking on startup only?

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Originally Posted by Honda95 View Post
I had a car that the rings screwed up on me and on first start up when the engine was cold it would smoke like a mofo and it would be white smoke. Another thing have you checked your oil? I was goin through like 3 quarts a week. I'm unsure about the sensors someone else can help you out on that.
I'm not too sure on oil. It seems to be fine as of now. Probly going to get lower as time goes on. So is it a timely and expensive job to fix the rings? you mean piston rings and not the valve seals correct?
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Old 09-11-2010, 06:35 PM
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Re: Smoking on startup only?

piston rings is what i'm talking about. Expensive?? can be, just better to go ahead and get a good used engine. what engine do you have so i can check some places for that i'v dealt with for engines before.
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Old 09-11-2010, 06:58 PM
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Re: Smoking on startup only?

Quote:
Originally Posted by hockeydude515 View Post
I've got about 145,xxx miles on it and the smoke is whitish blue. It smells like oil burning tho even tho the smoke is white and not black. Is it possible to have a leaky head gasket and only have trouble with it during the first part of running and not later while driving?
burning oil is gonna have a bluish hue to the smoke. black is excessive fuel. white is coolant.

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Originally Posted by hockeydude515 View Post
Also, i have an ecu code for oxygen content b and coolant temp senor i believe. Could this effect startup?
this won't cause a bluish smoke. but if your coolant temp sensor is bad and its always sensing cold you could be running rich all the time. same goes for the oxygen sensor. a defective oxygen sensor will set the computer to safe mode and you run a little rich. its just safer that way.
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Old 09-12-2010, 12:24 AM
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Re: Smoking on startup only?

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Originally Posted by Honda95 View Post
piston rings is what i'm talking about. Expensive?? can be, just better to go ahead and get a good used engine. what engine do you have so i can check some places for that i'v dealt with for engines before.
It's a carburated B20A3.
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Old 09-13-2010, 10:35 AM
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Re: Smoking on startup only?

found a b20 but its not carburated for $840
maybe you can find them cheaper somewhere else, but this is from a place that i've dealt with personally
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Old 09-14-2010, 07:52 PM
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Re: Smoking on startup only?

It will not be the rings unless he's accelerating.

Its valve guide seals whenever it smokes when you start it up or at idling. If it was the ring, it would only smoke when you floor it on the highway or anytime you're driving.
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