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Old 09-07-2002, 10:29 AM
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Unhappy fouling out

I have a 1965 gto convertable it currently has a 1968 400 w/manual trans. My problem is i am constanly fouling plugs! I have checked timing- right on the money. i have tri pwer setup and the rear carb leaks a little? new points, wires,plugs cap,roter ect. still? i also am expericing low oil pres at idle and i also have a hic-up( a mis on occation)no repatition to it. Can anyone help or should i just rebuild the whole thing. <img src="confused.gif" border="0">
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Old 09-07-2002, 12:10 PM
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That is a nice car. I have a 69 400 in my car. I, however, don't know anything about the tri-power setup. Sorry I couldn't help ya.
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Old 09-07-2002, 12:23 PM
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[quote] i have tri pwer setup and the rear carb leaks a little? <hr></blockquote>
I think you may have answered part of you're problem already. Always fix your known problems first. You didn't mention if your gas fouling or oil fouling.
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Old 09-07-2002, 02:14 PM
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Check your compression. If thats OK the next thing I would do is check your valve guides if they are worn you'll need to repair them. Install bronze guides and while the heads are off put in some new screw in rocker studs and machine your guides for PC seals. It could always be something as simple as bad valve seals you can replace them with the heads on with a couple of trick tools.

[ September 07, 2002: Message edited by: hcheetwood ]</p>
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Old 09-07-2002, 04:06 PM
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-Reading Your Plugs- will give you an idea if they are fuel fouled or oil fouled.

With your description, it sounds as though your mixture is rich, especially if the rear carb is leaking fuel into the intake manifold and that is causing the fouling.

Once you have the fuel delivery repaired, you might want to consider a hotter ignition system.

Also ascertain that you have the proper spark plug heat range.
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Old 09-07-2002, 04:32 PM
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Hey hcheetwood, don't you think that's a lot of work considering we haven't even confirmed if he's oil fouling or gas fouling? There's no mention of smoking on start-up, or smoking at all. Do you rebuild transmissions because there pan gaskets leaking? Thank-you KULTULZ for taking it first things first.
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Old 09-08-2002, 04:20 AM
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If you have a carb flooding and low oilpressure you need to check for gas in the oil and get it changed befor running this will waste a motor in a hurry!
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Old 09-09-2002, 06:42 PM
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DMorris... I guess I did jump ahead a little. I just don't think a little leaking gas will cause a plug to foul. (except on start up ) After its running it should dry right out. Its sure not difficult to take a compression test. Not a bad idea on a 34 year old motor. Normally the guides don't last as long as the rings and the valve seals last even less time Any how your right he needs to tell us what his plugs look like before we jump to conclusions. Hint if they are black and gunky do the above.
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Old 09-10-2002, 02:27 PM
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Yeah you never know, that's why I usually try to sort through the basics and definately always fix any known problems first. I've seen some pretty weird stuff.
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