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Old 11-18-2003, 03:58 PM
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Lifter Noises? or not. please help

I have an 86 bronco 2, and here is what is going on. When i first got it, it was making really loud clicking noises from the engine, and im not sure if it is the lifters or not. We replaced the coil and all the sudden it just whent away for about 1 month, and then slowly started to make the clicking again, and then it was as loud as it was before so i tried switching out the coil and that didnt help at all, it was just as loud. I had new spark plugs putt into it along with new wires, and still it made the same noises. I dont know what the hell it is. I was driving to school and it started to make the noise again really loud, and it lost like 50% of its power, and tried to die a couple of times. If anyone could help me that would be great, because i cant drive it until i find out what the hell is going on
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Old 11-18-2003, 04:53 PM
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kinda hard to tell from what you said except that when you first changed coils it went away. that makes it seem like it must be arcing and sparking. look at the motor at night.
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Old 11-18-2003, 06:46 PM
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I just whent out side and started it up. When i started it the tapping noise was there for a sec and then just whent away. So i turned it off and did some work on it and about 10 minites later i turned it back on and it made the tapping sound for a couple of mintues so i putt my foot on the gass for a couple of seconds and it whent away, its like when the oil pressure builds it goes away. I took it down the road when it wasnt making the tapping sound and when i started to accelerate after a couple of minutes of driving it started again, so i parked it back at the house and let it sit while it was making the noise and putt my foot on the gas a little and it whent away again. I Dont know if it is just not getting enough oil pressure or not, the gauge reads half way. I have 5 W 30 in it right now so im sure if that is to thin, or if it isnt the lifters at all.
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Old 11-18-2003, 06:59 PM
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Do you have hydraulic lifters on that? If so I think it`s that.

As the engine warms up your oil pressure does not increase..if anything it will decrease because the oil is hot and turns from a thick to a thin oil.
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Old 11-18-2003, 08:58 PM
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Im not sure what kind of lifters are on it, but before when i was running 10 W 30 it didnt seem to do it as bad, i was thinking it that the 5 w 30 i got in there might just get to thin when it warms up, but i could be wrong. Ive seen on a couple of sites that it is a defect and that it can not be fixed
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Old 11-18-2003, 09:38 PM
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It sounds kind of like some of the symptoms my car is experiencing. I am doing a teardown because I suspect a broken piston. Hope yours isn't the same. The way I checked was by pulling one spark plug at a time untill I got to the cylinder with the problem and the noise stopped. It is easy to do and it will help narrow down the possiblilities.
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Old 11-18-2003, 09:51 PM
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Yeah but if i pull the plugs off one by one, shouldnt it still make the lifter noise since the cam is still hitting that lifter? Im about to just give up on this thing man, i think it is going to cost me more time and money then it is just to finish off the work on my70 stang, the only reason i bought this thing was becuase i need it for the winter. Thanks for all the help
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Old 11-18-2003, 10:16 PM
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its a lifter or an exhaust leak, they sound the same. Given the symptoms of your car dying and all, its probably the lifter. I'm willing to bet this motor has a lot of miles on it. THe noise is either caused by a lifter that's stuck in its bore by varnish or collapsed and needs to get pumped back up. That's a typical lifter thing to do to tap for a couple seconds and then go away during start up, means it lost all of its oil and took a second to fill back up. Pull your intake and put a new set in it. Use a light abrasive to get the crap out of the lifter bores. Remember when you take the lifters out, its a really tight fit so take them exactly strait out of the bore. Also remember to soak your new lifters in whatever your preferred oil is for at least 24 hours before installing them. Might want to do a cam break-in procedure for the new lifters just for good measure. Change the oil after you do all this.

K

BTW, just remembered. Before you do this, try putting some top end lube in your motor like marvel and see if that changes anything. Give it a week or so before you tear into it. YOu can get decent lifter from summit for under 50 bucks.
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Old 11-19-2003, 02:03 PM
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thanks for the help, ill try and see if that will fix the problem. It doesnt have to many miles its just busting 100,000. I just cant beleive that make **** engines these days that start to mess up after that low of miles, when i had an old dodge dart that had been rolled over twice and never gave me a problem.
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