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I drove my 1997 ford escort to the store the other day it ran great on the way there but on the way back it started knocking really bad and had lost lots of power. It still starts right up every time I try but has a hard time idling and has little to no power. Could this be a timing belt issue? it sounds like the valves are knocking really bad , If you have any ideas please let me know it's a 2.0 4cyl engine Split Port Induction 2000.
 

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I had a motor do that and had a shop replace the motor with a used one.

Now just a short time ago the replacement motor made a bad noise at start up and after removing the head I found it had dropped a valve seat.

See this thread http://www.feoa.net/modules.php?name=Fo ... ic&t=63057

My guess is a dropped valve seat but the more you run it the more damage you are doing. Look how much damage I did with the engine running no more than 5 seconds with a dropped valve seat.
 

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Pull the spark plugs and see if there's any damage to any of the electrodes. If one of them is smashed then it's probably a valve seat dropped. Or you can run a compression test to see if the compression is down on any of the cylinders.
 

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Discussion Starter #4
Ok so I pulled all the plugs and the far right one looking at the motor is bent bad so I tried to start it with out it in there and it still made a noise does that mean I've got a dropped valve seat? And do I have to replace the whole head or just the valve and how difficult is it to remove it? I repair and maintain my honda bikes and trikes rebuilding engines so I have a good idea of whats involved with the timing chain valves etc. Thks
 

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More than likely. 99% or so. If you have some mechanical background it is not hard at all. Make SURE you check the piston, not only on top but from below as well by dropping the pan. Ask me how I know. It is a good idea to replace or rebuild head with better valve seats so this doesn't happen again. Ive done it three times with different vehicles, two 97's and one 98.
 

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mine have SS Racing Seats very expensive SHT but they are made at ford revision on this head.

Better than buying a new head.
 
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