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Old 04-30-2013, 02:23 PM   #1
randyf
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SOHC dropped valve seat - What years ?

Hello all... first post here so please be gentle with me :)

My daughter has a 2k with SOHC and it recently died. After reading many posts here, I pulled the head HOPING to find a dropped valve seat and I could replace the head, but what I found was THREE dropped seats (2 intake 1 exhaust) and NO #3 piston :eek: it had disintegrated and dropped into the pan.

There is also a nice gouge in the cylinder wall that would require a sleeve to repair so......

Now to my question.. In looking for either another motor, or another CAR. is there ANY year that the SOHC seat problem was corrected ? or is it advisable to just stick with the DOHC cars..

THANKS for any advice / criticism :)


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Old 04-30-2013, 02:32 PM   #2
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pretty sure its all years. also moving ya over to SPI chat for more help
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Old 04-30-2013, 02:45 PM   #3
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unfortunately all SPI suffer the same.

and because its so common, replacement SPI engines are more expensive than the Zetec (DOHC) counterpart.

so, if you are mechanically inclined, which it sounds like you are, it probably is less cost to buy an zetec engine and matchin transmission to swap. search the forums here to find the exact procedure and what else is needed.
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Old 05-01-2013, 01:25 PM   #4
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The SPI does appear to be more expensive than the zetec engine, but the swap is much simpler. There is a list on here of additional parts to make the zetec swap work. I don't remember them all off hand, but a search should bring it up, or a more knowledgable SPIer can help. Its not impossible, just difficult. some have saved money going that route though. But others have chosen to stick with the SPI because of the reliability of the motor (valve seat issues not withstanding) and improved gas milage. Go with what is best for your situation.

If you do the SPI swap, a new and improved head will prevent the valve seat drop, but all years seem to be affected.

I have an 03 LX SPI with 120k. meticulously maintained. no issues yet.
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Old 05-02-2013, 04:20 AM   #5
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ALL SPI engines suffer this, from the start in 97 all the way to 04, 100's of thousands of spi engines. Best bet is to go to your local pull a part yard and TRY to find one thats not as bad as yours, one that may need a .020 over bore.
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Old 05-02-2013, 04:46 AM   #6
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Quote:
Originally Posted by crazy_urn View Post
The SPI does appear to be more expensive than the zetec engine, but the swap is much simpler. There is a list on here of additional parts to make the zetec swap work. I don't remember them all off hand, but a search should bring it up, or a more knowledgable SPIer can help. Its not impossible, just difficult. some have saved money going that route though. But others have chosen to stick with the SPI because of the reliability of the motor (valve seat issues not withstanding) and improved gas milage. Go with what is best for your situation.

If you do the SPI swap, a new and improved head will prevent the valve seat drop, but all years seem to be affected.

I have an 03 LX SPI with 120k. meticulously maintained. no issues yet.
Good luck brother. I maintained the car better than my self and I babied it beyond belief. Mine went at 160K with no notice. It just died while pulling into a gas station. #4 piston.

With that said it is much cheaper to find a wrecked focus and do a zetec swap. a rebuilt SPI your looking at $2300, a complete zetec swap cost me $800.

Here is my write up.

http://www.focusfanatics.com/forum/showthread.php?t=296946

Let me know if you have any questions. I have more pics that didn't get put up.
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Old 05-02-2013, 11:56 AM   #7
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Originally Posted by TheGlassMaker View Post
Good luck brother. I maintained the car better than my self and I babied it beyond belief. Mine went at 160K with no notice. It just died while pulling into a gas station. #4 piston.
Thanks for the well wishes. I may be sitting on a time bomb, but I only drive her 100 miles a week, and she just needs to survive until I pay off my wife's car.

Thanks for the link to the write up on the zetec swap. I knew you had a good one out there, just didnt find it cause I was searching the SPI section.
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Old 05-02-2013, 03:19 PM   #8
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$2300?!?!? I may start selling these for $1400 shipped, rebuilt and alll!
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Old 05-02-2013, 03:42 PM   #9
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Yea if you look up refurbished spi on google the average price is over 2K. That's before shipping.

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Old 05-02-2013, 03:48 PM   #10
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My brothers SPI must be a miracle... Over 200,000 miles and all original....

Only work done to it was regular maintance





Paint still looks good lol




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