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SPI Performance (2000-2004) The place to chat about any 2.0L Split Port Injection engine performance, tuning and exhaust related upgrades.

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Old 11-12-2012, 01:01 PM   #1
PuntaGorda
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Dropped Valve Seat Rebuilds

I'm rebuilding a SOHC 2.0 SPI and have less than complete faith in the specifications provided by our trusty friends at Fel-Pro. Could I get a few second opinions on the torque specifications and end sequence for the Head Bolts? I currently have them all at 44 ft/lbs and will hold sequence until a consensus of the SPI gods has been made. Thank you.


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Old 02-24-2013, 10:00 AM   #2
dromeda
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Here's what my haynes manual says (I would also be interested in what the FSM says too if anyone has it...):

1) Tighten to 37 ft-lbs in special sequence pattern starting from the center going to the outside
2) Loosen half a turn in reverse pattern
3) Tighten to 37 ft-lbs in forward pattern
4) Tighten 1/4 turn in forward pattern
5) Tighten 1/4 turn in forward pattern

Doesn't really give a final torque but 44 seems ball parkish.

[edit - changed word "star", not really a star pattern, but starting from the center and moving out pattern]

Last edited by dromeda; 02-24-2013 at 06:09 PM.
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Old 02-24-2013, 11:49 AM   #3
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Quote:
Originally Posted by dromeda View Post
Here's what my haynes manual says (I would also be interested in what the FSM says too if anyone has it...):

1) Tighten to 37 ft-lbs in star pattern starting from the center
2) Loosen half a turn in reverse star pattern
3) Tighten to 37 ft-lbs in star pattern
4) Tighten 1/4 turn in star pattern
5) Tighten 1/4 turn in star pattern

Doesn't really give a final torque but 44 seems ball parkish.
Dont do the star pattern, do what the manual says as far as the head bolt numbers go, this is very important!
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Old 02-24-2013, 06:11 PM   #4
dromeda
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Yeah, it's not a true star pattern. The haynes manual does have the certain sequence. I was using "star" as a generic term. I edited my reply so as not to confuse anyone else that comes along and reads it.
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Old 02-25-2013, 12:30 AM   #5
murrayjay57
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I am also replacing my spi head. This helped alot. :-D

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