S2000 Under The Hood S2000 Technical and Mechanical discussions.

Cooling system issue

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Old 08-08-2005, 07:48 AM
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Originally Posted by Slows2k,Aug 8 2005, 12:02 AM
Did you follow AEBS instructions of torquing the studs in the block 1st to 10ft/lbs?

You will have to remove the Cams and rocker shafts/stands to retorque the nuts.
Yes, most defenitely, I torqued the studs to 10ft /lbs...
Old 08-08-2005, 07:53 AM
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Originally Posted by xviper,Aug 8 2005, 09:05 AM
This may be very incidental compared to the suggestions already posted. How tight is the hose connection between the rad filler neck and the reservoir. If it's loose, it will convey fluid to the reservoir as the coolant expands but will not pull back in when the engine cools down. I've gotten into a habit of putting small hose clamps at the rad cap end and at least checking the end where it connects to the overflow tank.
good point. The end that connects to the rad neck is not that tight but not that loose as opposed to the reservoir end where its very tight, cant barely slide it off.
I will put a clamp.
Old 08-08-2005, 09:59 AM
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I would be willing to bet the headgasket is blown. Retightening after it is blown will not accomplish anything. 12 lbs is a very high boost and 3-1/2 inch pulley is very small to the point of exceeding max impeller speed.
Old 08-08-2005, 10:12 AM
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Originally Posted by Sideways,Aug 8 2005, 12:59 PM
I would be willing to bet the headgasket is blown. Retightening after it is blown will not accomplish anything. 12 lbs is a very high boost and 3-1/2 inch pulley is very small to the point of exceeding max impeller speed.
Well, yes 3.5 exceeds impeller speed but I'm cutting out at 8500
Old 08-08-2005, 02:59 PM
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I wouldn't try retorquing the bolts after the gasket is blown. I know ARP often reccomends retorquing after 1 heat cycle, but AEBS doesn't.

Exceding max impeller speed? Have you looked into a T-trim?
Old 08-08-2005, 07:33 PM
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Originally Posted by Slows2k,Aug 8 2005, 05:59 PM
I wouldn't try retorquing the bolts after the gasket is blown. I know ARP often reccomends retorquing after 1 heat cycle, but AEBS doesn't.

Exceding max impeller speed? Have you looked into a T-trim?
So whoever has gone w/ studs they've done whatever each of these companies have recommended? Whats the general consensus here?

Na, won't bother w/ sc's after this one, i've looked into the ball bearing trims instead

There is still the lack of torque even at 11-12psi.

Then again, why didnt i buy a v8?
Old 08-08-2005, 08:09 PM
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Old 08-08-2005, 09:03 PM
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This is my version, obviously a lot different than yours. Forget what I said to you before. What happened was I called them up to ask them about these instructions and they said to follow up to the stud preload to 10ft/lbs and then the rest to follow Honda's torque instructions, so obviously the "loosen and retighten to 22ft/lbs" step was missed
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