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| Northstar rebuild: Will style (Page 15/119) |
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Kohburn
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SEP 09, 02:04 PM
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sounds like a lot higher volume of oil than valve stem seals can leak
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Will
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SEP 09, 02:13 PM
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Doesn't it, though? ------------------
Punch the gas and feel the back step sideways; rip off a powershift and hear the tires punished by torque; downshift, lift off and feel the engine braking that comes only from big cubes, listen to the pop and gurgle. Know that you are driving an American V8. There are finer engines made, but none that are this cool.Luck, Fate and Destiny are words used by those who lack the courage to define their own future
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Kohburn
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SEP 09, 02:44 PM
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which reminds me.. feel like splicing a N* wireing harness for me? 
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Will
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SEP 09, 03:18 PM
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Kohburn
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SEP 09, 03:35 PM
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ouch - ;P which you you recommend?
using the OBD1 ecm or the holley950? weighing cost to difficulty.. I'm trying to work out my plans before the spring
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Will
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SEP 09, 04:10 PM
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$600 was an off the cuff guess. My harness took about 40 hours, but now that I know what to do and have a well sorted harness to reference, I'm sure I could do it in significantly less time. If you're serious about it, I'd be happy to do it for you. The question of Caddy PCM vs. Holley Commander basically comes down to the question of stock vs. modified. If you're going to leave your engine stock, the Holley Commander is total and complete overkill, and possibly dangerous to your engine (DO NOT raise the rev limiter on a stock Northstar). If you're going to modify your engine, particularly with ported heads or reground cams, then you'll need the tunability of the Holley, because the Caddy computer, at this time, can not be tuned well.
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Punch the gas and feel the back step sideways; rip off a powershift and hear the tires punished by torque; downshift, lift off and feel the engine braking that comes only from big cubes, listen to the pop and gurgle. Know that you are driving an American V8. There are finer engines made, but none that are this cool.Luck, Fate and Destiny are words used by those who lack the courage to define their own future
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Nashco
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SEP 09, 08:52 PM
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| quote | | Originally posted by Will:
I reinstalled it as it was... what fiddling were you thinking of?
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Just any fiddling...I know you've been unhappy with Centerforce in the past, and I thought you were still using the replacement clutch they made for you with the extra straps. I know you've mentioned the hydraulic throwout bearing in the past as well, wasn't sure if you wanted to implement that into your car ever. You've also been active in the aluminum flywheel thread...all this adds up to make me curious if you've changed anything. Bryce
88 GT
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Will
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SEP 09, 09:41 PM
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Not yet. I will go to the hydraulic throw out bearing when I assemble my 1.02/3.94 gearbox. The remaining obstacle for that is getting the gears and case an ultrasonic treatment (actually, finding money for it, not the treatment itself). As far as the clutch goes, I found I had a slight leak around one of my flywheel bolts. I sealed the bolts better this time. We'll see how much better the clutch acts under pressure this time around. As far as what I'm eventually going to do for a clutch setup... I'll just say that I'm cooking up something very interesting... ------------------
Punch the gas and feel the back step sideways; rip off a powershift and hear the tires punished by torque; downshift, lift off and feel the engine braking that comes only from big cubes, listen to the pop and gurgle. Know that you are driving an American V8. There are finer engines made, but none that are this cool.Luck, Fate and Destiny are words used by those who lack the courage to define their own future
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wetpoop
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SEP 09, 11:19 PM
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I probably shouldn't even post this, I only read that last page of this post an not sure what year engine you are using, or if you did your compression check yet. Anyway, I know that later north star engines have been know to consume oil and the fix has been to clean the piston rings. this is done by pulling the plugs and filling the cylinders with de-carb and letting it sit over-night. I think your problem may require something more than de-carbing the rings though. It seems you have a signifigant oil burning issue. Anyway I am just trying to help. If you do decide to try this de-carb, make sure you get all the de-carb fluid out of the cylinder before starting the motor. It is also very important to change the oil prior to starting the engine. And of course after doing this procedure there will be some visible smoke until all the carbon has burned off. Anyway I wish you the best.
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ryan.hess
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SEP 09, 11:26 PM
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f*** the compression test... you need to do a leakdown test. I'm strongly leaning towards bad ring sealing... Don't even need any fancy equipment... just your compressor and a cylinder air tool (didn't you already have one for changing to springs w/o removing the head?) Anywho, I bet you'll hear lots of hissing out the pcv grommet (since the oil fill's on the wrong side  ) And there's no chance at all you got the wrong valve seals?Also, FWIW - You could have a leaking fuel pressure regulator diaphragm (one of the achilles heels of the N*)... These typically show up as white or black smoke out the exhaust (depending on how bad). Easiest way to check is to pull the vacuum line off it, and see if fuel is in the line. That's all I got for now...
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