tweeder

iTrader: (3)

Well I thought I had a leak from my intercooler or piping, so I decided to plug either end and see. (Right from the beginning i've never been able to run the 10 psi i'm set for I might see 5 in the beginning nut that bleeds off pretty quick down to nothing.) After about i min with 15 psi, no leaking. So I uncapped the end with the guage and hooked it back into my intake to see if i was leaking there. I'm not sure how much air is going in but it was coming out pretty fast. I could hear it so I sprayed soapy water to the throttle body and front of the intake, right away i got bubbles from the front passenger side of the intake where it meets the head. I thought I had it torqued down when I re installed it last year but mabey not. I looked and it says 44lbs first pass and finish with 89lbs. Well I went for 44 first and it kept on turning and turning then snap Then it all came back and i'll be damned if I haven't done this before. So no I can't remember on what I put em ay but it sure wasn't 44. So no what? I've gotta pull the intake to get the bolt out, but I think i'm gonna look for grade 8 bolts and replace and torque them down that way.

1Bear

iTrader: (1)

You just wrote 44lbs and 89lbs, so we have no idea what you were really trying to torque them to, but hopefully you were attempting to torque them to inch-pounds and not foot-pounds.

a. Tighten the intake manifold bolts a first pass in sequence to 44 lb in.
b. Tighten the intake manifold bolts a final pass in sequence to 89 lb in.

tweeder

iTrader: (3)

I was going by the guide on ls1howto.com. And now that i re-look it is inch not foot, that'll do er. I was looking at the one underneith and its in foot so thats where the confusion was.

tweeder

iTrader: (3)

K, I just went out and checked with my 1/4 drive torque which is in inch and the others are at the 89lbs/in. So I take it the front one was also and if thats the case, the boost was pushing through that.

acethedragon

iTrader: (2)

sounds like you need new gaskets when you go in to get that bolt out.

chvy=power

iTrader: (11)

mine did the same thing to me...changed to arp intake bolts and ain't had a problem since

tweeder

iTrader: (3)

I hope it's not the gaskets as they are fairly new with the engine build, maybe about 10000 kms in the past few years as i only drive it from oct to march.

tweeder

iTrader: (3)

Whatdid you torque them too? 89 or a little more. I've heard that over tightening them can cause leaking also.

tweeder

iTrader: (3)

Well I got the intake off now and the gaskets don't look like there's a peticular spot thats leaking. Then I remembered I had a spare complete gasket set in my shop, looking at the new and the old; the side of the gasket thats on the head is squished flat. I'm gonna put the new one in and see.

tweeder

iTrader: (3)

Got the intake on last week and presureized the system an it held at about 10-15. So I got the supercharger back on, and went for a drive. I was seeing no boost, now what? Checked under the hood and I for got the belt! That'll teach me for being overzelous. Put the belt on and went out but didn't get a chance to redline it all i seen was 1-2 psi. So i took it out today on the stretch to work and went from stopped to redline and the best I saw was 4 psi. Could it be losing boost right out of the supercharger? When I get some time in the next couple days i'm gonna disconnect it from the intercooler and hook it up direct.