So I replaced the HG> no problem. But while bolting up the IM, A small chunk by the #4 runner always breaks off, its right next to the coolant passage. If I did get a new manifold, Im worried that Id break it in the same place! There is that gay black thing that goes down behind the IM, Im thinking that has something to do with it... BTW this is on a 93 Civic, stock D15B7. Any help would be great.

Blaze

 

Wow 20 views and no one has an idea why this keeps happening?

Blaze

 

that gay black thing is your PCV cannister. you overtorqued or somehow unknowningly bashed the IM on something hard as to weaken it. go buy a new one

 

Theres a special way to tighten it down...I believe it starting from the outside then going in grdaually tightening it...Check out a Helms or any manual...It should tell you the proper pattern of tightening the IM and EM....

 

(black thing) Its not the charcoal canister. Its a supposrt brace that goes all the way down to the exh pipe. It bolts into the bottom of the IM....

Blaze

 

Bump, cause I need help!

Blaze

 

the torque specs are like 17 ft/lbs... which is close to nothing... so you're probobly just over torquing the bolts...

What order are you tightening things down...

I'd get the brace on but not tight and slowly tighten the IM bolts from the middle out like on a head or header... then I'd tighten down the brace..

Again these are VERY low torque numbers... it's only enough to crush the gasket and keep it on there.

 

Thats the thing, I go from the middle out.... the middle ones are snug... Then I go to tighten up the end one and SNAP. Im hardly putting any pressure on it, definetly under 17lbs, thats for sure.

Blaze

 

go from the outside in, in 3 diff incriments. try takeing off the black bracket to . you need it just leave it loose

 

Make sure the mating surface is clean and free of any debris. Also make sure the gasket is in good condition.

If there is anything between the head and IM around the #4 runner when you tighten the last bolt it will cause it to crack.

I have seen this happen before.

Try checking this and see what you find.

-kenji

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blaze45 &raquo;</TD></TR><TR><TD CLASS="quote">Thats the thing, I go from the middle out.... the middle ones are snug... Then I go to tighten up the end one and SNAP. Im hardly putting any pressure on it, definetly under 17lbs, thats for sure.

Blaze</TD></TR></TABLE>

Like stated above... DO NOT fully torque down any of the bolts while others are loose... (except the mounting brackey/brace) that you should tighten last... try from the outside in.. and you may want to check the head's mating surface and the intake's mating surface with a straight edge just to be sure nothing is warped...

then again like stated be sure nothing is obstructing the im from seating properly... be it on the mating surface or elsewhere... make sure you can hold it on FLUSH without anything getting in the way.

good luck.