Warped head?

[caz]

Alright... about a month ago I overheated the car and it acted like I blew the head gasket. The coolant was really nasty... and my oil looked like chocolate syrup... We pulled the hg and it looked fine, but replaced it... did all the belts, and a list of other small crap. We ended up reassembling the engine after lots of little replacements here and there. After we got it all back together... we started it up, and was running somewhat rough, and was putting out some white smoke. (I'm summarizing this whole scenario) Anyways, we believe that the head probably warped when this originally happened. I picked up a newly rebuilt head finally (tonight) and should put it on within the next week... I'm not trying to sound like an idiot saying all of this... But my real question is... Is there anything else that I could be overlooking that could be the root of my problems? Any input is appreciated...

Thanks
caz

 

[XtremeGST]

definatly could be other problems. it might be your heads but it could be your engine internals and your valve. when my car oberheader a main bearing spun on the crankshaft.

 

[caz]

what kind of likelyhood is that to happen in my situation?

 

[1320Motorsports]

What type of headgasket did you put on? Metal, factory, aftermarket factory replacement? Did you install ARP head studs, what did you torque the head to? Did you have the head resurfaced before you put it back on?

I never put a head back on a car without resurfacing it, its $40 in machine work to not have to worry about that being a problem when its back together. If you put a metal headgasket on and didnt resurface the head, chances are its not sealed. Also the factory head bolts stretch and are supposed to be replaced whenever you pull the head off, so I always put in ARP studs.

Theres so many possible things it could be, so your description is a little vague. Also keep in mind when you pull the head it is normal sometimes for a little strange smoke for the first few (sometimes many) minutes the motor is running

Matt

 

[Littlebeeper]

just curious, but i thought the 2G headbolts stretched but the 1G headbolts didn't? I'm doing a head right now on a 1g. if this is the case then he would be ok as he shows a 1g GSX

 

[gsxboostin]

yes, I have the same curiosity as Littlebeeper, I am wondering if my headstuds for my 1g awd are ok to use again?

 

[marcmsj]

yes, I have the same curiosity as Littlebeeper, I am wondering if my headstuds for my 1g awd are ok to use again?

i wouldn't.

 

[Ntrain2k]

Just a small suggestion.

On every engine I build, I run it through a couple of heat cycles, then pull the valve cover(s) and retourque the head studs/bolts while the engine is still warm. A friend had a supercharged 3.0 liter that was losing water after he rebuilt it, and he asked me for a suggestion. I recommended this, and once he did it, all was good in the world again.

Good luck!

 

[rowlex]

Just a small suggestion.

On every engine I build, I run it through a couple of heat cycles, then pull the valve cover(s) and retourque the head studs/bolts while the engine is still warm. A friend had a supercharged 3.0 liter that was losing water after he rebuilt it, and he asked me for a suggestion. I recommended this, and once he did it, all was good in the world again.

Good luck!

By retorquing do you mean, loosening the bolts a bit then re-tighten? Or just setting the torque wrench and making sure their still at spec?

 

[Ntrain2k]

By retorquing do you mean, loosening the bolts a bit then re-tighten? Or just setting the torque wrench and making sure their still at spec?

Just set the torque wrench and make sure they are still at spec. I have found that after a couple of warm up cycles that they tend to loosen a bit.

Also make sure you do it while the engine is still warm. Beleive it or not, it makes a difference.

 

[rowlex]

Cool will do, thanks!

 

[4GSixty3]

I reuse my bolts everytime and I have no problems. There is actually a study that another website did ( www.teamnabr.com) did and found that 1g headbolts are better than arp so....

 

[arson]

1g headbolts are better than arp so....

even after the head has been warped? (i'm in the same boat as caz)

 

[Littlebeeper]

i've reused my headbolt on my Toyota Pickup 4 different times!! they did feel pretty bad on the 4th time on but i think it was more the head/engine than the headbolts. The engine did have over 220,000 miles, and they were not all easy!!! i wouldn't reuse the 2G headbolts though, as they are stretchable.

 

[4GSixty3]

even after the head has been warped? (i'm in the same boat as caz)

Can't tell ya right now but I can 2morrow night seeing as I'm in that SAME BOAT! Ima reuse mine so I'll let ya know how it goes .

 

[caz]

well.... since I last posted, I've picked up a new head from a guy locally. Got it for a good deal, everything was resurfaced, cleaned, aligned, etc. I'm going to put it on probably mon/tues of next week. I'll keep you guys updated. BTW, I have ARP's and used a pos Felpro (sp?) gasket. That gasket is crap... I'm replacing it with a cometic. You wouldn't believe the difference they are side-by-side if you haven't ever seen them. the $90 or whatever you spend on that cometic is definitely worth it. Wish me luck... I hope this new head will be problem free

 

[imptuner]

do you have a cat? because if you do it takes a while for the coolant to burn out of them once its in there and that gives you white smoke