my intake gasket adventures

brim · 04-15-2007, 03:57 PM

Well here's some pics, didn't find what I was looking for when I did this job, motor ran insanely smooth after we fired it up after changing the oil and antifreeze but it only lasted that night.

The next morning I was back with a continous misfire on cylinder one. Oh, and my petrooster was busted =p fantastic

brim · 04-15-2007, 04:00 PM

and a few more

hooray milk, not sure if it's a head gasket in the end, i kept pulling the plug on one, it wasn't firing right and I was burning some antifreeze along with mixing it in the oil, i figure it might be a head gasket issue that is making the cylinder misfire as well. The plug stunk of gas and I've already tried replacing the coil, wires, and plug to solve the misfire, no go.

brim · 04-15-2007, 04:11 PM

petchicken lol

SweetNLow · 04-15-2007, 04:20 PM

i had the same issue with a 96 blazer with a 4.3 in it......... in the end i think it was the headgasket as well but i got rid of the truck befor i was able to figure it out.

alerored04 · 04-15-2007, 04:26 PM

damn, thats nasty stuff. if the limg swap didnt fix it i would say headgasket is the next logical step. That sucks dude.

rustyballs_69 · 04-15-2007, 06:11 PM

Just pull the spark plug out of the #1 cylinder and look at the top of your piston with a flashlight. If it looks like rust on it then its your headgasket. That was my problem and it was saying misfire on the #1 clyinder also.

brim · 04-15-2007, 08:12 PM

yeah I'm all out of ideas right now, don't want to pay a shop to tell me it's my headgasket. I had the head gaskets and the exhaust manifold gaskets on hand but I didn't have the time to pull the heads and have them resurfaced.

I'll compression test the cylinders again. I can't figure out any other reason why cylinder one is getting fuel and spark but not firing properly other than a leak at the heads at this time.

I was working by penlight the first day in a garage, that was wednesday, I had the lower intake off friday morning (losing stuff in the dark = no fun, lost an injector to rail clip but found it later), cleaned it all up and had it back together in just about 3 hours or so saturday morning, ran fine aside from the nut at the FPR being loose, spit out a bit of fuel, tightened it up but I had knocked off one main connector at the control module. Picked that one up quick though.

rustyballs_69 · 04-15-2007, 08:58 PM

Its more than likely your head gasket. You should have gone one step further when you had your intake off and changed the head gasket. I didn't have to get my heads resurfaced. The gasket was just bad. There was a whole piece gone between the water jacket and the cylinder.

brim · 04-16-2007, 06:09 PM

yeah i had about one day left, and if i did get at the heads and found a problem i was a state away from where i live and had to work the next day

I do regret not just tearing into it, gonna have to soon it would seem, I'm gonna do a bit more work and try and figure it out

rustyballs_69 · 04-16-2007, 10:34 PM

Quote:

Originally Posted by brim

yeah i had about one day left, and if i did get at the heads and found a problem i was a state away from where i live and had to work the next day

I do regret not just tearing into it, gonna have to soon it would seem, I'm gonna do a bit more work and try and figure it out

Yeah I wouldn't want to work on my shit away from home. Everything is pretty simple though. I had a little trouble with the rear exhaust manifold studs. They have nut that go on the stud but when I was taking them out the whole stud came out. Front is easy as hell though.

daiglepatrick · 04-16-2007, 08:57 PM

don't know if this will help....I had a Cylinder misfire a while back...it was a pinched wire leading to the injectors...the wire was somewhere behind/underneath the power steering pump.

good luck....

I just changed my LIMG a month ago...I feel you pain.

rustyballs_69 · 04-16-2007, 10:39 PM

Hopefully your main bearings aren't effed up because of this. When I did my head gaskets the underside of my LIM didn't look anywhere near as shitty as yours. Just something to thing about if you can't fix it right away.

sound_xtreme · 04-17-2007, 12:11 AM

looks tasty!

brim · 04-17-2007, 01:14 AM

Quote:

Originally Posted by sound_xtreme

looks tasty!

vanilla puddin'

yeah as far as main bearings, i've continously changed the oil since i saw it starting to mix, i've only driven the car within a 2 mile range outside of the trip to MA, i changed the oil twice in one week before heading up, and once when i was done with the job up there, still intend on one or 2 more over the next week to try and clean out any extra gunk that may still be left in the crankcase.

oh and also

THE PORT that matched to the one that is caked up on the head was insanely pitted and oxidized, on the manifold side of the port i cleaned it with a toothpick and punched a hole right though it just scraping it, uh yeah.... ended up JB welding and rounding it back into what it should have looked like.

rustyballs_69 · 04-17-2007, 11:05 PM

Quote:

Originally Posted by brim

vanilla puddin'

THE PORT that matched to the one that is caked up on the head was insanely pitted and oxidized, on the manifold side of the port i cleaned it with a toothpick and punched a hole right though it just scraping it, uh yeah.... ended up JB welding and rounding it back into what it should have looked like.

Wow that sucks! Imagine what the rest of it is like .