Fireball

iTrader: (21)

My dumbass forgot to put sealant on the rocker threads on my S2 heads <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" />

how much oil can seep by the threads? Getting a slight smoke haze at idle and this might be part of the problem (that and toasted O2 sensors <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" /> )

Gotta project for tomorrow now <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" />

Fireball

iTrader: (21)

<img border="0" alt="[boring]" title="" src="graemlins/gr_zzz.gif" />

I'm not thinking it due to rings as I am not getting any crankcase smoke when the oil cap is off...that and the oil looked really good when I changed it

W8N2SQZ

iTrader: (6)

My new motor was doing the same thing(smoking a little at idle). I don't know how much can leak by, but it can happin if you don't seal up the rocker holes. I forgot to do it on mine so I pulled my intake off and you could see a small trail of oil from the bolt hole down the back of the bowl and into the chambers on some of the intake runners. I used some loctite white teflon silicon sealant and that stoped it. How ever I have 4 cylinders that continue to burn oil(all the plugs are black and oily down inside at the bottom of the porcelin). The plugs last for a while and then foul. I have moved injectors(flowed and leak tested them) around and moved coils around and the same holes have problems. The bottom end has been gone through and has JE pistons and rings. I talked to JE and they said they've had other people with the same problem and to try different rings. I wish I would have gone with Total Seal rings, I think they are better. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> Let me know how your situation goes.

Glenn

heavyhttr

None. I didnt use any one my last motor and it was fine it did smoke a little at first but went away and a new motor smokes for a while.

Fireball

iTrader: (21)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by W8N2SQZ:
<strong>I forgot to do it on mine so I pulled my intake off and you could see a small trail of oil from the bolt hole down the back of the bowl and into the chambers on some of the intake runners. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">thats alot of oil then if you can physically see a trail...damn! I'll pull the intake first just to see <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Jim98TA

I would guess you would get some by, but not as bad as if you had a bad valve seal or something. Most likely a slight PITA job, but taking the studs out and putting sealant on them would probably be a good idea. Good luck with em...

Jim

Fireball

iTrader: (21)

Observations:

the threads were very very oily...I cleaned them up...ran a q-tip thru the bolt holes and teflon pasted all the threads and reinstalled...

Fired up ran a while but it still smoked but it appeared to improve.

Pulled an o2 sensor...VERY black...I think I have fouled out o2s making it run Very rich...probably will replace them

pulled the throttle body...intake is still pretty oily inside but I think this is residual from the old PCV setup...the new PCV is very dry (oil free) so I think its slowly cleaning out.

pulled the PCV and oil fill cap while engine was running..no oil vapor/smoke coming out of the oil cap so it appears the rings are actually sealing...imagine that <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

My thoughts...oil from the intake is still working out and slowly burning...may pull the intake and clean out to see if this clears it up...

any other thoughts <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

W8N2SQZ

iTrader: (6)

Yeah I couldn't believe it either, until I pulled the rocker bolt out and the shank and threads were coated in oil. Now when I pull the out the sealant area is dry <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> I talked to one guy that just used red loctite and he was good, but stuff never goes that easy for me <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />

Glenn

Jim98TA

How long did you leave it running? Did you take it out on the road at night and watch in the headlights of the car behind you? You could also have a bit of oil residue in your exhaust that needs to burn off. Change your O2's to make sure your fuel mixture is OK, and drive it for a bit to see what happens. Sounds like you do have quite a bit of residue to get cleaned out of the system. Does the smoking get worse under hard acceleration?

Pro Stock John

iTrader: (34)

Seals and guides are good?

I'd try using a torch on the 02's and burn that stuff off supposedly they might work again.

Fireball

iTrader: (21)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Pro Stock John:
<strong>Seals and guides are good?

I'd try using a torch on the 02's and burn that stuff off supposedly they might work again.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">seals/guides should be good...heads were just done by GTP and only have 150 miles on them <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Fireball

iTrader: (21)

OK checked with Craig...all guides are checked and replaced as needed...doubt thats it <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

but there was oil on the intake valve...looks like it came from the intake (residual) as it was pretty dirty oil not consistant with the fresh oil in the car <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />

did snap a pic:

<img src="http://www.wam.umd.edu/~krzew/intake.JPG" alt=" - " /> you can see the oil sitting on the face of the head that the intake bolts too <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" /> <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />

so I cleaned the intake out with simple green and reinstalled. Now its not smoking as much and its smelling VERY rich haha...so I hooke dup atap. Ltrims were 25% and the o2s weren't going over .5 volts <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> I think they are cooked and the engine is dumping excessive amounts of fuel in there haha.... I think I'm gonna force the PCM into open loop at idle (0-1200 rpm) with LS1 edit and manually tune the idle. Probably the lack of vacuum isn't helping either...only getting 13.9 to 14.7 in Hg (via ATAP) at 1100 rpm idle <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" />

Jim98TA

Well, it does look like the oil was coming from the intake. Hopefully cleaning it out will get rid of that. Just out of curiosity, what kind of valve seals did they put on there?

Jim

Fireball

iTrader: (21)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Jim98TA:
<strong>Well, it does look like the oil was coming from the intake. Hopefully cleaning it out will get rid of that. Just out of curiosity, what kind of valve seals did they put on there?

Jim</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">not really sure.

W8N2SQZ

iTrader: (6)

Fireball,
Mine was the same way. You could see oil sitting on the valve <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> So I tried venting the PCV into the atmosphere and that dried the intake up, but still had oil sitting on the valves. the only thing I can think of is it's my rings. My heads got new bronze guides and seals. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> Have you checked your plugs?? How do they look?

Thanks
Glenn

Fireball

iTrader: (21)

if it were rings...how would they get on the valves <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

plugs are black from running too rich...I'm gonna work on the O2 sensors and tuning tonight and maybe do a plug change <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Jim98TA

I am not saying that the oil on the valve is from a valve seal, but just because they are new, don't rule them out. I recently re-did my heads and got the teflon seals put on them. I just got through ripping them off after ~500 miles and put on the same style seal, but made from rubber. Took care of my issue.

Once you get good plugs in there, that may help figure things out by showing slight traces of oil on the plug. But since you already have the intake off, you can clearly see that the intake valve has oil on it which probably came from the intake or running down the valve stem. Was there really that much oil in the intake to leave that much on the head, and cover the valve? Its not sucking oil past the intake seal is it(is this even possible on an LS1)?

Brian, what was your smoking like? Did it give a good puff when you started it, clear up, then a slight smoking as it idled? Or did it only smoke under hard acceleration, with nothing at idle?

I know when mine was smoking, I thought for sure I toasted some rings, or had serious problems, but turned out just to be the seals.

Glenn, do you know what kind of seals were installed on your heads?

Jim

Jim98TA

Glenn, not sure if you met John or me on the seals. I ended up going with a FelPro "Viton" seal. They clamp on the guide like a teflon seal, so you need to make sure you have the right diameter and all. May be easiest to talk with whoever did the original work and get the specs on what is there currently. Then see if you can find the seals made of different materials. I would imagine MTI, or ARE or other sponsors could help you out. From my experience, I would stay far away from Teflon seals.

Jim

Brian, I will be at Cecil Friday night, so maybe I can catch up with you then. Hopefully you won't be smoking anymore... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

W8N2SQZ

iTrader: (6)

(I'm not basing the richness of the plugs...I'm basing off the fact that my O2 sensors are switching a tad slow (based off my A/F gage) and that they are reading kinda low with really high Ltrims at idle. This in conjunction with carbon covered sensors indicate rich condition.)

Good point, my 02's were switching very slow also and I don't think it would hurt at all to get new ones. My buddy works for GM and I can get them for 60 bucks each. Let me know if you need any help getting some.

Thanks again for all the help guy's. I am really new to this board and it is already paying off <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Glenn

W8N2SQZ

iTrader: (6)

<img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> Thanks Jim, I will make sure I get the right ones. I will update you guy's as soon as I get some work done on it. I have a wedding I am in, so I might not get this done for a week or two.

Thanks again <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />

Glenn