time for a new motor?

**01ssSLP** · 10-24-2008, 09:05 AM

So i have a 2001 SS M6 and the #5 cyclinder spark plug keeps getting oil on it which mean its misfires. I have no idea what to about it other then put a new motor in but i dont have the money to do that right now. I know the
LS1's get piston slap ,which i have but not bad, so im guessing it got worse seeing as oil is getting on the spark plug. So my question is what should i do to fix other then a new motor.

**Phantom2kz** · 10-24-2008, 09:29 AM

valve stem seals
oil is leaking past seals and onto spark plug.
used to be more common, i would replace a couple of valve stem seals before i would go motor.
also a good excuse to do some head work

**shady milkman** · 10-24-2008, 09:35 AM

Originally Posted by Phantom2kz

valve stem seals
oil is leaking past seals and onto spark plug.
used to be more common, i would replace a couple of valve stem seals before i would go motor.
also a good excuse to do some head work

yessir..no need for a new engine..its worth noting that piston slap has nothing to do with your issue. P/s is all about expansion to eliminate the play that the ls1 pistons get until they warm up..i cant remember what needs to expand but the later pistons solved this with the change to floating pin designs

**01ssSLP** · 10-24-2008, 01:17 PM

So getting new heads would solve this problem?

**shady milkman** · 10-24-2008, 01:47 PM

Originally Posted by 01ssSLP

So getting new heads would solve this problem?

no you can change valve stem seals without replacing your heads

**01ssSLP** · 10-24-2008, 01:53 PM

how much of a pain is that job to do or should i just let someone work on it

**67CamaroRSSS** · 10-24-2008, 03:57 PM

Valve stem seals can be replaced without removing the head if you have the proper tools. The ones towards the back are a PITA though.

From my point of view (old, fat, lazy and with enough spare change to be able to afford to pay someone else to do it) I'd have a pro do the work.

**shady milkman** · 10-25-2008, 12:09 PM

yea it involves rocker arm removal etc..so you need to prevent valves from dropping etc ..just go get it taken care of by a pro

**01ssSLP** · 10-26-2008, 03:06 PM

well then i guess monday i will being calling the shop to do some work. Hopeing it wont be to much. Thanks for the help guys

**01ssSLP** · 10-26-2008, 03:40 PM

Is there anything else i should get replaced while i have them do that or upgrade anything. i was looking at putting a trex cam in over the winter and in the kit it has the seals. would that work?

**chevyss1234** · 10-27-2008, 10:57 AM

Yeah man if you're doing a cam this winter you definitly want to put the new springs in when you replace the seals, so yeah put the seals and new springs for the cam in while you have it apart off...that'll be so cool to basically just throw the cam in.

**bigrondownhiller** · 10-27-2008, 12:05 PM

If you could do it I would do it all at once, no need to take things apart a second time. If they change the springs might as well do all the seals. I would have a leakdown test done to #5 just to be sure. Most likely just the valve seals though.

**01ssSLP** · 11-01-2008, 08:15 AM

I call the shop and they said they'll run a test and also said it might be a bad piston and not the seals. They gave me a price for at 500 so i hope no one out there has a problem like that.