hmmm residue in my exhaust chamber- let what could it be!

[dan-j]

started to crack on with the nova today after pv, was getting bored and ive got this tiny light which goes any where, shined it in all of my exhaust side chambers as my car is minus its exhaust manifold!. all were dry apart from no3 which seemed to have damp oily coke residue at the front of the valves and around the hole chamber does this sound like a dodgy valve stem oil seal? took out the spark plugs and i dont think its a ring letting by as all plugs were the same as were the piston tops, worried now ill have to rip the engine apart, should i just run it and see? the engine has done 0 miles and has only ticked over for a total of 15mins only other thing i thought it may be was condensation but then all bores would have it, and the evenings have been warm lately
thanks for any help

[Gary]

does sound like a leaky stem seal tbh, if you're confident the plugs are saying everythings burning ok.

[dan-j]

could never say m8 all plugs appear to be buning the same!, the car was prolly running lean tho as it hasnt been set up or any thing yet!

[dan-j]

any more advice? my dad said to let it run a few mile before i take the haed off? do i realy want oily smoke going thro my reconned t3?

[dan-j]

another thought when i put all the stam seals i i made sure they were a good tight fit on the valves! also would i make any difference that im using mineral oil at the moment?

[dan-j]

new thing! could it be worn valve guides?! im gunna scrap it soon