heres the situation. i have a fully built 2.4l engine with a MIVEC head. it is the 4G64 block and 4G63 head. im running wiesco pistons, eagle rods, GSC 272 cams (both), supertech valves 1mm oversized on both sides and an unorthodox underdrive pully set. in conjuction with all that i have all the supporting bolt ons and a GT35r ball bearing turbo. the problem arrises when i turn the car on. once you rev the engine and let off it spits grey smoke. ive look for everything and the oil pressure is good. could it be that the car just needs to be tuned? please help me out!!

 

is it bluish grey smoke?

 

yea. more grey then blue though

 

you are burning oil somehow...

 

 

ive looked for all major oil leaks. changed gaskets and seals. the only thing i havent done is replace all of my vacum lines. im thinking i might be getting blow by the pistons. maybe?!!

 

check to c if ur getting oil from the line coming off ur head going into ur intake pipe.

 

Did your Supertech Valvesprings come with the Viton seals or do they just install stock seals? There was a problem with the Dual Springs from Supertech hitting the stock valve seals and of course causing leaks thats why all of Supertech kits come with Viton seals now.

Chris

 

06ravenmr: there is a little oil in that tube, but nothing unusual that i havent seen before.

2k4EvoVIII: all the seals were replace during the head work. but yes they are stock seals. but i have single springs not dual though.

 

how many miles are on the rebuilt motor?? was it always doing this from day one?? if it only smokes when u let off the gas then its ur valve seals... that is y im asking...

 

yes its been doing it rom day one. thanks for the help. ill try and install a set of the supertech seals and get back to you. thatnks again.

 

have it checked out tho. dont just waste time and money on seals. it could of been machined wrong. who knows it could be a number of things. if the motor rebuild is fairly new it just might need time for everything to seat wright.

 

is the turbo brand new or used? could be the seal on the turbo...but yea talk to whoever built your motor