ta ace

iTrader: (22)

OK New Build on a diff car ..

car runs good no miss just SMOKES BAD
car smokes like a train.... pull spark plugs can see liquid on top of pistons...

did a compression test all cyl... 150

thinking the NEW COMETIC head gasket had a flaw we tear the head off... nothing visually wrong

so we noticed when we pulled the turbo off that 2 exhaust ports on the head were coated in fluid (coolant) as well as the turbo and the exhaust is spitting it out when running..

no visual issue w/ HG so we put a new HG on and now we still have the same issue...

could the head be cracked? is there something stupid?

intercooler piping is dry
intake is a little nasty but not horrible

how do we determine where the leak is?

thanks in advance

ak47po

iTrader: (3)

Head gasket.Use stock gasket.

b16a95eg

iTrader: (12)

You can do a leakdown test and see if something is leaking, if that doesnt show where its leaking from there could be a crack in the head.

My guess would be the head gasket just isnt sealing off the coolant jackets good enough though

JohnBradley

iTrader: (30)

Head ported? If it is and it was ported heavy, check the exhaust ports on 1 and 4.

ta ace

iTrader: (22)

stock head stock cams ... only the 2 cyl next to the cam gears (1&2?) had coolant in the exhaust ports..

and we thought HG too so se put a all new Cometic HG on and torqued down to 100 ft lbs

wouldnt think the head would need torqed down any more?

i dont see how the head could magically crack just sitting on the bench for a week?

its gotta be something stupid

b16a95eg

iTrader: (12)

The Cometic head gasket could be a problem, I used a couple in my Honda's a few years back and they would leak. Thats why most people just stick to stock

CO_VR4

iTrader: (83)

I'd bet the Cometic gasket based on what you've said so far.

dsmfan95

iTrader: (27)

http://jdm-insider.com/Blogs/Eric/wp...10/gaskets.jpg

There's a picture comparing Cometic vs OEM vs Cosworth.

Murf

iTrader: (2)

Do a coolant system pressure test. When you get the system up to operating pressure leaks will show up the pressure will drop slowly..depending on size of leak.

surferjeff

iTrader: (6)

Deck the block

ta ace

iTrader: (22)

car never overheated.... going to try to get a oem HG here tomorrow to try that... any other ideas

binky

iTrader: (11)

FWIW, I have a Cometic HG in my car, no problems. It was recommended by English Racing during my engine build.

-Bink

Acree

iTrader: (8)

If the headgasket has absolutely zero issues, the only possibility is a crack in the head, or your head or block is not flat. Have the shop check for flatness within factory specs.

-Acree

ta ace

iTrader: (22)

going to pull turbo kit tonight and do a coolant pressure test and see if we can see anything coming out of those 2 head ports that were drenched...

Arctic02z

iTrader: (5)

block deck was checked when motor was rebuilt... check to be ok

but with stock pistons and rods and a cometic hg ran fine and no smoke 30 miles later spun main bearing.

got a new crank and bc 156mm i beam rods, manley 2.0lr pistons and new cometic hg.. now it runs fine and smokes....