2.3 Stroker pushing coolant.

[Deadspool]

Right, so. Head gasket is a negative. Inspected spark plugs, still tanned carbon.



Here is the history.

Bought the car, guy "did the head gasket" before selling it to me, drove fantastic for about 2 weeks, then started to push coolant. Assumed the head gasket was improperly done. Took another route, Installed a known working, and very strong complete 2.3 stroker.

Works great for a little over a week, now is pushing coolant EXACTLY like the last engine did. Tried a 16g, and two 14b center sections.

That make two engines and three turbo's. The same problem with burning coolant and boiling over.

The warmer it gets, the more smoke comes from the tail pipe.

Idea's / suggestions?

 

[BogusSVO]

What HG is being used?

How was both the block and head surfaced?

Only way I am aware to push coolant is to get compressed air into the water jacket.

How do you tune?

 

[Deadspool]

OEM mitsu HG with ARP head studs, engine was surfaced before assembly.

Thats why im confused, as the engine drove 35k miles in another talon, and then sat for 5 years before I installed it in this car. I've known this engine since its creation.

Stock tune, 14b, 2g maf, rx7 550's, stock boost atm.

 

[BogusSVO]

Same injectors in both engines?

 

[Deadspool]

He used these injectors with link.

Do you think I should go back to 440's?

I wonder if its a combination, excess fuel causing the smoke, from the injectors. and me being terrible at bleeding the coolant.

 

[BogusSVO]

If anything you would be rich if the ECU is set for 440 and you are running 550.

The reason I asked about the injectors is I am looking for the common between both engines.

2 diffrent engines to fail the same way.... something that was on both engines caused the failure.

A failed HG is NOT the cause of a problem, but the result of a problem.

It could even be a weak fuel pump, not delivering enough fuel under boost.

What color is the smoke?
White = coolant
Black = Fuel
Blue = Oil

 

[Deadspool]

Right.

I'll have to try a leak down check to be certain, but the cyl's are not washed, as far as I can tell anyway.

Yeah, the smoke is dominantly white, smells like fuel.

I cant imagine the engine failed to detonation. I went ahead with the rewire when I was running the other engine, and the color of the plugs shows me a healthy burn. again, on both engines.

I like that train of thought though.

 

[Mark L]

Both engines pushed coolant into the overflow? Was it only during WOT pulls? Usually pushing coolant is only a head gasket, if at WOT. But could be other culprits too, like a cracked head or block. It can be hard to tell from plugs too since you need to flex the head to make it leak. Just my 2 cents.

 

[NHerron]

I really hope you did the basics first like a new rad cap, ducting (if you have a giant FMIC), both fans working at idle, coolant system pressure test (maybe a leak in the system such as waterpipe oring)

 

[Mark L]

Good call on the basics, I looked past it!