Big block chevy coolant coming out of exhaust

Dont worry there is no coolant. Tru Trac billet-aluminum pulley and bracket kit adds a lot of class to this 572-ci big-block in a 1969 El Camino.

White exhaust smoke is an indication of water coolant in the exhaust.

Big block chevy coolant coming out of exhaust. Start with draining the engine coolant. In fact might be the right time to replace the 5050 Green Anti-Freeze and distilled water only since it should be done about every 3 years anyway. DO NOT USE THE ORANGE DEX-COOL.

DEX-COOL IS DEATH. Replacement exhaust manifold studs. Freeze plugs are often situated just behind the exhaust manifold.

Coolant leaks from these plugs may seem like it is coming from the manifold itself. Freeze plugs are the expansion plugs in the side of the engine block and cylinder head and often corrode from. A Meziere billet aluminum electric water pump bolted to the front of the engine handles coolant circulation.

Tru Trac billet-aluminum pulley and bracket kit adds a lot of class to this 572-ci big-block in a 1969 El Camino. Serpentine belt requires the use of a reverse-rotation water pump for a 1988-and-newer engine. Not only that engines have a cool chemicle reaction that makes water when an engine is cold so b4 warm up a little water coming out the pipes is probably just the motor doing what it is supposto.

It will go away once warmed up. You dont know what youve got til. Coolant leaks past exhaust manifold mounting studs.

The last 2 studs for the exhaust pass through the coolant journals in the head. I had the same issue. Drained coolantremoved exhaust manifold remove the last 2 studs.

Cleaned up studs cleand up threads in head. Let air dry for a few days. Used a thread sealant from permatex.

Water coming out the exhaust is a bi-product of combustion and can be perfectly normal especially with a cold engine andor cold exhaust. A nice drive down the road should warm the engine and exhaust sufficiently to eliminate the water coming from the tailpipe. White exhaust smoke is an indication of water coolant in the exhaust.

The car running sluggish and using lots of fuel can be caused by compression loss. Look at the coolant level color and smell with cold engine - dont open the high pressure reservoir with engine hot as hot coolant may spray you in the face. A huge symptom of a cracked block is smoke coming out of the engine.

If you let this go for too long it will lead to other engine problems. The smoke is due to emissions fumes leaking through the crack instead of the exhaust system and out the tailpipe. With this you will also likely experience a drastic loss of power when trying to accelerate.

As long as you are not having to add coolant to the radiator you are probably just seeing condensation built up in the exhaust system burn off on initial start up thanks to Ethanol gasoline. White smoke is from watercoolant but if system is FULL I would not worry about it and right it off to condensation. If you are very unlucky it happens that the engine block or cylinder head may crack and this can cause coolant to flow into the combustion chamber or out through the exhaust.

This is very rare though and usually often happens after an overheating engine or something similar. To my surprise I then discovered that coolant was leaking from my exhaust manifolds. In particular from 4 studs that thread into the water jacket of the heads.

The first irregularity I observed was that the exhaust manifolds were installed using gaskets. It was my understanding that B engine Mopars do not use gaskets where the exhaust manifold. Big-Block Chevy Cylinder Head Basics.

The big-block Chevys canted valve heads are largely responsible for the tremendous power capability of the Rat motor and its continued popularity. The original head design is often referred to as having a 26-degree valve angle although this intake valve angle of inclination is only one of. If you see water dripping or steam floating from your tailpipe there is probably coolant entering the combustion chambers.

Antifreeze is run through the engine block to cool the engine. If coolant is making its way into the exhaust a leak or crack are the only possible causes. A process of elimination is the best way.

Notching the bottoms of the cylinder bores is normally required to clear the internals. The block is marked and cut as required. Dont worry there is no coolant.

Pull it out let water spew out the holeit wont hurt nutinoh accept you have antifreeze so make sure to catch it. Then put ARP thread sealant on the bolt and put her back ineven if water is in the hole that sealant will seal perfectly. A young kid named Nab turned me on to the ARP thread sealant.

The freshwater will leak out into the raw-water side and escape. To check for this type of leakage remove end covers from heat exchanger and drain raw-water. Most antifreeze solutions have a color to them and are easy to see if they leak out into the raw-water part of the heat exchanger.

Coolant either leaks past the head gasket out of the engine or past the head gasket into the cylinder and combustion chamber. If you have an external leak you will notice coolant leaking from in between your engine block and the head. This usually will happen just below the exhaust manifold or the intake manifold.

Coolant loss may indicate a poorly maintained cooling system a system fault or even a change in driving patterns. For example a coolant leak could have any of these causes. Overfilling the cooling system.

A faulty radiator cap. A worn-out radiator hose. A leak that only occurs under certain operating conditions.

If you can get clouds of stuff coming out of the radiator you know that its not been working effectively. Keep cleaning until its all clean and you can see through it. You may have to flush the finstubes out with water or a high pressure washer.

Again you must be careful not to damage the radiator finstubes. Drive the guide out from the spring seat towards the combustion chamber. IF THE VALVE GUIDES ARE REMOVED IN THE WRONG DIRECTION THE HEAD CAN BE DAMAGED WHICH MAY RESULT IN WATER LEAKAGE INTO THE COMBUSTION CHAMBER AS WELL AS OFFSET SEAT-TO-GUIDE CONCENTRICITY.

The big-block Chevy goes by many names the Rat the Porcupine and if you go back far enough the semi-hemi. It started life as a major upgrade from the 348409 W motor. What eventually became the MKIV first appeared as the Mystery Engine at the 1963 Daytona 500.

Use a precision straight edge and check for head and block flatness. Chase all of the head bolt holes in the block using a sharp new thread tap and oil. Blow the holes clean of debris using some B-12 followed by moderate pressure compressed air.

FYI - If you must reuse head bolts clean the threads using a wire wheel. The tell tale signs of a blown head gasket are watercoolant mixing with the engine oil andor white smoke coming out of the exhaust pipe. If you are not seeing that it would be tough to say if its head gasket related.

400 small block Chevy engines are known for being hard to cool compared to the 350 and smaller engines. A big part of the cooling troubles with the 400 engines is due to the siamese cylinder design they have as well as the very large bore size.