masseyiroc

just reinstalled my engine after freshing up the bottom end bearings.filled up the coolent in the rad and through the dome to full the block,run it for a bit fulled it up.then i took it for a drive like 5 minutes,when i retured there was alot air bubbles comeing from the rad in the overflow. it was only running like 70 degrees on the gauge.so i let it cool added alittle more coolent then went for another drive same thing.the coolent has a smell like gas.whats up with that blown head gasket?

robsgta

If you have a head gasket blown you will have one of two things happen..
Water in your oil= your water will continually flow into your oil from the head gasket area and your oil will look like chocolate milk.
Or your water will drain into a cylinder and flow out your exhaust pipe usually leaving a huge white cloud that isnt easily missed.

dream02transam

Ok it is possible for a blown head gasket to cause air bubbles in a coolant over flow tank, but it happens usually in diesels because of the high compression ration. The compression of the engine is higher than the pressure of the coolant. I have no idea on how much PSi your engine compression is. I know the collant is usually around 15-16 psi in the F-bodys. I know know at what point or how much more the Psi of the engine has to be over the collant for this to happen. I have both a diesel truck and an f-body. For the truck the way to check if air is really getting into the collant is hold on to your upper rad. hose and if it gets rock hard fairly soon after it starts.... on a cold motor.... then its a head gasket. I know thats for a diesel I just thought I throw it in for you just summpthing to thank about... It might not even carry any weight as far as a gas engine goes... but maybe if you have really high compression. Hope it may help and not confuse you.

masseyiroc

no white smoke ,oil looks fine.its just that it had crazy air pressure in the rad that it bubbleing the water in the coolent over flow enough to speaw it all over the place.

Auggie

Had the same problem. Foam and bubbles in the overflow tank. Low fuel pressure when I hit the button caused the head gasket to blow. I did a cyl. leak down test and when I pluged into #2 cyl I had more bubbles in the overflow tank. Oh, I forgot to mention "no white smoke"!

Auggie

masseyiroc

yeah well thats what im saying that it gets rock heard in a hurry like a 5 minute drive from stone cold will do it . i noticed this before the engine came out but i though it was boiling hot be cause the fan wasnt working and the wire just happened to be pulled off the sensor for the gauge.

masseyiroc

im going out right now to do a cylinder leak down test ill let you guys know.oh yeah my spark plugs are light brown and you can see the white center conductor is that a sign of lean condition?

robsgta

A light brown haise on the white ceramic part of your plug is perfect..the brown is from you getting enough fuel.

masseyiroc

leak down test is out of the question for tonite,dont have the proper fittings it get in there and the other fittings are a bastard on the angle plug heads.the plugs are reading fine then ,they are just lighty browned.

iroc2nv

i was always under the assumption that a frothy foamy condition was that of a blow head gasket..

put the max coolant/water into your car ..start it up(with the rad cap off) and let it run....maybe you just have too much air bubbles in the rad/motor and it needs to be burped...thats what happened to my 305...


iroc2nv

Dark_Knights

i would also add max amount of coolant and remove the raditor cap then let the engine idle for awhile...try that see if it helps

Dark_Knights

i would also add max amount of coolant and remove the raditor cap then let the engine idle for awhile...try that see if it helps

FLYNLOW92rs

iTrader: (53)

WTF is that banner, and why did you attach it twice???

robsgta

I dont think hes got a blown head gasket..when the motor strokes up it could force cylinder pressure wich could cause pressure to fill the water jacket ,but on the down stroke theres a vacume that will pull the water into the cylinder..

but I could be wrong..after you purge the radiator fill the over flow half way and see if an access of air contiues to fill the resvoir.
you could also remove your plugs for any sign of moisture..


and dark knight spare us go to signature pics and photo shop requests and have that image of yours shrunk down so you can use it as an AVATAR..

Stekman

no s***. It's annoying as hell now.

THEGENERAL

he could atleast shrink it down to the correct size or something damn

Red Devil

Hasn't that been mentioned before?

Massey, how exactly did you fill the block?

Stekman

Well, perhaps it has. You would have found it if you used this: <A HREF="https://www.thirdgen.org/techbb2/search.php?s="><IMG SRC="https://www.thirdgen.org/techbb2/images/smilies/search.gif" BORDER="0"></A>

Anyway, judging from the sounds of the "dome," the only dome-like thing i can think of would be the thermostat housing.

ljnowell

Get rid of the stupid banner man, and do us all a favor.

Dark_Knights

the banner is not leaving deal with it

dimented24x7

iTrader: (2)

They'll just ban you for spamming... simple as that. Why not do everyone a favor and shrink it down alot and tuck it in your sig.

Dark_Knights

dont know how to place in sig or i would

iroc2nv

wow..
that guy got banned?

i dont agree with what he did or said...but gettin banned? what happened to probation?

meh..im not a mod or admin..i guess you had your reasons..

so any progress to see whats wrong with your motor man?

iroc2nv

Red Devil

2nv, I don't exactly think it was only this thread. Or all public.

As far as the bubbling goes, it is possible to trap air (a lot) in the system by filling through the therm housing. As suggested before, burp the system fully and see if the problem goes away. You may just be smelling the gas from elsewhere and getting paranoid (understandable) as it's a newly freshened engine.

iroc2nv

ok i guess there is alot i didnt/dont see...

its not me thats looking for the answer..i was merely asking the starter of the thread (masseyiroc) if they have found the problem.

iroc2nv

robsgta

Hey Massey keep us up to date on how things progress..


Hope all is well and also that its not a head gasket I have had to replace 5 at different times on my TPI and its no fun.(Especially with aluminum heads)I do believe that I can change a head gasket in the dark and possibly even blind folded..

masseyiroc

i filled the rad first then i filled the block through the plug by the therostat.i did let it run for a while and burp the system. i will do it again but if it does it again the heads are coming off.the plugs look almost all the same

masseyiroc

well i topped it off in the rad pulled that plug in the intake out again the engine was full.run it for about 15 min with the rad cap off.just before i gave up it burped and coolent level went down,fulled it up then went for a drive.i think its fixed didnt blow any air into the overflow.i drove it for about 20 minutes seem like that fixed it.ill keep you guys posted if it does it again .thanks for the help