can it be my heads? - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Longhorn Man · 08-08-2009, 05:28 PM

you need to verify that your engine is that hot.
Since you are giving numbers, and not saying "the H on the guage" I'll assume you have an aftermarket guage hooked up.
Is this an electric guage, or mechanical?

drewfever1020 · 08-08-2009, 05:34 PM

its a mechanical

drewfever1020 · 08-08-2009, 08:50 PM

ok i did my compression test today!

8 115psi 7 110psi

6 105psi 5 120psi

4 150psi 3 115psi

2 125psi 1 134psi

as u can see they are in plug order!
what does it look like to u?

Tx Firefighter · 08-08-2009, 09:15 PM

Slow down and think through things first. Why would you just jump to a conclusion that it's the heads all of the sudden ?

I could understand if it were using water or blowing steam out the exhaust.

drewfever1020 · 08-08-2009, 09:19 PM

it can be a blown head gasket too!
i knw its somthing internal cuz i got 2 elec fans and it still gets hot on me!

Tx Firefighter · 08-08-2009, 09:23 PM

If it's a blown head gasket your compression will suffer and you will use coolant causing steam to come out of the exhaust. Your compression numbers are good.

drewfever1020 · 08-08-2009, 09:29 PM

well im not making this up but my exhaust does realease some ugly smell and it burns my eyes

Tx Firefighter · 08-08-2009, 09:30 PM

If it burns your eyes, it is running too rich. Steam smells sweet and it it quite noticeable. And I never implied you were making anything up.

You've thrown a pile of money at the problem with no improvement so far. I thought you might want some advice from someone who did this stuff for a living for a long time. Carry on. Throw more cash at it.

drewfever1020 · 08-08-2009, 09:32 PM

so what can the problem be?
i have everything for the cooling system brand new

Tx Firefighter · 08-08-2009, 09:33 PM

It is using a noticeable amount of antifreeze ?

Remove all 8 spark plugs. Go to O reilly and borrow their pressure tester. Pump the cooling system to 18 psi and see if any water comes out of any spark plug holes.

Yes, you have a head gasket or cracked head problem. No, your heads and gaskets are fine. It's that simple.

drewfever1020 · 08-08-2009, 09:41 PM

ok i will do the pump thing 2marrow since its already late
but when i took my spark plugs out today they were all black and smelt funky kinda like antifreeze

Tx Firefighter · 08-08-2009, 09:47 PM

Barring a blown gasket or cracked head, you can quit worrying about the heads as your problem. There's not something that can just go wrong with them and cause your problem other than that.

drewfever1020 · 08-08-2009, 09:49 PM

well ill take another look tommorow thanks man

Ole Blue 68 · 08-10-2009, 07:19 AM

If it's hitting 200 and staying there then I don't think you have a problem at all.

drewfever1020 · 08-10-2009, 09:05 AM

it goes to 2 hundred then it goes to 210!
like i said i have 2 electric fans on is pushing and one is pulling!
thats not right cuz one fan should be able to keep it cool!
i was reading around and my truck has symptoms of a blown head gasket!
bubbles coming from antifreeze when u look in cap
the exhaust smells sweet and burns my eyes
the truck doesnt run good
why plugs are all wet and black

70k52wd · 08-10-2009, 09:09 AM

Post #35, what TxFF said to do. Do that.

drewfever1020 · 08-10-2009, 09:37 AM

i did that yesterday
i could only get to 12 psi and it pops off on me
i rented the kit from advance cause they didnt have it at orielys

Jim_PA · 08-10-2009, 09:51 AM

Burning eyes can be rich or lean. What is your timing at idle?

Ole Blue 68 · 08-10-2009, 12:38 PM

Have you had to add any coolant?

Also, check your oil for any signs of coolant on the dipstick. What some people call a milkshake.

mclairmo · 08-10-2009, 06:34 PM

Plugs are wet and black because carb is too rich. If head gasket was leaking, it would likely overheat, not just run at 210 degrees, which is arguably a 'normal' temp. Or, it would blow white smoke out the tailpipe or blow water out the radiator or you would see oil mixed in with your coolant or water on the oil dipstick. I would keep tweaking the cooling system as I mentioned above instead of pulling the heads. One fan may not keep it cool if the fan does not pull enough air through the radiator or if there is no shroud, or if the water pump pulley is too big, etc. There are many reasons why you could still run hot with even two fans. Are you sure the fans are running at 100%? Proper size wiring and proper use of relays are needed to feed those high amp fans. You may also need a higher amp alternator to feed two fans. I am also not convinced that you are truly runnning abnormally hot. I also don't like your compression numbers. There is a huge varation from high to low. That indicates a possible problem to me, maybe ring gaps are not proper, some cylinders are worn, burnt valves, etc.

08-08-2009, 05:28 PM	#26
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: can it be my heads? you need to verify that your engine is that hot. Since you are giving numbers, and not saying "the H on the guage" I'll assume you have an aftermarket guage hooked up. Is this an electric guage, or mechanical?

08-08-2009, 05:34 PM	#27
drewfever1020 Registered User Join Date: May 2008 Location: san antonio, texas Posts: 412	Re: can it be my heads? its a mechanical

08-08-2009, 08:50 PM	#28
drewfever1020 Registered User Join Date: May 2008 Location: san antonio, texas Posts: 412	Re: can it be my heads? ok i did my compression test today! 8 115psi 7 110psi 6 105psi 5 120psi 4 150psi 3 115psi 2 125psi 1 134psi as u can see they are in plug order! what does it look like to u?

08-08-2009, 09:15 PM	#29
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: can it be my heads? Slow down and think through things first. Why would you just jump to a conclusion that it's the heads all of the sudden ? I could understand if it were using water or blowing steam out the exhaust. __________________ I'm on the Instagram- @Gearhead_Kevin

08-08-2009, 09:19 PM	#30
drewfever1020 Registered User Join Date: May 2008 Location: san antonio, texas Posts: 412	Re: can it be my heads? it can be a blown head gasket too! i knw its somthing internal cuz i got 2 elec fans and it still gets hot on me!

08-08-2009, 09:23 PM	#31
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: can it be my heads? If it's a blown head gasket your compression will suffer and you will use coolant causing steam to come out of the exhaust. Your compression numbers are good. __________________ I'm on the Instagram- @Gearhead_Kevin

08-08-2009, 09:29 PM	#32
drewfever1020 Registered User Join Date: May 2008 Location: san antonio, texas Posts: 412	Re: can it be my heads? well im not making this up but my exhaust does realease some ugly smell and it burns my eyes

08-08-2009, 09:30 PM	#33
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: can it be my heads? If it burns your eyes, it is running too rich. Steam smells sweet and it it quite noticeable. And I never implied you were making anything up. You've thrown a pile of money at the problem with no improvement so far. I thought you might want some advice from someone who did this stuff for a living for a long time. Carry on. Throw more cash at it. __________________ I'm on the Instagram- @Gearhead_Kevin Last edited by Tx Firefighter; 08-08-2009 at 09:31 PM.

08-08-2009, 09:32 PM	#34
drewfever1020 Registered User Join Date: May 2008 Location: san antonio, texas Posts: 412	Re: can it be my heads? so what can the problem be? i have everything for the cooling system brand new

08-08-2009, 09:33 PM	#35
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: can it be my heads? It is using a noticeable amount of antifreeze ? Remove all 8 spark plugs. Go to O reilly and borrow their pressure tester. Pump the cooling system to 18 psi and see if any water comes out of any spark plug holes. Yes, you have a head gasket or cracked head problem. No, your heads and gaskets are fine. It's that simple. __________________ I'm on the Instagram- @Gearhead_Kevin Last edited by Tx Firefighter; 08-08-2009 at 09:35 PM.

08-08-2009, 09:41 PM	#36
drewfever1020 Registered User Join Date: May 2008 Location: san antonio, texas Posts: 412	Re: can it be my heads? ok i will do the pump thing 2marrow since its already late but when i took my spark plugs out today they were all black and smelt funky kinda like antifreeze

08-08-2009, 09:47 PM	#37
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: can it be my heads? Barring a blown gasket or cracked head, you can quit worrying about the heads as your problem. There's not something that can just go wrong with them and cause your problem other than that. __________________ I'm on the Instagram- @Gearhead_Kevin

08-08-2009, 09:49 PM	#38
drewfever1020 Registered User Join Date: May 2008 Location: san antonio, texas Posts: 412	Re: can it be my heads? well ill take another look tommorow thanks man

08-10-2009, 07:19 AM	#39
Ole Blue 68 Registered User Join Date: Aug 2005 Location: Philly Posts: 1,140	Re: can it be my heads? If it's hitting 200 and staying there then I don't think you have a problem at all.

08-10-2009, 09:05 AM	#40
drewfever1020 Registered User Join Date: May 2008 Location: san antonio, texas Posts: 412	Re: can it be my heads? it goes to 2 hundred then it goes to 210! like i said i have 2 electric fans on is pushing and one is pulling! thats not right cuz one fan should be able to keep it cool! i was reading around and my truck has symptoms of a blown head gasket! bubbles coming from antifreeze when u look in cap the exhaust smells sweet and burns my eyes the truck doesnt run good why plugs are all wet and black



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08-10-2009, 09:09 AM	#41
70k52wd Blaze-Air Join Date: Nov 2008 Location: Virginia Posts: 1,117	Re: can it be my heads? Post #35, what TxFF said to do. Do that.

08-10-2009, 09:37 AM	#42
drewfever1020 Registered User Join Date: May 2008 Location: san antonio, texas Posts: 412	Re: can it be my heads? i did that yesterday i could only get to 12 psi and it pops off on me i rented the kit from advance cause they didnt have it at orielys

08-10-2009, 09:51 AM	#43
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: can it be my heads? Burning eyes can be rich or lean. What is your timing at idle?

08-10-2009, 12:38 PM	#44
Ole Blue 68 Registered User Join Date: Aug 2005 Location: Philly Posts: 1,140	Re: can it be my heads? Have you had to add any coolant? Also, check your oil for any signs of coolant on the dipstick. What some people call a milkshake.

08-10-2009, 06:34 PM	#45
mclairmo Registered User Join Date: Jan 2006 Location: Take Off Posts: 1,908	Re: can it be my heads? Plugs are wet and black because carb is too rich. If head gasket was leaking, it would likely overheat, not just run at 210 degrees, which is arguably a 'normal' temp. Or, it would blow white smoke out the tailpipe or blow water out the radiator or you would see oil mixed in with your coolant or water on the oil dipstick. I would keep tweaking the cooling system as I mentioned above instead of pulling the heads. One fan may not keep it cool if the fan does not pull enough air through the radiator or if there is no shroud, or if the water pump pulley is too big, etc. There are many reasons why you could still run hot with even two fans. Are you sure the fans are running at 100%? Proper size wiring and proper use of relays are needed to feed those high amp fans. You may also need a higher amp alternator to feed two fans. I am also not convinced that you are truly runnning abnormally hot. I also don't like your compression numbers. There is a huge varation from high to low. That indicates a possible problem to me, maybe ring gaps are not proper, some cylinders are worn, burnt valves, etc.

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