Antifreeze in my valve train - The 1947 - Present Chevrolet & GMC Truck Message Board Network

semperfidoordie · 09-11-2007, 10:12 AM

Hey,
I was wondering what would cause antifreeze in my valve train and down to the spark plugs? Could it be a simple intake gasket or do you think worse?

Scott68-93-97 · 09-11-2007, 11:20 AM

Intake manifold gasket is a possibility, but down to your spark plugs sounds like a cracked head

cdowns · 09-11-2007, 11:55 AM

could be inteke or head gaskets or heads themselves

grayw0lf · 09-11-2007, 11:55 AM

You're probably best to pull the heads & inspect. That way you can see if its the head or the gaskets. You probalby have a nice milkshake in your oil pan.

jay6891 · 09-11-2007, 12:01 PM

A friend of mines 442 was doing that right after an engine rebuild. Head gasket had blown filling the cambers up with antifreeze and on the compression stroke it would push the antifreeze past the valve guides and, well you know the rest. I TOLD him to quit harrassing the machine shop about his engine, kinda like pissing off the cook. Don't know what your gonna get.

prg machine · 09-11-2007, 12:04 PM

Best to dump that oil right now and cure the problem. Anti-freeze will take out a set of bearings real quick.

**special-K** · 09-11-2007, 12:17 PM

Worst thing is hydo-lock.Let a combustion chamber fill and go to start.On compression stroke it can bust a piston or bend a rod.Don`t run it until pulling the heads and remedying the source.It`s Russian Roulette.

prg machine · 09-11-2007, 02:08 PM

DUMP the oil! You might luck out. My buddy had a manifold gasket changed at a shop. They didn,t change the oil. Rod bearing let go within 25 miles. GM dealer tore into the bottom end and every bearing was toast. Said it was anti-freeze.

semperfidoordie · 09-11-2007, 03:24 PM

yeah it's not a daily driver right now anyway...just gotta figure out how to get it to the shop without driving it

Scott68-93-97 · 09-11-2007, 03:28 PM

is there antifreeze when you pull the plugs if so Im puttin my money on the intake, but either way dont start it

semperfidoordie · 09-11-2007, 03:35 PM

yeah when we pulled the plugs the antifreeze doesn't run out but the plugs look wet with antifreeze and smell like it...

**special-K** · 09-11-2007, 09:31 PM

Pull the plugs and crank it out,at least for now.

semperfidoordie · 09-12-2007, 10:30 AM

like pull the plugs and then try and start it to push all the antifreeze out?

BB72CHEVKT · 09-12-2007, 10:46 AM

I think that is what he is referring to, does not want the antifreeze to damage
the motor.

Bishops Trucks · 09-12-2007, 10:47 AM

Quote:

Originally Posted by semperfidoordie

like pull the plugs and then try and start it to push all the antifreeze out?

Yep! Thats the idea.

63 & 64 Bowties · 09-12-2007, 10:56 AM

Quote:

Originally Posted by semperfidoordie

like pull the plugs and then try and start it to push all the antifreeze out?

pull the plugs and WITHOUT PUTTING THEM BACK IN, crank it to blow out the antifreeze.

semperfidoordie · 09-13-2007, 09:36 AM

okay..I know that sounded dumb haha sorry...i just wanted to make sure that like turn the key and start it like normal was what I was supposed to do. I'm a newbie to this whole truck working on myself thing...haha...thanks for all the help. I'm going to give that a shot this afternoon after work and see if that helps...Can I pull the intake and look at the gasket without taking the motor out again?

Scott68-93-97 · 09-13-2007, 10:30 AM

yes, no need to pull the motor

semperfidoordie · 09-13-2007, 01:49 PM

sweet cause here on base we have a hobby shop that's open everyday except monday but keeping your motor on a stand is $5 a day but combine that with bills and trying to find a place to live in San Diego for my wife and I it adds up haha...i'm trying at all costs to not sell the truck and to fix it without pulling the motor...cause if not it's for sale right now if I can't get it fixed and get a decent offer i'm selling it

09-11-2007, 10:12 AM	#1
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Antifreeze in my valve train Hey, I was wondering what would cause antifreeze in my valve train and down to the spark plugs? Could it be a simple intake gasket or do you think worse? __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

09-11-2007, 11:20 AM	#2
Scott68-93-97 Registered User Join Date: Jul 2006 Location: Fair Oaks, CA Posts: 475	Re: Antifreeze in my valve train Intake manifold gasket is a possibility, but down to your spark plugs sounds like a cracked head __________________ 1968 Short Fleet 350/700r4 http://67-72chevytrucks.com/vboard/s...d.php?t=249435 1997 Bagged XtdCab Vortec350/4L60e http://67-72chevytrucks.com/vboard/s...44#post2286144 1993 XtdCab Longbed 4x4 6.5Turbo/NV4500 "Daily Driver" 1985 Toyota XtdCab 4x4 22re/W-56/Dual T-cases, Doug Thorley Header, Homebrew front and rear spring packs, Tons of Mods to suspension and drivetrain, 35" boggers, coming soon ARB's and 5.29's, Possible 4.3/700r4 swap

09-11-2007, 11:55 AM	#3
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Antifreeze in my valve train could be inteke or head gaskets or heads themselves __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

09-11-2007, 11:55 AM	#4
grayw0lf Registered User Join Date: Apr 2004 Location: Clanton, AL Posts: 1,253	Re: Antifreeze in my valve train You're probably best to pull the heads & inspect. That way you can see if its the head or the gaskets. You probalby have a nice milkshake in your oil pan. __________________ 85' CUCV M1009!!! The newest addition! 6.2diesel, Th400, NP208, & only 36k miles! 70' C-10 LWB Fleetside - Looking good these days! 05' Dodge Neon 88' Winner Escape Sport 1750 - 4.3v6 94' Seadoo SP 84' Honda TRX200, bare nekkid. Just a frame & tires. Always looking for another project or any good deal!

09-11-2007, 12:01 PM	#5
jay6891 Car Knocker Join Date: May 2001 Location: jefferson,arkansas Posts: 664	Re: Antifreeze in my valve train A friend of mines 442 was doing that right after an engine rebuild. Head gasket had blown filling the cambers up with antifreeze and on the compression stroke it would push the antifreeze past the valve guides and, well you know the rest. I TOLD him to quit harrassing the machine shop about his engine, kinda like pissing off the cook. Don't know what your gonna get. __________________ 68 c-10,91 sportside bed,350 .030 over,4 bolt,10-1 comp,2.05 intake/1.94 exhaust,1.6 Harland Sharp roller rockers,edelbrock rpm cam and intake w/750 carb, 700r4, 3.73 gears,Jacabbs Electronic Igntion w/Accel HEI distributer and super coil. ZR-1 roll pan, filled tailights. Blazer tank. Hidden hitch. 2 1/2" Flowmaster 40's. Parts bought but not installed>> ford 9" posi with disc. CCP front and rear lowering kit 4/5. Cab corners,foor boards,rockers, cab braces, Phatom grill, Painless wiring kit.

09-11-2007, 12:04 PM	#6
prg machine Registered User Join Date: Jun 2007 Location: oregon Posts: 1,069	Re: Antifreeze in my valve train Best to dump that oil right now and cure the problem. Anti-freeze will take out a set of bearings real quick.

09-11-2007, 12:17 PM	#7
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Antifreeze in my valve train Worst thing is hydo-lock.Let a combustion chamber fill and go to start.On compression stroke it can bust a piston or bend a rod.Don`t run it until pulling the heads and remedying the source.It`s Russian Roulette. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

09-11-2007, 02:08 PM	#8
prg machine Registered User Join Date: Jun 2007 Location: oregon Posts: 1,069	Re: Antifreeze in my valve train DUMP the oil! You might luck out. My buddy had a manifold gasket changed at a shop. They didn,t change the oil. Rod bearing let go within 25 miles. GM dealer tore into the bottom end and every bearing was toast. Said it was anti-freeze.

09-11-2007, 03:24 PM	#9
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Antifreeze in my valve train yeah it's not a daily driver right now anyway...just gotta figure out how to get it to the shop without driving it __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

09-11-2007, 03:28 PM	#10
Scott68-93-97 Registered User Join Date: Jul 2006 Location: Fair Oaks, CA Posts: 475	Re: Antifreeze in my valve train is there antifreeze when you pull the plugs if so Im puttin my money on the intake, but either way dont start it __________________ 1968 Short Fleet 350/700r4 http://67-72chevytrucks.com/vboard/s...d.php?t=249435 1997 Bagged XtdCab Vortec350/4L60e http://67-72chevytrucks.com/vboard/s...44#post2286144 1993 XtdCab Longbed 4x4 6.5Turbo/NV4500 "Daily Driver" 1985 Toyota XtdCab 4x4 22re/W-56/Dual T-cases, Doug Thorley Header, Homebrew front and rear spring packs, Tons of Mods to suspension and drivetrain, 35" boggers, coming soon ARB's and 5.29's, Possible 4.3/700r4 swap

09-11-2007, 03:35 PM	#11
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Antifreeze in my valve train yeah when we pulled the plugs the antifreeze doesn't run out but the plugs look wet with antifreeze and smell like it... __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

09-11-2007, 09:31 PM	#12
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Antifreeze in my valve train Pull the plugs and crank it out,at least for now. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

09-12-2007, 10:30 AM	#13
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Antifreeze in my valve train like pull the plugs and then try and start it to push all the antifreeze out? __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

09-12-2007, 10:46 AM	#14
BB72CHEVKT Junior Member Join Date: Mar 2007 Location: Hideaway, TX Posts: 4,950	Re: Antifreeze in my valve train I think that is what he is referring to, does not want the antifreeze to damage the motor. __________________ 71 Suburban 350/700R4 Project Trixie 72 CHEVY,Highlander,SWB,396,T400

09-13-2007, 09:36 AM	#17
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Antifreeze in my valve train okay..I know that sounded dumb haha sorry...i just wanted to make sure that like turn the key and start it like normal was what I was supposed to do. I'm a newbie to this whole truck working on myself thing...haha...thanks for all the help. I'm going to give that a shot this afternoon after work and see if that helps...Can I pull the intake and look at the gasket without taking the motor out again? __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet



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09-13-2007, 10:30 AM	#18
Scott68-93-97 Registered User Join Date: Jul 2006 Location: Fair Oaks, CA Posts: 475	Re: Antifreeze in my valve train yes, no need to pull the motor __________________ 1968 Short Fleet 350/700r4 http://67-72chevytrucks.com/vboard/s...d.php?t=249435 1997 Bagged XtdCab Vortec350/4L60e http://67-72chevytrucks.com/vboard/s...44#post2286144 1993 XtdCab Longbed 4x4 6.5Turbo/NV4500 "Daily Driver" 1985 Toyota XtdCab 4x4 22re/W-56/Dual T-cases, Doug Thorley Header, Homebrew front and rear spring packs, Tons of Mods to suspension and drivetrain, 35" boggers, coming soon ARB's and 5.29's, Possible 4.3/700r4 swap

09-13-2007, 01:49 PM	#19
semperfidoordie Fix It Till It's Broke Join Date: Apr 2007 Location: 29 Palms, CA Posts: 1,616	Re: Antifreeze in my valve train sweet cause here on base we have a hobby shop that's open everyday except monday but keeping your motor on a stand is $5 a day but combine that with bills and trying to find a place to live in San Diego for my wife and I it adds up haha...i'm trying at all costs to not sell the truck and to fix it without pulling the motor...cause if not it's for sale right now if I can't get it fixed and get a decent offer i'm selling it __________________ Tony Black Beauty: 85 C-10 SOLD! Great White: 69 LWB Custom Camper/20 SOLD! Blue Dragon: 72 K-10 SOLD! The Tank 77 K-10 KIA panhandler62: Just don't search for "trannys" no matter how hard yours shifts -- you just won't get what you are looking for. I Made The Official So Cal Board Meet

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