still smoking, now what - The 1947 - Present Chevrolet & GMC Truck Message Board Network

matt_field · 05-24-2003, 09:55 PM

alright, my truck still smokes when you step on it, and now it pours out antifreeze out of the overflow hose on the radiator. did overheat till i threw out the thermostat now it stays cool just overflows. anyone?

matt

ddsmith · 05-24-2003, 10:03 PM

Sounds to me like compression gasses are leaking into the coolant and it's head gasket time. Hope that is not the case but if your building that much pressure that is the likely source.

matt_field · 05-24-2003, 10:05 PM

could it be rings? or cracked head as well? this stupid motor has given me more troubles once i bought it. thanks

matt

cdowns · 05-24-2003, 10:32 PM

sounds BAD looks like it's got to come out and either be replaced or rebuilt if it's rebuildable

matt_field · 05-24-2003, 10:36 PM

great.. well for around 1,000 i can get a new 350 in the bag still complete. i might have to part mine and put everything on that and get it for cheap
thanks

**old Rusty C10** · 05-24-2003, 11:02 PM

head or head gasket

matt_field · 05-24-2003, 11:04 PM

thanks guys, ill be pulling the head tomorrow and see whats going on inside, i bet head because this kind of head are usually cracked (461 camel backs) either be replacing or getting fresh 350. im sick of messing with it and not being able to drive this truck its all done this is pissin me off thanks again

matt

**too much stuff** · 05-25-2003, 12:01 AM

Not very often you see a cracked camelback.

jimfulco · 05-25-2003, 04:27 AM

Put a good thermostat in it.

chaptr2 · 05-25-2003, 01:40 PM

Have you done the compression check yet? You said you were going to do that this weekend. What did you find?

Where is the smoke coming from?

matt_field · 05-25-2003, 11:34 PM

never ran compression test, but me and my dad figured out its the head cracked or gasket, well i took the head off today and found a bolt that was finger tight and the rest are not torqued, gasket is shot, putting new gaskets in on tuesday and getting heads surfaced and maged. also the 461 camel backs usually are cracked. i read that all over on the net. and also my machinest said that also as i did have a pair cracked before i bought this motor. thanks

matt

bigjimzlll · 05-25-2003, 11:52 PM

The reason the 461s are found cracked is...they're 40 years old and have been hotrodded to death..and been abused(as in your case) They were very sturdy castings

05-24-2003, 09:55 PM	#1
matt_field Registered User Join Date: Apr 2001 Location: Detroit Lakes, Minnesota Posts: 885	still smoking, now what alright, my truck still smokes when you step on it, and now it pours out antifreeze out of the overflow hose on the radiator. did overheat till i threw out the thermostat now it stays cool just overflows. anyone? matt __________________ 1971 k5 blazer 80k mike survivor 1972 3/4 ton 4wd Cummins 12v 1967 swb 2wd 427bbc 1968 4wd shortbox 1971 Cheyenne swb k10 unrestored 1971 Cheyenne super 40k 402bb survivor 1967 Chevy k10 (first truck) 1968 L78 camaro survivor 18k miles 1969 z28 survivor 60k miles 1969 z28 survivor 39k miles 1969 z28 rs survivor 80k miles

05-24-2003, 10:03 PM	#2
ddsmith Glowing since 1978 Join Date: Mar 2001 Location: Lusby,MD,USA Posts: 532	Sounds to me like compression gasses are leaking into the coolant and it's head gasket time. Hope that is not the case but if your building that much pressure that is the likely source. __________________ 66 Chevy C30 Stakebody Dump, PS,PB, 327cu in 71 Corvette Coupe 454 4 speed 69 Chevy C20 Custom Camper

05-24-2003, 10:05 PM	#3
matt_field Registered User Join Date: Apr 2001 Location: Detroit Lakes, Minnesota Posts: 885	could it be rings? or cracked head as well? this stupid motor has given me more troubles once i bought it. thanks matt __________________ 1971 k5 blazer 80k mike survivor 1972 3/4 ton 4wd Cummins 12v 1967 swb 2wd 427bbc 1968 4wd shortbox 1971 Cheyenne swb k10 unrestored 1971 Cheyenne super 40k 402bb survivor 1967 Chevy k10 (first truck) 1968 L78 camaro survivor 18k miles 1969 z28 survivor 60k miles 1969 z28 survivor 39k miles 1969 z28 rs survivor 80k miles

05-24-2003, 10:32 PM	#4
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	sounds BAD looks like it's got to come out and either be replaced or rebuilt if it's rebuildable __________________ 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

05-24-2003, 10:36 PM	#5
matt_field Registered User Join Date: Apr 2001 Location: Detroit Lakes, Minnesota Posts: 885	great.. well for around 1,000 i can get a new 350 in the bag still complete. i might have to part mine and put everything on that and get it for cheap thanks __________________ 1971 k5 blazer 80k mike survivor 1972 3/4 ton 4wd Cummins 12v 1967 swb 2wd 427bbc 1968 4wd shortbox 1971 Cheyenne swb k10 unrestored 1971 Cheyenne super 40k 402bb survivor 1967 Chevy k10 (first truck) 1968 L78 camaro survivor 18k miles 1969 z28 survivor 60k miles 1969 z28 survivor 39k miles 1969 z28 rs survivor 80k miles

05-24-2003, 11:02 PM	#6
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,313	head or head gasket __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

05-24-2003, 11:04 PM	#7
matt_field Registered User Join Date: Apr 2001 Location: Detroit Lakes, Minnesota Posts: 885	thanks guys, ill be pulling the head tomorrow and see whats going on inside, i bet head because this kind of head are usually cracked (461 camel backs) either be replacing or getting fresh 350. im sick of messing with it and not being able to drive this truck its all done this is pissin me off thanks again matt __________________ 1971 k5 blazer 80k mike survivor 1972 3/4 ton 4wd Cummins 12v 1967 swb 2wd 427bbc 1968 4wd shortbox 1971 Cheyenne swb k10 unrestored 1971 Cheyenne super 40k 402bb survivor 1967 Chevy k10 (first truck) 1968 L78 camaro survivor 18k miles 1969 z28 survivor 60k miles 1969 z28 survivor 39k miles 1969 z28 rs survivor 80k miles

05-25-2003, 12:01 AM	#8
too much stuff Roadtrip! Join Date: Feb 2003 Location: Grand Rapids MN Posts: 13,790	heads Not very often you see a cracked camelback.

05-25-2003, 04:27 AM	#9
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	Put a good thermostat in it.

05-25-2003, 01:40 PM	#10
chaptr2 Registered User Join Date: Mar 2000 Location: Olalla, WA Posts: 705	Have you done the compression check yet? You said you were going to do that this weekend. What did you find? Where is the smoke coming from? __________________ This is only my opinion and it is subject to change. 70 GMC Short box stepside Blown 388 Stroker 72 K/5 Blazer 350/SM465/205

05-25-2003, 11:34 PM	#11
matt_field Registered User Join Date: Apr 2001 Location: Detroit Lakes, Minnesota Posts: 885	never ran compression test, but me and my dad figured out its the head cracked or gasket, well i took the head off today and found a bolt that was finger tight and the rest are not torqued, gasket is shot, putting new gaskets in on tuesday and getting heads surfaced and maged. also the 461 camel backs usually are cracked. i read that all over on the net. and also my machinest said that also as i did have a pair cracked before i bought this motor. thanks matt __________________ 1971 k5 blazer 80k mike survivor 1972 3/4 ton 4wd Cummins 12v 1967 swb 2wd 427bbc 1968 4wd shortbox 1971 Cheyenne swb k10 unrestored 1971 Cheyenne super 40k 402bb survivor 1967 Chevy k10 (first truck) 1968 L78 camaro survivor 18k miles 1969 z28 survivor 60k miles 1969 z28 survivor 39k miles 1969 z28 rs survivor 80k miles

05-25-2003, 11:52 PM	#12
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	The reason the 461s are found cracked is...they're 40 years old and have been hotrodded to death..and been abused(as in your case) They were very sturdy castings __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA



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