Overheating- WTF? - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Oklahoma · 08-05-2010, 10:26 AM

LOL, yea, that does look a little silly, 200+ degrees

Malibob · 08-06-2010, 10:52 PM

Okay, so here is an update from me. The heads are off. The gaskets were not all blown through or anything but a friend of mine from work said they looked blown. I also have one shiny piston so that may be it. Sunday it all goes back together. Wish I had my other cruiser together- Beaver Falls PA is having their cruise and it is one of the best around here.

**Captainfab** · 08-07-2010, 12:58 AM

Did you have the heads checked for cracks?

ed70 · 08-07-2010, 01:09 AM

if both head gaskets are good i wouldnt rule out intake gasket...

protrash64 · 08-07-2010, 11:28 AM

A clean piston is a sign of 'steam cleaning'

....I had a used motor with a cracked cylinder bore and that one piston was looking brand new.

Glad you found some clues Malibob; probably save the engine before something catastrophic happened.

Malibob · 08-07-2010, 02:04 PM

Quote:

Originally Posted by Captainfab

Did you have the heads checked for cracks?

Kids are on a budget- not enough money to get them pressure checked right now. If once it is together I still have the problem I will be putting my 350 back together and droppin it in there.

Quote:

Originally Posted by ed70

if both head gaskets are good i wouldnt rule out intake gasket...

I got a whole head kit- includes all gaskets for top end so it sould take care of those too.

Quote:

Originally Posted by protrash64

A clean piston is a sign of 'steam cleaning'

....I had a used motor with a cracked cylinder bore and that one piston was looking brand new.

Glad you found some clues Malibob; probably save the engine before something catastrophic happened.

We are hoping that it is just bad gaskets. I have been told cast iron heads are hard to crack- but knowing my luck that will be the problem. I have a way of being the exception to the rule.

Oklahoma · 08-08-2010, 01:28 PM

Well I just turned back my timming and that helped with my heating issue, I turned it back to the correct timming, about 4 deg back and that seems to have helped quite a bit.

Malibob · 08-11-2010, 09:06 PM

Well she started today. Now I got to get her timed then see if I am still burning or losing coolant. Can I run without a thermostat? If so how long?

I know I have to flush everything anf probably do like 5 oil changes in a row but at least it is road worthy again.

ed70 · 08-11-2010, 10:51 PM

iv ran without a thermostat before... its ok till it starts to get cold out... remember though there is a reason its there lol... but you should be fine for a lil while...

jonzcustomshop · 08-12-2010, 07:52 AM

what happens with a thermostat is that it opens and closes, it closes, the coolant in the rad cools, it opens, coolant switches out and cools the motor, and keeps cycling...

with out , your coolant will just keep getting hotter and hotter, because it will not have much time to sit in the radiator and cool.

at least that is how I understand that they work...

we never ran a therm. in our demo derby cars, but after the heat we would run directly to a water hose and run the cold water on the radiator for a few minutes to cool everything down before shutting off.

also a leaned out carb could cause you to run hot...

*lakeroadster* · 08-12-2010, 08:09 AM

You can run without a thermostat, but it's not a long term good idea.

Keeping the engine a constant temperature is a good thing. Running too cold can lead to oil sludge build-up and other related problems.

Malibob · 08-12-2010, 08:11 AM

Just to clarify, I was planning on running that a couple of days to clean it out. Then put the thermostat back. Not a long term thing for me.

protrash64 · 08-12-2010, 07:11 PM

Glad to hear it's going again.

I dont think the power flush for a few days would hurt anything.

Malibob · 08-14-2010, 01:08 PM

stsalvage- all motors are different. if you have read the posts on here some of us are not as lucky as you have been and have had cracked heads, blocks and bad head gaskets. Mine WERE bad

08-05-2010, 10:26 AM	#1
Oklahoma Registered User Join Date: Oct 2008 Location: broken arrow oklahoma Posts: 266	Re: Overheating- WTF? LOL, yea, that does look a little silly, 200+ degrees

08-06-2010, 10:52 PM	#2
Malibob Registered User Join Date: May 2009 Location: Pittsburgh Posts: 392	Re: Overheating- WTF? Okay, so here is an update from me. The heads are off. The gaskets were not all blown through or anything but a friend of mine from work said they looked blown. I also have one shiny piston so that may be it. Sunday it all goes back together. Wish I had my other cruiser together- Beaver Falls PA is having their cruise and it is one of the best around here. __________________ This statement was made possible by a grant from this station and continued support from viewers like you. Flickr

08-07-2010, 12:58 AM	#3
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Overheating- WTF? Did you have the heads checked for cracks? __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

08-07-2010, 01:09 AM	#4
ed70 is very serious Join Date: Mar 2009 Location: moscow mills MO Posts: 154	Re: Overheating- WTF? if both head gaskets are good i wouldnt rule out intake gasket... __________________ 1967 C-10 2wd fleetside LB 350 4spd (dads) - sold 1970 C-10 2wd fleetside LB 307 700r4 - sold 1969 C-10 2wd fleetside LB 327 3spd - sold 1969 C-10 2wd fleetside LB 350 th350 - sold 1967 C-10 2wd fleetside LB 250 th400 -project in progress Chevrolet=one who is dignified enough to expect every occasion is a special one and sees it fit to wear a bow tie... may others come under dressed.

08-07-2010, 11:28 AM	#5
protrash64 Resistance is Futile Join Date: Dec 2006 Location: Mesa,Arizona Posts: 3,519	Re: Overheating- WTF? A clean piston is a sign of 'steam cleaning'....I had a used motor with a cracked cylinder bore and that one piston was looking brand new. Glad you found some clues Malibob; probably save the engine before something catastrophic happened. __________________ 64 CHEVY PICK-UP > http://67-72chevytrucks.com/vboard/s...otrash+re-hash 64 CARRYALL >http://67-72chevytrucks.com/vboard/s...=1964+suburban 66 LB >http://67-72chevytrucks.com/vboard/s...d.php?t=427852 STRENGTH/DETERMINATION/MERCILESS/FOREVER .......posted via stationary device

08-08-2010, 01:28 PM	#7
Oklahoma Registered User Join Date: Oct 2008 Location: broken arrow oklahoma Posts: 266	Re: Overheating- WTF? Well I just turned back my timming and that helped with my heating issue, I turned it back to the correct timming, about 4 deg back and that seems to have helped quite a bit.

08-11-2010, 09:06 PM	#8
Malibob Registered User Join Date: May 2009 Location: Pittsburgh Posts: 392	Re: Overheating- WTF? Well she started today. Now I got to get her timed then see if I am still burning or losing coolant. Can I run without a thermostat? If so how long? I know I have to flush everything anf probably do like 5 oil changes in a row but at least it is road worthy again. __________________ This statement was made possible by a grant from this station and continued support from viewers like you. Flickr

08-11-2010, 10:51 PM	#9
ed70 is very serious Join Date: Mar 2009 Location: moscow mills MO Posts: 154	Re: Overheating- WTF? iv ran without a thermostat before... its ok till it starts to get cold out... remember though there is a reason its there lol... but you should be fine for a lil while... __________________ 1967 C-10 2wd fleetside LB 350 4spd (dads) - sold 1970 C-10 2wd fleetside LB 307 700r4 - sold 1969 C-10 2wd fleetside LB 327 3spd - sold 1969 C-10 2wd fleetside LB 350 th350 - sold 1967 C-10 2wd fleetside LB 250 th400 -project in progress Chevrolet=one who is dignified enough to expect every occasion is a special one and sees it fit to wear a bow tie... may others come under dressed.

08-12-2010, 07:52 AM	#10
jonzcustomshop 1961 crewcab Join Date: Dec 2007 Location: missoula, mt Posts: 6,164	Re: Overheating- WTF? what happens with a thermostat is that it opens and closes, it closes, the coolant in the rad cools, it opens, coolant switches out and cools the motor, and keeps cycling... with out , your coolant will just keep getting hotter and hotter, because it will not have much time to sit in the radiator and cool. at least that is how I understand that they work... we never ran a therm. in our demo derby cars, but after the heat we would run directly to a water hose and run the cold water on the radiator for a few minutes to cool everything down before shutting off. also a leaned out carb could cause you to run hot... __________________ 60 build: http://67-72chevytrucks.com/vboard/s...d.php?t=280904 61 crew build: http://67-72chevytrucks.com/vboard/s...d.php?t=646830 63 build: http://67-72chevytrucks.com/vboard/s...d.php?t=336537 64 'burb build: http://67-72chevytrucks.com/vboard/s...d.php?t=448681 65 'burb build: http://67-72chevytrucks.com/vboard/s...d.php?t=590715 65 build: http://67-72chevytrucks.com/vboard/s...d.php?t=281955

08-12-2010, 08:09 AM	#11
lakeroadster Account Suspended Join Date: Sep 2009 Location: High Plains of Colorado Posts: 2,485	Re: Overheating- WTF? You can run without a thermostat, but it's not a long term good idea. Keeping the engine a constant temperature is a good thing. Running too cold can lead to oil sludge build-up and other related problems.

08-12-2010, 08:11 AM	#12
Malibob Registered User Join Date: May 2009 Location: Pittsburgh Posts: 392	Re: Overheating- WTF? Just to clarify, I was planning on running that a couple of days to clean it out. Then put the thermostat back. Not a long term thing for me. __________________ This statement was made possible by a grant from this station and continued support from viewers like you. Flickr

08-12-2010, 07:11 PM	#13
protrash64 Resistance is Futile Join Date: Dec 2006 Location: Mesa,Arizona Posts: 3,519	Re: Overheating- WTF? Glad to hear it's going again. I dont think the power flush for a few days would hurt anything. __________________ 64 CHEVY PICK-UP > http://67-72chevytrucks.com/vboard/s...otrash+re-hash 64 CARRYALL >http://67-72chevytrucks.com/vboard/s...=1964+suburban 66 LB >http://67-72chevytrucks.com/vboard/s...d.php?t=427852 STRENGTH/DETERMINATION/MERCILESS/FOREVER .......posted via stationary device

08-14-2010, 01:08 PM	#14
Malibob Registered User Join Date: May 2009 Location: Pittsburgh Posts: 392	Re: Overheating- WTF? stsalvage- all motors are different. if you have read the posts on here some of us are not as lucky as you have been and have had cracked heads, blocks and bad head gaskets. Mine WERE bad __________________ This statement was made possible by a grant from this station and continued support from viewers like you. Flickr



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