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Author Topic:   Running Hot / Engine Additives
DEEDDUDE
Member
posted October 16, 2001 09:34 PM
Need some help? Engine still running hot. New radiator, 1: 1 Pulleys, four blade 17” fan, shroud, new hoses, new Stewart pump. After I installed the Stewart pump the engine actually started running hotter. Plugs look good, I’ve ran the timing between 35 and 37 still no change. I’ve run with a restrictor and w/o, w and w/o thermostat. Not losing any water. Don’t know what could be the problem. Would running an additive like “Prolong” or other brand help? The only thing left to do is burn up the motor. Frustrated. Any help is appreciated. Deed


jammin
Administrator
posted October 16, 2001 10:24 PM
Sounds like the restrictor your using was allowing too much water to run thru the radiator and not keeping enough pressure in the block. When you put the Stewart on, it ran hotter because it was pumping the water through faster. If the water goes through the radiator, it has to have time to transfer heat, if it doesnt do this, it will run hot. Another thing that I would do is upgrade to a rigid 6 blade fan. The pitch on a good 6 blade fan will pull more air through it and will allow it to transfer heat faster than with less air. This is what it sounds like to me...been through all of this before.
My 1 cent.

jammin


Oldsmobile13
Member
posted October 17, 2001 12:55 PM
How hot is the engine running?


DEEDDUDE
Member
posted October 18, 2001 05:22 AM
Thanks for the help guys. The engine has ran as high as 250 after feature, if i'm lucky to finish due to over heating. Jammin, I've tried different restrictors w/ no luck. I pressure checked the block at 6000 rpm and had 25 psi, w/3/4 restrictor. It has to be something simple I,ve tried just about every combo to fix this problem. 13 block is .030 over. not sure about other measurements. Thanks for the help. Deed


wildcat4257
Member
posted October 18, 2001 05:33 AM
try a product called WATER WETTER. you can find it from several mail order places. if you use it do not mix it with anti-freeze, water only. anti-freeze keeps it from cooling as well. you can get it from TOM CLISE out of MD. # is 1-800-296-3760. runs about 6 bucks.

[This message has been edited by wildcat4257 (edited October 18, 2001).]

jammin
Administrator
posted October 18, 2001 08:12 AM
Get away from the 4 blade and see if that is you problem.


jammin


DEEDDUDE
Member
posted October 18, 2001 06:03 PM
Thanks for the help Jammin, I've had 6 blade on it before with old pump. I was told the 4 blade had more pitch and pulled more air, I'll try the 6 blade again. Could there be something wrong with the head gaskets? I run the shim gaskets for increased comp; about 11:1. Thanks again for the help. Deed

Also tried water wetter and purple ice not much of a help.

WILDphil
Member
posted October 18, 2001 08:41 PM
Are you sure your gage is working properly?


Flatlander
Member
posted October 19, 2001 12:40 PM
What kind of engine are you running? I helped a guy that had a long time overheating problem and all he had wrong was a Oldsmobile fan on a chevy, of course the olds engine turns the oposite of a chevy. Just make sure your fan is sucking through the radiator instead of blowing forward.


phelps
Member
posted October 19, 2001 10:42 PM
Olds turns opposite? You might want to research that a little more bbracer17.


bbracer17
Member
posted October 20, 2001 03:49 PM
The distributor on the Olds 350 turns counter clockwise doesn't it? All my Chevys turn clockwise. I am assuming that the crank rotates the other direction. Maybe I'm wrong about that but either way there is a fan that is for reverse rotation and it is sold at auto parts stores, I thought it was for an Olds. Just be sure that one is not installed.


DEEDDUDE
Member
posted October 20, 2001 05:58 PM
Thanks for all the help guys. looked system over again and again. put on new shroud and the old 6 blade back on. I did wait in line at O'reilly's and bought some prolong. Car ran for about 30 minutes and never got over 205. gave it a couple short blast and the temp. droped about 5 deg., thats sitting in the shop. will do much better on the track. Thanks again. I would let you know how it all worked out, BUT I just started having brake problems. Thats a new post isn't it. Thanks again. Deed


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