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Author Topic:   HOT, HOT , HOT
DOUBLE J
Member
posted June 10, 2001 01:09 PM
OVERHEATING I RUN A OLDS BODY WITH A MONTE NOSE 4" PULLEY ON BOTTOM & A 5" ON TOP NO WASHER IN NECK TEMP RUNS COOL IN HOTLAPS & HEAT RACE BUT WILL RUN 230 IN 15 LAP MAIN I HAVE HAD A BUG SOME WHERE MAKING THE ENG HESITATE WHEN YOU PUT YOUR FOOT IN IT AND SPUTTERS DOWN THE STRAIGHTS I HAVE CHANGED PLUGS,WIRES,CAP,BUTTON,DIST,COIL,TRIED RUNNING A LITTLE RICHER&LEANER NOTHING HELPS HAVE NOTICED #1 #2 PLUGS HAVE BEEN A LITTLE DAMP WITH GAS WHILE THE OTHERS ARE BURNING CLEAN IM THINKING ABOUT CHANGING POWER VALVE OR CARB .
ANY SUGGESTIONS WOULD BE
GRATELY APPRECIATED

DOUBLE J RACING 21


Pickel
Member
posted June 10, 2001 08:57 PM
check your vent in your fuelcell.. it may be clogged and not letting the fuelcell breathe. it will also make the car run hot. I have run into a similiar problem with my car sputtering down the straight away and a little hesitant.

[This message has been edited by Pickel (edited June 10, 2001).]

DOUBLE J
Member
posted June 10, 2001 09:43 PM
THANKS PICKEL, NEVER THOUGHT OF THAT. I'LL CHECK TOMORROW AND LET YOU KNOW. THANKS AGAIN!!


3mracing
Member
posted June 11, 2001 01:12 PM
How would a plugged fuel cell breather cause the car to run hot? He would notice the plugs running lean if the carb wasn't getting enough fuel.


Hobbystocker
Member
posted June 11, 2001 09:44 PM
You might want to check the timing and make sure it is where you want it.If it's off just enough that may cause your overheating problem also.The extra laps you run in the main may give it the added time it takes to get it hot.Also make sure you are running a "racing" radiator cap and not the stock one.


Oldsmobile13
Member
posted June 13, 2001 01:02 AM
DOUBLE J ,

If you want to find your problem quickly , try and find some one in your area with a Dyno Jet chassis dyno . In less than an hour , you can cover everything that will take you 3 weeks of racing to find . If you can't locate anyone with a dyno in your area , give me a call at 828-286-0780 . I'm in Rutherfordton NC , and we have a Dyno Jet chassis dyno . We help racers every day with similar problems .

Steve

awkwardjeff
Member
posted June 18, 2001 12:16 AM
DOUBLE J, Buy yourself a leak down tester. take all the rocker arms off, all the plugs out and see where it's going. a quick check is to start the motor and look for bubbles in the radiator.........
If you have a head gasket leaking a little it will stay cool for a short race, but run hot in a feature.
I post my thoughts on leak down test on the modified side of this board........everyone should own one. our motor ran 180 in the heat race friday, 230 in the feature......then on Sunday again the same thing...........I leaked our motor to find the head gasket was out , I took the heads off this past week and found nothing more to fix. this is a 400 block, and we run 14.3 compession, OUR head gaskets have a life span of about 12-14 nights of racing.....I leak our motors every few nights. Since I started doing this years ago we haven't melted any pistons.........before that we would melt a piston or two every year.....
Jeff


Stonewall
Member
posted June 20, 2001 10:01 AM
Stonewall may have hit it right on the nose.If you do not restrict the flow of water to some extent it will run through the engine and radiator so fast it does not have a chance to cool.The longer you run the hotter it gets.The shroud is always a good idea to have no matter what.We also run a "shaker" screen in front of the radiator as well as the normal screen.One other thing we do is regularly run a garden hose BACKWARDS through the radiator fins to get rid of packed in mud.Low pressure of course.It may look clean from the front but you would be suprised how muddy it is when you run water from the backside. Let us know how things turned out ok.


Deek
Member
posted June 20, 2001 04:42 PM
Go to www.stewartcomponents.com and read up about cooling issues. It'll help clear up issues on restrictors and cooling.


kkparks_3
Member
posted June 20, 2001 11:47 PM
You could take off every other blade in your water pump to help slow that flow of water. We do that and it seems to help. Others have told us this also.

Kevin

BDS
Member
posted June 25, 2001 03:26 PM
I am a little late on this issue but i had the same problem in my pure stock.over heating and sputtering in the 20 lap main.I corrected my problem by rerouting the fuel line away from any heat sourse. the gas was boiling in the gas line rite before it went to the carb. therefor causing the the motor to miss and run hotter than normal.Just my 2 cents worth.


fast19
Member
posted July 23, 2001 02:31 PM
change the carb if it is not any of those things, we had that sputtering problem with our late model and we changed carbs. we won that night too.


racer2
Member
posted August 12, 2001 09:03 PM
i had a pick up in the distibuter do the same thing Sputtering,would not go past 5,500.


engine
Member
posted August 15, 2001 09:12 AM
Something else you could check that would also tell you if the radiator is clogged or if the fan is close enough to the radiator is to see if the fan will suck a paper towel up to the radiator.


ASToad
Member
posted October 02, 2001 12:43 AM
I had a miss and hesitation like that once and it turned out to be my fuel pump, kinda gives you the feeling of a blown head gasket. And by all means, run a washer in that radiator!]



ssracing
Member
posted November 01, 2001 02:46 PM
try to use a crycler 4 blade fan and try an air box in front or the rad



ssracing
Member
posted November 01, 2001 02:53 PM
sorry about the other messege try using 1\2 rubber fule line stright from the fule cell to the carb I telling you it works I hade the same problem. ssracing


DOUBLE J
Member
posted November 10, 2001 04:59 AM
THANKS GUYS!! I hadn't been in here in a while and I'm still getting replys to my question!! Thanks, lol. Double J


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