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Author Topic:   what did i hurt
Dirt Full Roller

Total posts: 37
posted May 23, 2005 07:28 PM  
ok, first time ever racing last night and it didnt go too well. I started leaking from a valve cover in the heat, so i pulled off and replaced the gasket. Feature came and I tossed a power steering belt, and it musta took my fan belt with it. I ran for about 2 laps before the temp rose, and it rose fast, it pegged the gauge at 280 and as soon as i saw it, i shut it down and rolled off the track. well, the oil that leaked was from a bent valve cover, not the gasket. so it was leaking again. it leaked on the exhaust and caught fire. other than that the car ran awesome! my question is, what did i possibly hurt by running it that hot. its a brand new engine and i hope i didnt fry it.

oh yeah, its a 355 chevy

[This message has been edited by Shortfuse15 (edited May 23, 2005).]

Dirt Maniac

Total posts: 165
posted May 23, 2005 07:52 PM  
how much compression if it is a 9:1 motor and u have a good fel pro gasket you will be fine but if it is a 14:1 motor with a corteco (junk) gasket you might need to change head gaskets

Dirt Full Roller

Total posts: 37
posted May 23, 2005 09:26 PM  
its 9:1 and i have those blue felpro gaskets

Dirt Freak

Total posts: 402
posted May 24, 2005 07:44 AM  
Change the oil and filter, then keep a real close eye on the temp guages for a while, scratch that, forever. Get a 240 light. SO you won't have to take your eye's off the track.

Dirt Maniac

Total posts: 148
posted May 24, 2005 10:25 AM  
When in doubt, a simple compression check and check of the plugs will provide plenty of Information.
If you are brand new to racing and lack a little experience take your plugs (in order)to an experienced engine man, he'll look for signs of detonation or shrapnel attached to the plugs. Maybe a knowledgeable racer in one of the upper classes at your track will look at your plugs.

Some People Race For A Living; I Live To Race

Dirt Full Roller

Total posts: 74
posted May 24, 2005 02:10 PM  
I did the same thing last year, ran 2 more races motor ran fine, temp was fine, compression was fine and boom pulled 2 piston in half trashed the whole motor.

Dirt Full Roller

Total posts: 48
posted May 25, 2005 02:10 PM  
Seen the piston thing and also when you tear dowm next season to machine or change cam you find out you cant get the old one out or new one in. Usually warps the line bore of cams.

Dirt Full Roller

Total posts: 45
posted May 25, 2005 03:13 PM  
We run 270 the first night out and broke a head. Changed heads and ran one more night and it blew 6 and 5 cylinder out. Took cam,crank,rod,and lifters.

Dirt Maniac

Total posts: 119
posted May 25, 2005 06:00 PM  
i ran a 9.5 comp motor for 25 nites i was happy when it came off at 250. wrapped the temp gauge all the way around twice motor still runs fine. Found out later that the dist wouldnt stop advancing. set at 34 at 4000 but when it turned up it advanced futher the higher it reved

Dirt Freak

Total posts: 369
posted May 25, 2005 10:38 PM  
usually with those temps you take the tension out of the rings at the least if not more damage you should never let it get above 240

drive hard or drive home

Dirt Full Roller

Total posts: 37
posted May 28, 2005 09:49 PM  
well i checked it out, compression is good, 150psi all around. plugs looked ok. no foriegn material and they were colored fine. i got to thinking that maybe it didnt get that hot. The fire was right under the temp sender and it fried the temp wire. maybe the fire just heated it up and sent me a false reading... i hope. we'll find out tomorrow night around 8ish...

Dirt Newbie

Total posts: 4
posted May 30, 2005 12:09 AM  
It had to have been the fire. If you woulda gotten to 280 (If this ever hapens to you again - DONT shut the motor off- thats what you have a fire extinguisher in car for !) and you cut it off like that, It would have melted everything together. I.E. Rings to cylenders, numerous cracks in heads.....the whole works. The motor would have been junk.

Dirt Newbie

Total posts: 4
posted May 30, 2005 12:12 AM  
Originally posted by leapinlizard:
Change the oil and filter, then keep a real close eye on the temp guages for a while, scratch that, forever. Get a 240 light. SO you won't have to take your eye's off the track.

240 ! you guys like to run HOT ! I start gettin worried if it sees 210. With a 4 core radiator and a proper shroud, you can run 190-210 with ease.

Dirt Roller

Total posts: 20
posted May 31, 2005 08:00 PM  
We have had this happen before, except for the fire and we always take the poor man's route. We replace the belts and see if it will crank. We watch the temp the next night out and if it stays good then we are good to go. We are not overly experienced engine people and don't have the time or money to tear into motor too deep and check. As far as the temp, I like to run my car cool. I run methanol and pulling of after the feature it is on 150. They say you lose some power from it being that cool but it sure beats fighting an overheating problem.

Dirt Freak

Total posts: 233
posted June 01, 2005 05:25 AM  
We had the same problem one time, but after putting the belts back on and cranking it to cool it down we found where the real problem lied. The number 1 journal on the crank had broke and the crank wobbled and let the power steering belt come off and then let the fan belt come off too.

Dirt Roller

Total posts: 10
posted June 01, 2005 06:09 AM  
Had the same problem with our car. Fan belt came off, tried to finish the race. Engine temp went to 260. We ran water through the radiator to help cool it off while it was running. Replaced the belts, went back racing. Have 20 nights on the motor since.

Dirt Maniac

Total posts: 111
posted June 01, 2005 07:21 AM  
I wrapped my temp gauge around one night, seems like everything is still OK. But it was about 30 degrees that night also...

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