Thread: Engine got hot, probs to look for?

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Hey all! I have had a problem with my freshly built 496. I was testing out my new MT drag radials on a back street the other day and made two passes of about 1/8 mile and looked at my temp gauge and saw it was buried past 240. I immediately shut her down and noticed that the fan belt had been thrown off. I waited for it to cool down, put the belt back on, and fired it back up. I didnt get on it after that, but it seemed to run fine and maintained at 182. Could I have damaged it in a catastrophic way? What should I check to be sure everything is still ok? Help me out guys. I dont want to drive it again if I am going to hurt it more. Or How can I tell if it is fine and I did no irreversable damage? Thanks In advance!

I don't think it was hurt if it started up after cooling down. I would check the alignment of your pullies, and for awhile keep a close eye on the temp gauge. At 240 the only thing that was close to danger would be the trans if it is automatic they don't like high temps (260+) for long periods of time.

I don't think you hurt it- you said it ran fine afterwards so if it was damaged you would've already known it.
Check the oil and if it's turned black change it.

If it's going to break - then it's going to break, just drive it and enjoy it.

You're ok. Tonight in traffic my truck got up to 230. Pulling a trailer it has hit 250. This is a rare occurance, but it has done it.

If you had run that way for a long time, it might have weakened the oil rings, but for the short time you drove it, you are probably ok.

Don

If you didn't rub it long and it re-started you are probably ok. As long as it is not an aluminum block and heads, a little overheating won't usually do much damage.

my old 548 ran 230 all the time .as long as the oil psi dose not drop you are ok

Originally posted by 66lemans
Hey all! I have had a problem with my freshly built 496. I was testing out my new MT drag radials on a back street the other day and made two passes of about 1/8 mile and looked at my temp gauge and saw it was buried past 240. I immediately shut her down and noticed that the fan belt had been thrown off. I waited for it to cool down, put the belt back on, and fired it back up. I didnt get on it after that, but it seemed to run fine and maintained at 182. Could I have damaged it in a catastrophic way? What should I check to be sure everything is still ok? Help me out guys. I dont want to drive it again if I am going to hurt it more. Or How can I tell if it is fine and I did no irreversable damage? Thanks In advance!

i doubt you hurt it, i threw the belts all the time on my 496, even on my wedding day, "boy did i hear it then..." but i bought a cog belt kit and never threw a belt since even when im revving 7400rpm at the track, look up www.blackmountainprecision.com
i even tried march pulleys and they didnt work for me, guys kept telling me pulleys werent lined up but after i let them try and line them up better they would just say yeah they are pretty close, big blocks are known for belt throwing

I, like the others, think that you've probably got nothing to worry about. However, if you're a pesimist, like me, and simply asking for things to look for, the only other thing I would look for besides those mentioned above, is water in the oil. It's possible, I suppose, that you could've warped one of the heads a little; but, I really doubt it.

Just do a few checks. Water in the oil is a good one. A cranking compression test would probably tell you if you did any real damage. Also, look for metal shards when you pull the dipstick. If you dont see any of the above, make sure your thermostats fine and grab a bigger radiator. Then drive