Will there be any problems from any of the gaskets or seals in my car after it ran so hot? The temp must have gotten to about 300 degrees and there was white smoke coming from the back of the car. After inspecting the engine bay I noticed that there was coolant all over the passenger side of the bay. Coolant appeared to be shooting from the overflow resovoir onto the exhaust manifolds causing the white smoke that was coming from the car. I am not too worried about the engine right now since I am going to swap it out in about six months with a 350 or 400, I just want it to last until I have the cash for the new motor.

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Zepher
'86 Pontiac Trans Am WS6, LG4 305, 5 Speed, CF DF Clutch,
Edelbrock 1406 Carb, Edelbrock Performer RPM 7101 Intake Manifold.
Edelbrock Open Element Air Cleaner: Flowmaster Exhaust, 160* Thermostat,
Grant GT Steering Wheel, MSD HEI Coil, Taylor 8mm Wires, Recaro Seats,
Alpine CD+Changer,Rockford & Soundstream Amps, Premier TS-1040C Subs, Polk Audio highs/mids.
Best ET: 14.94@91.67
WS6 Trans Am

 

If the white smoke from the back of tha car was coming out of the engine compartment from spilled coolant and not out of the tail pipes you might be okay. I had my engine severely overheat several years ago. (Have you ever seen a pegged temperature guage? I have) Now at about 100,000 miles later it's still running strong without ever even having pulled off the valve covers.

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"Racing is life. Everything else is just waiting." - Steve McQueen - LeMans

305 TBI, T-5. 15.4@92 mph
Member Southern California Third Gen F-Bodies

AOL IM: Andy89RS

 

god bless the 305!!

 

I drove my Firebird 3 Miles On a Summer Day Without Any Coolant at all, I had Just driven about 15 miles On My way Home when the lower radiator hose Burst, So I Just finished drivng it home, ther ewas nothing else i could Do.


That Motor is still Running very strong!



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60 Ranchero - Project ( Money Hole )
85 Z28 LG4 - Daily Driver
**Mods**
MSD Superconductors - Vaccum Advance Distributor
14" Open Element - Mech Qjet
KYB all around - Smog EQ Mostly Removed.
Best ET as of yet : 3 hours + to Drive To the Nearest Track

 

Then again, i partially overheated my 85 when it formed an air pocket after driving all day in the summer and lost a head gasket. Then a year or 2 later i started throwing alt/WP belts at high rpms, and even though i always immediately shut down, the small amount of heat cycling that it did manage was enough to help me along to losing another head gasket.
If it still runs fine and isn't making any strange noises then you might have lucked out. My head gasket problems would usually surface as a miss when cold that would get better with rpms and temperature. It would reseal itself when hot, and at high rpms it didn't leak bad enough to affect firing.
...ed

 

The 305 seems to be pretty indestructible from an overheating standpoint. I overhaeted my 305 in my Caprice about 20 times (overflowing reservoir and all) before I gave up trying to figure it out, and just put in a new rad, which fixed the prob. This same engine now has 312,000 miles on it, no probs other than a one-cylinder knock sometimes. Never been opened. Still running strong.

 

My serpentine belt broke once when I was driving by my ex-girlfriends. My temperature gauge was literally past the red. I drove her home anyway since it was close. I'll never forget the cooking sound I heard coming from the car for the next hour. I was sure it was done for.
When I got a new belt put back in 10 minutes later, I raced and beat a 94 LT1 Camaro A4.


2 years and 20,000 miles later and the car is faster than ever. haha..The real test for this engine will be to see if it can handle the Vortech that will be going on there in the next few months. whats up ! whats up boyyyyy!


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91 Formula
305 TPI 5speed
1LE/G92/WS6
Custom cold air intake w/K&N, SLP airfoil, ported plenum, TB coolant bypass,Crane AFPR (47psi),94 octane,Crane Extruded Alum. 1.6 full roller rockers, Timing set from 4*BTDC to 10*BTDC,MSD6AL, Holley 9mm Annihilator Laser shot 50 wires, Ac Delco cap,rotor and plugs, Bosch O2sensor, SLP 1 5/8 headers,SLP catback,3:73s,JET 195* fan switch, Macewen white face gauges, Intellitronix Digital Gauges

Stock throttle body, runners,intake manifold,cam, and heads.

[This message has been edited by theformula (edited December 15, 2000).]

 

Thanks for the replies.
I think the car is running ok, runs just like it did before the problem.