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dvrracing
07-22-2015, 04:49 PM
I have a 68 Camaro with a 496 BBC. The car runs 10.50s launching at an idle with foot brake with 110 octane gasoline. Now I have a major problem. I noticed the radiator was really low and the oil level really high. I drained the oil and left the drain plug out. When I started filling the radiator with water it started coming out of the oil pan. I pulled the intake and there was no signs of anything leaking so I carefully replaced the gasket set and put it back together. Same thing, pour water in the radiator and it comes out the drain hole in the oil pan. I know I could have a cracked head or bad head gasket but the circumstances make me think even worse. Maybe a cracked water jacket in the block. If the block is cracked I have a question. I don't know a thing about alcohol other than it runs a lot cooler and so forth. My question is would it be possible to run the car on alcohol with a dry block (no coolant). I know I would have to watch the oil temperatue of course and would probably have to pull the car back to the pits from the finish line or should I go ahead and rebuild the entire engine with a fresh block. The motor only has about 40 passes on it. None of the cylinders are effected by the water leak. It sounds great and runs great. But when I pour water in the radiator it goes straight to the oil pan. If the block is cracked would the alcohol thing be within reason or a stupid thought? Any good advice would be greatly appreciated. Thanks

Swiley383
07-22-2015, 05:38 PM
I would have the block and heads pressure checked and go from there.Don't know if anybody running a dry block for bracket racing. Check your heads and deck with a straight edge. Did the problem start recently or has this been a on going problem?

Swiley383
07-22-2015, 06:10 PM
One more thing to check place your head gaskets on the block and make sure everything lines up correctly. I would do the same on the heads may even put the bolts thru the heads to check the water jacket alignment. Seems like I saw a artical some where about head alignment with water jackets being a problem with a certain brand of aftermarket heads.

dvrracing
07-22-2015, 09:21 PM
Never had a problem before. Had not ran the car in a a few years but started it regularly. Always ran pure water and water wetter at the track and then drained it and put antifreeze in before winter and circulated it with the electric water pump. After changing the intake gaskets and still had water going in the oil pan I looked through the heads with a good light for water in the camshaft area but there wasn't any. If a head gasket was leaking or a head was cracked I would think it would have to be leaking into the camshaft area. I have to wonder if there was an area in the block that held water and wasn't displaced with the antifreeze and then busted the block somewhere around the cylinders. Water will run into the oil pan as fast as I can pour it in the radiator. I work out of town a lot and we may have gotten a freeze before I put antifreeze in it. Last time I had it at the track everything was fine. Something happened since then. As bad as the leak is I think there is a good chance of the block being busted. I was just hoping to find a way to keep racing without having to build another motor. I may go ahead and pull the heads and check them including the things you mentioned. I just have a bad feeling about not finding anything in the head area as bad as its leaking. I've never tore down an engine that sounds so good. I really appreciate your response.

dvrracing
07-22-2015, 09:24 PM
I forgot to mention the heads are original with the block out of a 1977 truck a one ton probably since it is a four bolt main.

curtisreed
07-23-2015, 03:58 AM
I have seen quite a few guys run alcohol and dry blocks, but they were all injected and towed their cars. I personally wouldn't do it, but have seen it done successfully. I run alcohol but use a carb.

Curtis

oldandtired
07-23-2015, 07:25 AM
I would drain everything and remove all the water jacket plugs in the block and heads. Slowly add water to the radiator. As water starts coming out of the lower holes (and not running out the oil pan) you can replace the water jacket plugs. The the theory is the more you add, the higher up the crack/leak.

If it's a low end crack, consider block fill up to the bottom of the water pump holes.

Your quote "I work out of town a lot and we may have gotten a freeze before I put antifreeze in it. Last time I had it at the track everything was fine. Something happened since then. As bad as the leak is I think there is a good chance of the block being busted."

Any chance a son, nephew, or neighbor took it for a ride while you were out of town? Your description of water running out the bottom as fast as you pour it in sounds fatal.

dvrracing
07-23-2015, 08:40 AM
I've seen guys do things successfully that didn't work so good for me. That's just my luck though. But your answer is one I was looking for and makes me want to try it with a carburetor. I don't have a lot to loose. If it tears up hopefully I won't hurt my high dollar Lunati parts (crank, rods, pistons, roller lifters and rockers). Right now my shop is full of stuff, a lot of which I need to get rid of (two asphalt karts, two four wheelers, seadoo, Polaris Ranger, and two old motors on stands). It's hot here in Oklahoma right now and with some health issues at my age (60) right now I just can't get myself motivated to work around all the stuff in my shop. I was getting ready to load the car on the trailer when I pulled the dip stick and found the problem. Now that I can't right now until I decide what to do has really got me wanting to get back to the track. Thanks

dvrracing
07-23-2015, 09:27 AM
Partially filling the block is a good idea. Only problem is I will have to pull the engine to do it. With a leak this bad I'm actually afraid some of the filler will end up in the oil pan if I don't. But pulling the motor would probably be the thing to do. I may pull the motor tonight, then pull the oil pan, add water and see where it comes out. Thanks for the suggestion.

Swiley383
07-23-2015, 04:53 PM
Sure sounds like the block is busted. Depending on where and how bad a sleeve my be able to fix it. I have seen some blocks that were able to be sleeved that I thought were junk.

dvrracing
07-23-2015, 07:03 PM
That would be nice if a sleeve would fix it. You may be right. It could be cracked in a cylinder below where the rings travel. All the spark plugs look great and all cylinders seem to be hitting strong. I will for sure check the cylinders. Based on the water level in the radiator I think it's below the heads. Something I forgot to mention is when I pulled the intake I had a busted lifter on the #7 intake. The lifters are Lunati high rev pop up roller lifters. After I drained the oil I ran a magnet through the drain hole in the oil pan and retrieved the the roller in several pieces and seven needle bearings. This may explain the miss it had last time at the track although the last couple of passes were the best it's ever ran. But I had made some timing and carb changes as well. The camshaft lobe looked perfect so I don't think this could have caused the problem but I'm not sure. After replacing the lifter and intake and setting the valves I put it back togrther and found I still had the same problem. So I pulled the bottom radiator hose, added oil and hooked everything up and started it for about a minute and it sounded better than it ever has. I'm so frustrated I even thought about selling it and tellin the problem of course but if I did I know I would be kicking my self in the ass afterwards.

curtisreed
07-24-2015, 03:47 AM
I don't know where you are in Oklahoma, but you are right. It's hot and humid right now. I live just south of Tulsa. Filling the block now I'm afraid would make the cylinders out of round. I only commented about the dry block with alcohol working for people, but I have to say that I would be pulling this engine and fixing things right. That said it is your engine and you can do as you please. I do understand the frustration and thinking about putting all that work in right now in the heat. Do you run at Tulsa or Nobile?

Curtis

dvrracing
07-24-2015, 10:30 AM
I live just outside Blanchard so I usually go to Noble since it is only about 30 miles away. I go to the track in Tulsa once in while but haven't been there in a while. I have a friend who races there and at Centerville named Toby Blaylock with his friend Brian. He runs a 67 black Camaro with a blown alcohol injected motor. I think he's still running a funny car engine he bought off John Force. He's really fast when he makes a good pass. I quit going to Thunder Valley on Friday nights because now they offer drivers a choice as to whether or not they want their times posted and it seems like well over half the times aren't posted which spectators want to see. It seems a lot of the drivers choose not to post times for no apparent reason. That or the forgets to turn it back on. Is Tulsa also doing this on Test N Tune nights?

dvrracing
07-24-2015, 09:08 PM
I really appreciate everyone's help. I guess I'll start making some room in my shop so I can do it right. Pull the motor and fix or replace whatever is needed. Probably the block. Thanks Guys

curtisreed
07-27-2015, 03:36 AM
As far as I know, Tulsa always has the clocks on during TNT. Nobile does a lot of the fast street car stuff on Fridays though. Good luck with your rebuild, I hope you find something easy although I suspect otherwise.

Curtis