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Old 09-24-2011, 10:37 PM   #31
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Originally Posted by teefehr View Post
Thanks Ageless! Good information.
You're welcome.

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Old 10-01-2011, 09:08 AM   #32
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Unhappy

Carb is on and tuned with no jet adjustments however, needs a different squirter spring. Also seems to have a low idle miss. Possible vacuum leak. Checking further. May have to reseal the manifold. (3rd time)

Overheating occurred during the dyno. Suspect the recently installed water pump. New stock water pump revealed 1/6" to 3/16" gap between impellers and casting surface. Not sure what the tolerances are but this is definitely part of the problem. High performance water pump enroute. When the radiator was drained by removing the lower hose and all hoses off the radiator appeared to leak down slowly. When pouring water into the radiator the fluid appeared to come out slowly also. Possible defective radiator too? Radiator enroute to have it evaluated by the shop that built it.

I have only one word to say. UNBELIEVABLE!!!!!!!!!

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Old 10-01-2011, 09:50 AM   #33
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Sorry to hear you are having so much trouble. Well hopefully everything will be resolved soon and you will have a cool running cj.
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Old 10-02-2011, 11:41 PM   #34
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Appreciate the support Dempsey. Hopefully I'll get this behind me and I'll get some wheelin' in before the snow flies.
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Old 10-08-2011, 10:00 AM   #35
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Update:

Found silicone sealer in the radiator and water ports. Also found what appears to be a 1/8" rod in the water ports in the heads. What is this for?

Previous shop used a metal pan gasket to seal the Edlebrock aluminum intake. I have been told this won't get the job done. This is the reason for the vacuum leak and the abundance of silicone around the water ports.

New radiator here, heads out to be rebuilt.
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Old 10-18-2011, 11:28 AM   #36
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Heads should be done this week. Original shop wanted $700.00 to rebuild both heads. Hmmm! This is the third "rebuild" in two years. Finally went to someone that speaks Jeep. I don't mind helping out someone that does a good job, stands behind there work and does not expect for your to pay for his kids braces and college education all at one. I hope I have that now!

I don't know what it is that attracts me to loser shops lately. Anyhow, I'm thinking trial run next week sometime. Two years worth of frustration will be gone. I hope!
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Old 10-18-2011, 11:44 AM   #37
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I hope to see her going soon. Glad you got a better shop found.
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Old 10-23-2011, 09:02 AM   #38
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Picked up the heads from the machine shop. The guy that did them said he was glad to see these as they were about to come apart which would have been very expensive. Hopefully everything go back together fine and I can bring it home next week.
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Old 10-31-2011, 11:45 PM   #39
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My jeep is home! To begin with the repairs would take me the rest of the night but I'll attempt a readers digest version.

The jeep was overheating on hills and having flooding (spill over) problems from the carb.

The fix was several issues. Following the directions from Edlebrock, we mounted the stock heat shield on the underside of the intake manifold. Baffles were installed around the drain holes to eliminate the PCV valve suction from sucking the oil into the carb on hills or being splashed into the heat shield. Sides gaskets were installed to eliminate the intake manifold leak.The intake manifold leak caused the engine to run very lean causing heat and oil to cake on the valves. The valve stems were also galled. The heads were totally rebuilt because of the damage caused by the original shop that did the work.They failed to do the following:

1. Transfer the stock intake manifold heat shield to the Edlebrock manifold.
2. Failed to install the intake manifold side gaskets.
3. Used RTV sealant around the valley pan gasket on three separate installs. The sealant did not cure and ended up in the waterways in the block, heads, water pump and came to rest in the radiator. These areas were flushed, however a new radiator was installed.
4.The stock water pump impellers to casing dimension were supposed to be between .040" to .060. The water pump that was installed has two impellers at a loose .065". The rest were up to 3/16"away from the casing. The pump was not moving the appropriate amount of water to cool the engine. A new high flow water pump was installed.

Upon running the engine with these repairs the heat scan readings were @ 163 degrees F. The previous readings were from 208 degrees to 280 degrees F.

The 600 cfm Edlebrock carb with an offroad kit was changed to a Holley 470 cfm Truck Avenger carb. The front metering plate had a broken emulsification valve and the stock power valve was too weak. Since the new carb is under warranty a new carb was ordered. In order to dyno the motor with the repairs mentioned above, shop repair parts were placed into the existing Holly carb and the following performance information was noted. The engine never stumbled, a significant increase in horsepower and foot pounds of torque were noted especially when the secondaries were brought on line. The jets were replaced to give me an air to fuel ration of 14 at idle and 13.66 at peak performance. Without a pusher fan in front of the dyno the engine never operated even close to an overheat condition. My stock flexlalite electric fans were adequate enough to cool the motor when placed in the midrange cooling position on the rheostat.

The moral of the story at this point boys and girls is when it comes to using a shop to do repairs please check them out first. Make sure they know what they are doing. So far the cost of the repairs will be in the neighborhood of $4,000. I will more than likely end up in litigation with the original shop.

I also have a saying that is appropriate in describing the two years of hell I have been through. You can buy the oats before or after they have gone through the horse. Low prices are soon forgotten when you are faced with inadequate performance.

One thing I failed to mention was that the motor and heads were rebuilt by a reputable local company. Their work was impeccable.

The way my jeep runs now is what I had hoped for two years ago. Thanks for all the encouragement, especially from Dempsey.

On a side note the following also happened from ther original shop.

I was given the ok to take my Jeep home after the bogus shop repaired the vacuum leak (3rd time) and repaired the heat and fuel gauge. I drove this jeep home, 23 miles, with no water in the radiator. I added two gallons of antifreeze once I arrived home and discovered the heat gauge was not working and the engine was in a significant overheat condition.

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