Coolant leak

[Kalal92]

Working on a 04 Jeep Wrangler with a straight six I'm Not on a wrangler form but seems to be pretty much the same thing under the hood. Replaced water pump coolant seems to be leaking out of but didn't help.

 

 

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[Fernando87mj]

Was it still leaking before the water pump replacement? Try checking under the thermostat housing or any split hoses that go into the thermostat housing

[Kalal92]

Before and after I have a video but it won't let me post

 

 

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[Dzimm]

Upload the video to YouTube then post the link. It looks like it's running down the backside of the belt and harmonic balancer so Id first check the hoses and thermostat housing for leaks. If it's not from there you likely aren't getting a good seal between the water pump and block. That's a very significant looking leak so you've got a decent size hole somewhere.

[Kalal92]

 

 

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[Kalal92]

Video before water pump replacement but still doing the same thing.

 

 

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[HOrnbrod]

 

Agree with the thermostat housing as the most likely cause.

[Kalal92]

 

Also going to buy a new housing for it see if it fixes the problem

 

Thanks

 

 

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[Dzimm]

While that's apart, make sure the surfaces the housings mate are not damaged in any way, no chips, scratches, or divets.

[Kalal92]

Cleaned and giving it another shot

 

 

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[Jeep Driver]

That block is not what I call clean. 

 

 

Permatex #2, not silicone.

[Kalal92]

Better than it was before but new problem how to get broken bolt out

 

 

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[offthepavement]

This is fun please share more.torque bar that sucker after tapping it.don't listen to me..it will most likely break off deeper in

 

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[Dzimm]

Put a torch on it and tap it with a hammer a very little bit to help break it loose and use some pb blaster or similar penetrating oil. If you can, grind 2 opposing sides of the bolt flat so you can fit a wrench on it for more leverage. Just make sure you cover the holes in the engine to avoid getting any debris in there.

[Jeep Driver]

I'm confused, pic prior, no broken bolt, now, broken bolt......????

[Kalal92]

Happen while putting me thermostat cover back on. Got the bold out with a bolt remover Kit that tightens the opposite way.

 

 

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[Kalal92]

Update tomorrow when I put everything back together hope for no leak

 

 

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[Keyav8r]

Pardon the partial thread hijack, but a tip for preventing/minimizing the potential for broken bolts is to run a tap through the hole to clean and straighten the threads before re-assembly. This will also help in getting a better bond if you plan to use thread locker when re-assembling. Use a bottom tap in blind holes to reach as deep as possible. On studs, use a stiff wire brush if you can't run a die over the threads.

 

Be careful with Harbor Freight/Chinese taps as they may have problems with thread size and pitch as well as quality (they may be more prone to break off in the hole).

 

If a bolt is hard to thread in, don't keep cranking on it. Back out, see what's causing it and fix it. Takes less time than getting broken bolts out. Common sense, but we've all probably been guilty at some point of getting in a hurry and "saving time" by not cleaning or replacing dirty/damaged fasteners.

[Rockfrog]

Another trick I like to do, is to take a similar thread bolt and grind a "cleaning notch" into it. Then run that through. Doesn't remove anything but the debris in the threads. Comes in handy when a tap isn't readily available, and I keep them in the toolbox for future use.

 

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[Kalal92]

Thanks for the help! All back together and no leak!

 

 

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