Do I have a blown head gasket? Broken piston? Does this sound like low compresssion? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 6 Old 07-20-2007, 09:54 PM Thread Starter
 
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Do I have a blown head gasket? Broken piston? Does this sound like low compresssion?

Long story short:

Refering to 1994 V6 5-Speed

Tried to jimmy-rig something in my coolant system (two hints: ~1" hair-line crack in radiator from over heating and RTV red silicone/gasket maker ) to buy me another week, and lasted about 30 miles in this Virginia heat we've been having. Car shut itself down on an interstate going 65-67mph, and won't start. Not proud of it at all, realize it was stupid and that it doesn't work, but I've learned and don't need to be riden about it.

Here's the case: when I crank the engine, it doesn't sound right. When a normal engine cranks, you can here the chugging soung of the pistons moving up and down under compression. Mine does it some, but mostly just whines, and sounds like the starter is engaging the flywheel, but just free spinning it because there is no compression behind it.

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post #2 of 6 Old 07-20-2007, 10:15 PM
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broken timing chain


1962 falcon stock 1992 302 short block, RHS heads, 1.5 inch headers ..bullet cam ..victor jr.. [email protected] on 26x8.5 inch slicks with 1962 suspension(under construction getting back halved)

1979 zephyr , 393w, bone stock 1979 suspension on 26-8.5 tires [email protected]
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post #3 of 6 Old 07-20-2007, 11:46 PM
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Probably popped a head gasket from overheating it...especially if you did to the point where it shut down. 3.8s would tend to do so anyway once the mileage got high
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post #4 of 6 Old 07-22-2007, 11:20 PM Thread Starter
 
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The crack in the radiator was right by the CCRM. If that got wet and fried, would that cause this "not sounding right when I crank the engine" sound?
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post #5 of 6 Old 07-23-2007, 06:55 PM Thread Starter
 
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Anyone?
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post #6 of 6 Old 07-23-2007, 07:13 PM
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Quote:
Originally Posted by SPRADLEYoo7 View Post
Anyone?
What do you mean, "anyone"? You've gotten 3 replies.

If there's oil in the coolant or a milkshake in the oilpan, you have a cracked head or blown headgasket

If it freewheels completely when it cranks, you have NO compression, which could be a broken timing chain except usually when that happens some cylinders will be closed and it'll generate compression on those ones and crank slower/harder on those cylinders
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