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  #1  
Old 04-05-2011, 10:27 AM
jandr1cj jandr1cj is offline
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Default Dropped Something in Motor

I have been reading on this since I bought my truck a few weeks ago and decieded to replace valve cover gasket. Once I had it done, it would not run right. I pulled everything back off and replaced again, still would not run right. Decieded to put old plugs and wires back on and on the driverside back plug(furthest from grill) the plug end was smashed like something flew up and hit it from inside the motor ! I did loose one bolt, the gold one from the coil (the thing on top of motor where you put the other ends of the wires in). How bad did i screw up?
97 Ford Ranger 4.0L v6
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  #2  
Old 04-05-2011, 11:32 AM
Twisty Twisty is offline
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Default Re: Dropped Something in Motor

Way Bad.
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  #3  
Old 04-05-2011, 11:37 AM
jandr1cj jandr1cj is offline
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Default Re: Dropped Something in Motor

"Way Bad"... I didnt drive it anywhere and it was only started and left idling for a bit... I tried to fish it out with a magnet, could it have passed? What should I do?
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Old 04-05-2011, 12:46 PM
CURTS04 CURTS04 is offline
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Default Re: Dropped Something in Motor

look 4 a new motor lol or dismanlte it
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  #5  
Old 04-05-2011, 01:20 PM
Outcast Outcast is offline
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Default

It won't "pass", the intake/exgaust ports are not big enough. And even though you did not drive it, the idling may have scarred the cylinder walls bad enough to start getting oil bypass.

I see it as even worse I'd you tried fishing it out and nothing came out because it could mean the object I'd trapped between the cylinder wall and the edge of the piston.

I would recommend you tear it down to at least the head, scale the damage, and go from there. It won't cost as much as a new engine, you will only replace gaskets from the head up.

Next time you do engine work, stuff a clean rag in the hole before you start getting into small parts.
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  #6  
Old 04-05-2011, 01:56 PM
klinger86 klinger86 is offline
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Default Re: Dropped Something in Motor

tear it down and see you "might have gotten lucky" but really doubt it check everything reallly good while you have it tore down....
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  #7  
Old 04-05-2011, 02:15 PM
jandr1cj jandr1cj is offline
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Default Re: Dropped Something in Motor

Okay that sounds good guys! I was thinking of tearing it down to see how much damage I did before doing anything else. Thanks alot and if you have any more ideas, please post
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  #8  
Old 04-05-2011, 02:39 PM
Fordzilla80 Fordzilla80 is offline
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Default Re: Dropped Something in Motor

If you only did valve cover gaskets, then how did you get a bolt into the cylinder? Sounds like something else let go, or maybe your clearances are wrong. This kind of thing happens on interference motors, but I don't think the 4.0 OHV is one of those.
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  #9  
Old 04-05-2011, 02:51 PM
Botta Ranger Botta Ranger is offline
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Default Re: Dropped Something in Motor

Borescope. 79 hits on ebay. Hell they are selling those snake viewers even in home centers now. Check with your local mechanic.
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  #10  
Old 04-05-2011, 02:52 PM
jandr1cj jandr1cj is offline
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Default Re: Dropped Something in Motor

Right! That is why I dont understand how this happened. I lost a bolt but did not think it went into the motor but its the only thing I can think of unless like you said something else let go. I really just need to tear into the motor and see what is going on. I am going to do a compression check and hope to find something out good.
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Old 04-06-2011, 07:21 PM
Badmotorfinger1 Badmotorfinger1 is offline
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Default Re: Dropped Something in Motor

The missing bolt is not in your combustion chamber as there's no direct passages between the cylinder head and the piston. You could not have dropped a bolt on top of the piston. The bolt is most likely now chewed up and in the bottom of the pan.

I'd theorize that the damaged spark plug was cause by a dropped valve thanks to the bolt rattling around in your valve train when you fired up the engine.

If I were you I'd do the following:
1. Pull the head and see what could have caused the spark plug damage.

2. Pull the pan and find the missing bolt. Take a good look at the drained oil for metal flakes and even cut apart the oil filter.

3. From below the engine, look at the cylinder walls and check for any scarring.

If you're lucky and you find the bolt largely intact, you may get away with just replacing the cylinder head. However, I suspect not only cylinder head damage, but also damage to the piston which may or may not necessitate a rebuild.
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  #12  
Old 04-13-2011, 11:33 AM
jandr1cj jandr1cj is offline
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Default Re: Dropped Something in Motor

Just an FYI, I have found my lost bolt in one piece! It was dropped through the intake and hung up in the valve, dangling straight down where you could see it through the spark plug hole. Did a leak test and found out that it is leaking 80-90%. Going to pull valve and head off to see what kind of damage was done. I am thinking (and hoping) that the damage is only done to the valve and will have to machine it.
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  #13  
Old 04-13-2011, 11:44 AM
DangerRanger2000 DangerRanger2000 is offline
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Default Re: Dropped Something in Motor

Quote:
Originally Posted by jandr1cj View Post
Just an FYI, I have found my lost bolt in one piece! It was dropped through the intake and hung up in the valve, dangling straight down where you could see it through the spark plug hole. Did a leak test and found out that it is leaking 80-90%. Going to pull valve and head off to see what kind of damage was done. I am thinking (and hoping) that the damage is only done to the valve and will have to machine it.
Yeah you probably bent a valve which is not good at all
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  #14  
Old 04-25-2011, 11:45 AM
jandr1cj jandr1cj is offline
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Default Re: Dropped Something in Motor

Alright guys! I have another damn problem. Turns out the Valve was bent. I had a new valve put in and the head surfaced (cost = $70... Pays to know people). Put it all back together, runs but I have a DEAD MISS on the cylinder. WTF???
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  #15  
Old 04-26-2011, 07:30 AM
Badmotorfinger1 Badmotorfinger1 is offline
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Default Re: Dropped Something in Motor

Quote:
Originally Posted by jandr1cj View Post
Alright guys! I have another damn problem. Turns out the Valve was bent. I had a new valve put in and the head surfaced (cost = $70... Pays to know people). Put it all back together, runs but I have a DEAD MISS on the cylinder. WTF???
Check to make sure you snapped the spark plug wire on both ends correctly or better yet, check to see if you have a spark at the offending cylinder.
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