08-23-2014, 02:34 PM | #41 |
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Re: Tell me this noise isn't what I'm afraid it is.
Some progress! I decided to try pulling the plugs one at a time again and see if I could hear the knock through the very loud noise of the air rushing in and out of the plug holes. It about made me deaf but I could barely perceive the knock except on cylinders 1 and 5 that are both hooked onto the same offset on the crankshaft. That's at least a start to have narrowed it down to one of those two.
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08-23-2014, 02:38 PM | #42 |
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Re: Tell me this noise isn't what I'm afraid it is.
I didn't have poor engine performance except when I pulled the choke out enough to cause it when I was checking to see if it was just premature detonation which, along with larger jets, can be and is reduced by enriching the mixture. Of course, when none of that worked I realized it was something else that wasn't solved by any of that. Using high octane fuel can also reduce premature detonation. Tried that too without benefit.
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08-23-2014, 02:45 PM | #43 |
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Re: Tell me this noise isn't what I'm afraid it is.
So what's the noise like when you disconnect both wires to plugs 1 & 5? Does it sound any different than when you disconnect 2 & 6 or 3 & 7 or 4 & 8? Cpmpression seems kinda low on all cylinders.
Jack E/NJ |
08-23-2014, 02:47 PM | #44 |
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Re: Tell me this noise isn't what I'm afraid it is.
The compression numbers seem a bit low, but as they are all similar it is probably something to do with the test technique rather than all 8 cylinders having a problem.
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08-23-2014, 03:01 PM | #45 |
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Re: Tell me this noise isn't what I'm afraid it is.
Use a long screw driver or a metal rod to your ear and check each cylinder for noise at idle. If you have a stethoscope, so much the better. If you locate the offending cylinder, you will know it is a bearing. We had one of those in our shop a couple of years ago caused by an improper sleeved engine which allowed coolant into the oil pan which, in turn, shucked the rod bearing for that cylinder. Pulling the engine is always the best way to check lower end problems, and to see if the crank is scored. A knock may be as simple as a bad fan bearing. Pulling the choke out to change the noise is odd. It could be a broken valve spring which you can check by pulling the intake manifold. They can be hard to see, so look carefully. Let us know what you find.
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08-23-2014, 03:04 PM | #46 |
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Re: Tell me this noise isn't what I'm afraid it is.
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08-23-2014, 03:06 PM | #47 |
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Re: Tell me this noise isn't what I'm afraid it is.
A good point well made.
I'm not used to making adjustments for high altitude. Mart. |
08-23-2014, 03:08 PM | #48 | |
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Re: Tell me this noise isn't what I'm afraid it is.
Quote:
What does it all mean?
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08-23-2014, 03:10 PM | #49 |
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Re: Tell me this noise isn't what I'm afraid it is.
99% sure it means you need to pull the motor and investigate the crank and bearings.
Sorry. Mart. |
08-23-2014, 03:13 PM | #50 | |
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Re: Tell me this noise isn't what I'm afraid it is.
Quote:
It works great for premature detonation which I thought it was initially.
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08-23-2014, 03:15 PM | #51 |
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Re: Tell me this noise isn't what I'm afraid it is.
Your done.Time to perform surgery on that flattie.This is some internal engine failure not going to get better.Not a fun job with that particular model but you will overcome and report back as you usually do.Its not your first rodeo.
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08-23-2014, 03:16 PM | #52 | |
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Re: Tell me this noise isn't what I'm afraid it is.
Quote:
If this engine was "rebuilt" by the same guy that "rebuilt" it in the past I'd strongly advise you have ALL of the rods and journals checked by a professional.
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08-23-2014, 03:33 PM | #53 |
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Re: Tell me this noise isn't what I'm afraid it is.
It WAS kind'a pretty, though! Doc Roger as I remember. DD
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08-24-2014, 12:41 PM | #54 |
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Re: Tell me this noise isn't what I'm afraid it is.
By the sound, I think you will have the engine out of the chassis before it is fixed. Sorry for such a negative opinion. Now, prove me wrong and we will both be happy.
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08-24-2014, 12:55 PM | #55 | |
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Re: Tell me this noise isn't what I'm afraid it is.
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I wouldn't dream of running that engine until the oil passages and sludge traps had been cleaned out, in addition to whatever the crank/rods need. Pulling the engine is not that big a deal, you can have it out and on the stand in a day. I always have a lot of inertia, trying to figure a way around it, but in the end it's better to just bite the bullet.
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08-24-2014, 01:18 PM | #56 | |
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Re: Tell me this noise isn't what I'm afraid it is.
Quote:
At this point my "inertia" that you speak of is greater than my desire to drive (and you know how much I love to drive). So, "Old Henry", will be getting a long deserved vacation from service unless Old Chuckles up the street has some confidence that he and I can fix this problem without removing the engine. That was just so painful the one time I've done it that I won't be doing that again for the foreseeable future. And I don't have a stand nor any knowledge of what to do with the inside of the engine even if I did. I'd have to haul it or send it to someone. . . . Just too much to face right now. Thanks again for everyone's help and advice. It has been very instructive and supportive.
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08-24-2014, 05:43 PM | #57 |
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Re: Tell me this noise isn't what I'm afraid it is.
Professor,
I know you live up in Utah but don't know how rural your town is. If you have Fordbarners in your area, now would be the time for them to rally to your support and arrive to help remove the engine a see what the problem is. One day of work and you might have an answer. If you are a member of the EFV8 club, maybe there is a club that some members could travel over for a day. Now is the time to help a fellow Barner John |
08-24-2014, 05:49 PM | #58 |
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Re: Tell me this noise isn't what I'm afraid it is.
What a bummer Henry, both our cars need surgery ,but it's no drama,just get the engine out and get into it,at least you are lucky living in the USA and can get parts easily,
The parts for the 33 engine have arrived at my boys place( thanks Fred ), And The repairs will be no problem. Lawrie |
08-24-2014, 06:41 PM | #59 |
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Re: Tell me this noise isn't what I'm afraid it is.
Old Henry, before you go to far pull the pan and those two rods, mic the crank, you might just get away with polishing the throw and installing new bearings
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08-24-2014, 07:13 PM | #60 |
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Re: Tell me this noise isn't what I'm afraid it is.
It sounds like its too late for a polish . With that much noise Its time to remove and have a closer look. May be someone close by can give you a hand. Wish I was there we have that puppy out and tore down in no time.
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