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Old 09-28-2015, 07:10 PM
 
3,046 posts, read 2,639,969 times
Reputation: 2122

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Quote:
Originally Posted by wpme View Post
Years ago we had a Suburban come in with a rod knock, it drove ok, and it really did not sound all that bad, and customer said it had been making that noise for over a year. When I dropped the pan I was in utter shock, the rod journal was worn down to where it was less than 1" diameter, and the rods were hammered out to about 3" diameter. I've never seen a 4,5, or 6 cylinder engine do that, but yes a V8 can run a long time with a rod knock. Of course, your mileage may vary.......
Also your Suburban had a cast iron block and possible cast iron heads. Honda your talking aluminum everything.
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Old 09-28-2015, 11:35 PM
 
Location: Northeast Tennessee
7,303 posts, read 22,754,219 times
Reputation: 5468
lol, I didn't know the post was so old, I was just adding to everyone elses post, lol. Well I wonder if the Accord is still going?

Yeah with my Caddy, I am not sure what it is. Just odd that it would be a rod knock at only 60,000 miles driven by a granny unless my mechanic decided to take it on a spirited drive and damaged it? I just read those 4.9 was bad for main bearing thump, not sure what that is, or how bad. I will drive it awhile longer and probably sell. I have a new car, this is a 2nd car and maybe replacing I with a 1993 Buick Park Avenue with the 3800 V6. I had one before, it was a great car.
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Old 09-30-2015, 09:40 AM
 
Location: Billings, MT
9,008 posts, read 7,093,644 times
Reputation: 12460
Another question to which the only answer is "It depends..."
Many years ago, when I was a teenager, I had a 1934 Chevy that had a rod knock. since there was a readily available newer engine that would bolt right in, and it was only about a 2 hour job on that car, my friends and I decided we would blow that old engine. We ran that thing hard, and it would not fail. Finally, we took it to the top of a long, steep hill and started down. At about 50 MPH, we stuffed it into second gear and dropped the clutch. When it slowed to about 35, we stuffed it into low gear and again dropped the clutch.
That engine made horrible noises, and belched out a cloud of blue smoke as it sucked oil past the valve guides. Then it settled down and continued to run smoothly, clattering the same as before.
We gave up and changed the engine without ever having the satisfaction of seeing it explode.
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Old 03-07-2017, 08:24 PM
 
1 posts, read 754 times
Reputation: 10
I know this may seem bad but hay ....I wanted to know how many miles my 09 rav 4 will go if seal up liguid glass metalic was put in the oil..even tho that's not what it for ...thank u
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Old 03-07-2017, 10:33 PM
 
Location: On the road
2,646 posts, read 1,830,147 times
Reputation: 2866
Quote:
Originally Posted by badgirl40 View Post
I know this may seem bad but hay ....I wanted to know how many miles my 09 rav 4 will go if seal up liguid glass metalic was put in the oil..even tho that's not what it for ...thank u
Well, I suspect you're about to find out.
My guess is, further than you think, but not far enough.
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Old 03-08-2017, 06:52 AM
 
2,269 posts, read 1,223,779 times
Reputation: 4504
Quote:
Originally Posted by badgirl40 View Post
I know this may seem bad but hay ....I wanted to know how many miles my 09 rav 4 will go if seal up liguid glass metalic was put in the oil..even tho that's not what it for ...thank u
How much was put in? You may get lucky by changing the oil before it has circulated through the system.
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Old 03-09-2017, 08:01 AM
 
1,697 posts, read 2,016,553 times
Reputation: 2592
[quote=jambo101;22887683]Make sure it is indeed a rod knock, i remember buying a nice Ford Econoline party van from this guy for very cheap,he said the rod was knocking and it needed a new motor, turned out to be just the U joints needed to be replaced.

Wow! That was a p-poor job of diagnosis! Not remotely the same symptom.

Don in Austin
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Old 03-09-2017, 08:03 AM
 
1,697 posts, read 2,016,553 times
Reputation: 2592
Quote:
Originally Posted by allison7786 View Post
I have a '96 Ford Taurus with 149,000 that i bought for $300
Because they said the engine knocked but only whenn1st starting
and becuase thw gasket was going, and that IT WAS FIXABLE.
Well come to find out its the engine. When i test drove it, it was
PERFECT...but now that i bought it, its like a whole diff. Car
the car from MANY people looking and listening to it, has
ROD KNOCK. Now 1 of my mechanic buddies said i COULD
do an oil change with some 20-50 oil and throw some Lucus
into it also to help quiet and maybe help it last a little longer.
Does that sound right?? And would it help?.
It does not sound right. Wishful thinking all the way.

Don in Austin
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Old 03-09-2017, 08:28 AM
 
659 posts, read 1,074,231 times
Reputation: 968
Quote:
Originally Posted by badgirl40 View Post
I know this may seem bad but hay ....I wanted to know how many miles my 09 rav 4 will go if seal up liguid glass metalic was put in the oil..even tho that's not what it for ...thank u
Not sure how many miles, but you'll probably gain about 30 horsepower if I had to guess.
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Old 03-09-2017, 12:48 PM
 
573 posts, read 233,813 times
Reputation: 363
Quote:
Originally Posted by Redraven View Post
Another question to which the only answer is "It depends..."
Many years ago, when I was a teenager, I had a 1934 Chevy that had a rod knock. since there was a readily available newer engine that would bolt right in, and it was only about a 2 hour job on that car, my friends and I decided we would blow that old engine. We ran that thing hard, and it would not fail. Finally, we took it to the top of a long, steep hill and started down. At about 50 MPH, we stuffed it into second gear and dropped the clutch. When it slowed to about 35, we stuffed it into low gear and again dropped the clutch.
That engine made horrible noises, and belched out a cloud of blue smoke as it sucked oil past the valve guides. Then it settled down and continued to run smoothly, clattering the same as before.
We gave up and changed the engine without ever having the satisfaction of seeing it explode.
Now if ya had ran it with no oil in it...
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