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Old 10-23-2013, 01:13 PM   #1
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Lower rod knock

Have a lower rod knock in my engine. Was wondering if I could just buy a new block only a few hundred and transfer everything from my existing engine or would that not work. I'm not the most mechanically inclined person. I'd have a friend do the work he's a mechanic. I can find a block with internals close bye me for cheap.
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Old 10-23-2013, 01:25 PM   #2
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Mines started to do the same but only when the engine warms up tho. It doesn't run hot or anything
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Old 10-24-2013, 05:13 AM   #3
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If it jus started knocking you can just put new bearings in it. Just check the crank and rods out and make sure their not scarred up.
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Old 10-24-2013, 08:02 AM   #4
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What bearings? Please enlighten me more
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Old 10-24-2013, 10:12 AM   #5
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Rod bearings. The problem isn't your block.
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Old 10-24-2013, 10:46 AM   #6
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Do I have to rebuild the motor or is it something that can be done with a drop of the pan
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Old 10-24-2013, 10:12 PM   #7
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If you have to drop the pan you will have to drop the k member so you might as well pull the motor. I'm not sure though. I would say if its a rod bearing i would rebuild it. How many miles on your motor?
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Old 10-24-2013, 11:10 PM   #8
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This poor thing had 127k on it
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Old 10-25-2013, 06:16 AM   #9
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You can lolsten up the k member and drop it down a little bit and get the pan off then just start at the front and work your way back taking 1 cap off at a time and use a pick to roll the bearing out and new one in. It's a long process but if you don't wanna drop the cash on a complete rebuild it's an option to keep in mind
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Old 10-25-2013, 12:49 PM   #10
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Rod knock=rebuild. No two ways about it. Best bet is to find a good PI pullout from a yard guaranteed to run and just swap them out. 02-05 Explorer motors are your best option but also the priciest.
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Old 10-25-2013, 01:18 PM   #11
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I'm leaning towards the mark8 sorry for the thread jack
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Old 10-25-2013, 02:11 PM   #12
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Mark VIII 4V swap is also a good one but will be more costly than a simple PI pullout for $400-$900. The PI is totally plug and play, the Mark VIII will cost double that and need some modifications. Its not bad at all, like 90% plug and play but if he just needs to get his car back up and running a PI motor will be the fastest way to get there.

I've been through the whole car sitting while you rebuild the engine to be a beast and the car usually sits for a year or more if you have a full time job and a family. At least mine did... things come up... dog has to go to the vet for a $800 treatment, you have to pay off a hitman... you know life.

I will never let a car sit like that again unless its in a climate controlled garage and even then...
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Old 10-29-2013, 02:15 PM   #13
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I thought the 4.6 was a rock hard solid motor? 130k for the rod to knock sucks.
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Old 10-29-2013, 02:49 PM   #14
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Quote:
Originally Posted by V6 stang View Post
I thought the 4.6 was a rock hard solid motor? 130k for the rod to knock sucks.
It can be, hence why it was used in the crown Vic for police, taxi, etc...etc...

But it has its limits just like any other engine. That being said, they do see a lot more abuse from our crowd.
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Old 10-29-2013, 03:00 PM   #15
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Quote:
Originally Posted by Roguestang View Post

It can be, hence why it was used in the crown Vic for police, taxi, etc...etc...

But it has its limits just like any other engine. That being said, they do see a lot more abuse from our crowd.
Seems like they built these motors as work horses huh? (Pun intended)
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Old 10-29-2013, 03:54 PM   #16
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Lulz! (Ba-dum-tish!!)
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Old 10-30-2013, 08:31 AM   #17
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Originally Posted by Roguestang View Post
It can be, hence why it was used in the crown Vic for police, taxi, etc...etc...

But it has its limits just like any other engine. That being said, they do see a lot more abuse from our crowd.
A 4.6L out of a crown vic taxi or cop car will be beat to **** more than a Mustang one will be. The best 4.6L is definitely the WAP blocked one out of a 02-05 Exploder and then one out of an old person owned Vic. And even the old person ones... going 5-10 miles each way to grocery store/lodge/church a few times a week is VERY hard on an engine, even a low mileage one.
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Old 10-30-2013, 02:07 PM   #18
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Weird. I had the image of these motors being rock hard and only in extreme cases would they die early.
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Old 10-30-2013, 10:52 PM   #19
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Quote:
Originally Posted by scottydsntknow View Post

A 4.6L out of a crown vic taxi or cop car will be beat to **** more than a Mustang one will be. The best 4.6L is definitely the WAP blocked one out of a 02-05 Exploder and then one out of an old person owned Vic. And even the old person ones... going 5-10 miles each way to grocery store/lodge/church a few times a week is VERY hard on an engine, even a low mileage one.
Yeah, you basically reiterated what I said. Just with a lot more words lol
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