Bought junkyard engine, this is what I found when I opened it up

[376shovel]

Bought a verfied 2005 Lincoln aviator engine with supposedly 104k on it. When I cracked it open this is what I found: https://youtu.be/Xbo29Y_MAzk

Timing chain loose as a goose. Also the engine looks like the oil was not changed regularly.

Yhis is my first Ford DOHC engine. What parts should I aim to replace, and how can I clean it besides taking it to a machine shop? Brake clean does nothing.

I'm assuming at this point I will need an oil pump, and full timing set? Going for a new cam cover gasket set as well. At least I got a decent deal on the motor with no core charge...

[Turbov6Bryan]

Link does not work for video

[376shovel]

https://youtu.be/Xbo29Y_MAzk

[mattdohc]

wow now thats a loose chain!!!

[Stugotz]

So imagine this. You "clean" it up the best you can without tearing it down completely. You dress it, install it, connect it all up and fire it up for the first time. It either smokes or knocks or is otherwise screwed up. Now you have to unconnected it, uninstall it, undress it and tear it down the right way like you should have done in the first place. Ask me how I know. it's already in the garage on a stand and partially dissembled. At the very least strip it and send the block and pistons out to be cleaned and checked. If the measurements are good you might be able to just hone it and do rings and bearings. If it looks like crap inside you have to man. You will thank me later.

[Turbov6Bryan]

Doesn't your original engine just have a tick, or slight knock?

Is it getting worse?

Is it possible the tick is just a lifter tappet?


Can you ask the junk yard for a different engine?

[Zack]

Chains will get slack like that if the engine was rotated counterclockwise. (For torque converter bolt removal) spin it clockwise and the slack disappears

[Joe Walsh]

I've heard of forged engine internals....but that engine is solid GOLD!!!

[376shovel]

So imagine this. You "clean" it up the best you can without tearing it down completely. You dress it, install it, connect it all up and fire it up for the first time. It either smokes or knocks or is otherwise screwed up. Now you have to unconnected it, uninstall it, undress it and tear it down the right way like you should have done in the first place. Ask me how I know. it's already in the garage on a stand and partially dissembled. At the very least strip it and send the block and pistons out to be cleaned and checked. If the measurements are good you might be able to just hone it and do rings and bearings. If it looks like crap inside you have to man. You will thank me later.


Yeah that is on the table. Right now I am going to be doing a leakdown on this engine and go from there.

[376shovel]

Doesn't your original engine just have a tick, or slight knock?

Is it getting worse?

Is it possible the tick is just a lifter tappet?


Can you ask the junk yard for a different engine?


I will be calling the junkyard but they only had the one 2005 motor. My engine isn't getting worse, but it's pretty damn annoying and it is burning oil. I hear the tick the worst on the exhaust port(s) of #8

[a_d_a_m]

Chains will get slack like that if the engine was rotated counterclockwise. (For torque converter bolt removal) spin it clockwise and the slack disappears To go along with that thought......if there was that much slack while the motor was running, wouldn't the guides/arms also be trashed? They don't look to be eaten through...hell, my car at 101k had worse guides than what I could see in that video.

[376shovel]

Who sells an inexpensive engine rebuild kit for this motor? Which timing set should I go with? Any measurable differences between the Ford set and the cloyes kit? The for kit is almost $200 more

[RubberCtyRauder]

there is a parts list from Zack in the Shop talk forum at the top, stickied post

[376shovel]

Looks like it's easier just to buy the Ford kit vs piecing it together like that.

Anyone use the cloyes set?

[FordNut]

Who sells an inexpensive engine rebuild kit for this motor?

There is no such thing. Working on mod motors is like big block Fords. Everything is expensive.

[376shovel]

FYSA anyone looking to buy the cloyes set: I bought the cloyes set and it came with plastic body tensioners. I ordered the metal tensioners which I feel much better with.

[UncleLar]

Listen To Zack,he KNOWS whereof he speaks.

[376shovel]

Listen To Zack,he KNOWS whereof he speaks.

What are you referring to exactly?

[lifespeed]

Junkyard engines give me the heeby jeebies.

[UncleLar]

What are you referring to exactly?

If you don't know who Zack is you really should find out,do a search and see if you can find his posts.He's been on mm.net a month longer than I have and I seriously doubt ANYONE knows MM's better than him or built more good ones,fast ones,or repaired more of them then he has.
He's the ONLY guy I'd trust with my MM engine.

[376shovel]

If you don't know who Zack is you really should find out,do a search and see if you can find his posts.He's been on mm.net a month longer than I have and I seriously doubt ANYONE knows MM's better than him or built more good ones,fast ones,or repaired more of them then he has.
He's the ONLY guy I'd trust with my MM engine.

I don't know him personally, but I've seen his posts for sure. I can see he's knowledgeable, I'm just asking what post was being referred to that I should be listening to. In this thread all he said was about the slack and rotating the engine to remove it. I guess I'm just not following what that has to do with my posts since then at all.

[lifespeed]

FYSA anyone looking to buy the cloyes set: I bought the cloyes set and it came with plastic body tensioners. I ordered the metal tensioners which I feel much better with.

Good move, those plastic tensioners failed on me. Their replacement with cast iron (FR cam timing kit) and a resulting loose bolt in the cam sprocket is what caused me to rebuild the motor. Completely unnecessary, although I did want a more powerful engine.

The guys at Livernois claim they have had a few failures of the cam sprockets in the Ford Racing kit, so they buy the FR kit and use Cloyes sprockets. And the Cloyes are friendly to degree.

[376shovel]

Junkyard engines give me the heeby jeebies.

I've bought and used 2 as the basis of 10 second Street car builds. Really just depends on the motor. This one I wasn't able to open up before I bought it which was a risk I was willing to take to get a motor with the DC heads

[376shovel]

Just got done with a leakdown test. The motor needs to be rebuilt. Check out the results. Probably needs a valve job. Time to tear it all down. Sigh

[lifespeed]

Just got done with a leakdown test. The motor needs to be rebuilt. Check out the results. Probably needs a valve job. Time to tear it all down. Sigh

At least you didn't blindly put money in it and bolt it in your car.

[Turbov6Bryan]

Just got done with a leakdown test. The motor needs to be rebuilt. Check out the results. Probably needs a valve job. Time to tear it all down. Sigh

I did a compression test on my car the other day, I'm going to do a cylinder leak down test. I've done them in the past, usually knock out the carbon and everything is tight on older cars..

Where do you get the percentage blowing past the rings?
How are you seeing air past the rings into the crankcase?

Just wondering Willing to learn lol

[376shovel]

At least you didn't blindly put money in it and bolt it in your car.

As long as it was healthy I was going to put 99 Cobra intake cams in, timing set and call it done. Not now.

[376shovel]

After 4k my current engine that is in the car burned 3.25 quarts of oil. No external leaks. I hate Ford.

[Mike D Mechanic]

being a hater wont help bring a good resolve to your issue. I never take an anything out of the boneyard that I don't automatically assume it must be rebuilt. Ford builds good stuff I think, get great service from all my fords. use to have GM's got tired of working on all the time! positive attitude will help. I bought a 4.6 DOHC engine that was suppose to have a better than average chance of being a good core engine and actually turned out to be total losing gamble. not fords fault the engine was mistreated and or non maintained and don't complain that I ended up with total pig of a deal just saying

[Chevyguy]

Problem with Aviator engines is that they were in Aviators. Loaded up with screaming brats, mom never checking the oil level, dad towing his ATV trailer.....All in a truck 400 lbs heavier than a Marauder

[376shovel]

being a hater wont help bring a good resolve to your issue. I never take an anything out of the boneyard that I don't automatically assume it must be rebuilt. Ford builds good stuff I think, get great service from all my fords. use to have GM's got tired of working on all the time! positive attitude will help. I bought a 4.6 DOHC engine that was suppose to have a better than average chance of being a good core engine and actually turned out to be total losing gamble. not fords fault the engine was mistreated and or non maintained and don't complain that I ended up with total pig of a deal just saying



Yeah, I'm mostly kidding. I do hate the premium price on rebuilding a basically stock engine though. In order to justify the price I'm going to be forced to make little upgrades or "while I'm in there"s. Daily driver so I can't go crazy.

[376shovel]

Talked to the junkyard and they are turning out to be stand up dudes. The owner is going to refund $350 of my money. Makes repairing this engine a bit more palatable.