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Old 06-24-2010, 12:44 PM   #1
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Engine Builders, I have a Resurrection!

ok, heres the story.

My son saved up and bought a car to restore with me, picking it up Saturday (june 26 2010) and the engine is locked up tight. I know the major causes are over-heating from running out of oil, no coolent, etc... But this is different. This one sat, in a garage for a little over 20 years. Its a 1974 Mustang II with the original V6, 99,000 miles, ran great when parked back in the 80's. Being that it has been in the garage, it is in AWESOME shape. The doors don't drop when you open them, the interior is about brand new, only surface rust from teenagers sanding and spraying it with cheap primer. It was an old ladys car before them and they never took it out of the garage!!! (We got 'er for $500) Even has all of the original trim, grill, lights, moldings, emblems, etc... My son is 13 now, we have a little over two years to get it all done.

I've re-built a few car engines (350's/400sb) a Chrysler 4 cyl. and probably over 100 small engines (used to be my career)... Im confident I can show him what to do. My question is for your experiences or opinions on freeing up the locked V6 to breath a new life into it. I've done it to several 4 wheelers, motorcycles, mowers, etc... I soak the pistons with PB Blaster top and bottom, pull the valve covers and the oil pan and soak the rod bearings and crank bearings, then pull the heads and tap the top of the pistons with a wooden hammer handle in the firing order, one at a time until they start to move freely. Once free'd up to spin over with a breaker bar I flush it inside and out with Kerosene several times until no more rust comes out in the K1. Squirt Lucas into all of the bearings, rods, valve guides & rocker arms, put 'er back together, fill with oil and whalla! Run it for five minutes, drain and re-fill oil. If it still a little rusty, drain it again!

Has anyone had experience with this? Have any suggestions? This V6 will be the biggest I've brought back to life after being siezed. Before this, my biggest was a Twin Cylinder (23 Horse) Kohler from a huge golf course mower.

Thanks for your thoughts! I plan to get a lot of pics along the way for my sons scrap book and can share the progress with you guys & gals...














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Old 06-24-2010, 01:14 PM   #2
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I think I'd hit the salvage yards for a 302 and trans.Definitely a good starter platform.

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Old 06-24-2010, 01:17 PM   #3
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I use a hydraulic pump set up to free tractor engines. After soaking like you mentioned I will apply pressure with a hydraulic power unit and slowly increase pressure. I always start low wait a day if the gauge goes down its loose if not increase pressure wait another day and so on. If the cylinders leak it don't work at all. I have had that happen on only one really old JD B.
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Old 06-24-2010, 01:26 PM   #4
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V6 might not be worth saving, like Baja said, get a used 302 and AOD or T5 Trans and bolt it in. Cost the same to rebuild the V6 as it would to do a 302. If you want to save the V6, take the heads and intake off, soak it real good overnight with a penatrating oil, then turn the crank with a breaker bar. A little extra tear down now will save you a ton of headaches later. Just my 2 cents. Good luck with the build.
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Old 06-24-2010, 01:39 PM   #5
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Thanks! I like the 302 idea.

For my teenager, I want to see if I can get the V6 to crank and fire but like mentioned, not put to much $$ into it. If it is starting to seem like to much work, we'll start shopping around for another engine. Great ideas so far!
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Old 06-24-2010, 02:41 PM   #6
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That car is AWESOME!

It's a disservice not giving her a 302.

Man that thing is cool. I wish I could have a REAL muscle car like that to build.
Good luck on the build. Post some pics up of the mods when you get the project rolling. I'd love to watch.
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Old 06-24-2010, 02:47 PM   #7
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this may be a stupid question, but i'll ask anyway. are you sure the engine is seized? my brother-in-law just picked up a '73 mustang II 6 cyl auto for $500. the guy that sold it to him said that the engine was seized and shot. he bought it for a project car. the "seized" engine wasn't seized at all, it just needed a new starter. $100 later, it runs like a champ. again, i know nothing about these, but you situation sounds similar to my brother-in-law's.
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Old 06-24-2010, 03:35 PM   #8
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oh yeah, we'll try to keep up on the pics. I started a site, then I will copy things from there to here. It is here

My thought on the engine being siezed is the guy telling me he put a breaker bar on the crank and could not move it at all.

If you guys are looking for barn finds, keep up on Craigslist. It amaizing the shtuff people have out there!
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Old 06-24-2010, 03:38 PM   #9
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looks like a pretty cool project. your kids pretty lucky to have a pops as cool as you.
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Old 06-24-2010, 03:42 PM   #10
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Thanks! I've been arguing with him for two years about saving his money for a car. He kept wanting to pull it out for video games or this or that... I was persistant to tell him NO!. And now, he is starting to appreciate it!


oh, and to "therunner", thats a good idea to tear the heads off. I had planned to shoot some into the plug holes and pull the valve covers but you make some good points. I can really get into 'er a lot better that way without leaving any rusty oil in there anywhere. Can't wait for Saturday! I don't know which one of us (me or the kid) is more excited to start working on 'er!
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Old 06-24-2010, 03:43 PM   #11
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i like what you're doing, i'd say go ahead with the effort. it will be a good learning experience for you and your kid. you can start by just spring the cylinders down, soak them a few times and try to turn it by hand. the rings probably just have a ridge of rust on them. but be sure not to break a ring by forcing it.

resurrect that engine, then if it doesn't work, go for the swap.
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Old 06-24-2010, 05:39 PM   #12
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WOW.... 75 Mach1 was my first car and it had that same V6... Like some of the others said.... find ya a 302 an dput in there.... Don't know if it was a problem with that V6, but I broke 3 distributors.... and the 302 would be more fun.
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Old 06-24-2010, 08:28 PM   #13
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Can't wait for Saturday! I don't know which one of us (me or the kid) is more excited to start working on 'er!
I think you left out a few excited people. I would be there in a minute to help out. What you have there with you and your son is priceless.
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Old 06-25-2010, 07:21 AM   #14
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Originally Posted by nick50471 View Post
I think you left out a few excited people. I would be there in a minute to help out. What you have there with you and your son is priceless.

I agree!.... My father and I spent countless hours doing a frame up on a 72 Vette....
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Old 06-25-2010, 07:40 AM   #15
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72... SWEET! I love the 71-73 Vettes
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Old 06-25-2010, 01:58 PM   #16
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just got one of the two manuals we ordered, arrived in the mail today. Not sure if its our Haynes or Chiltons but we ordered both of 'em for the mustang. Glad we got at least one before the weekend incase we have anything to reference. The manuals are priceless for rebuilding and/or maintaining your own vehicles. Was'nt even a week after I got the 94 YJ I picked up the Haynes manual. Even something simple like "how much oil do I put in it?" its all in the book!



A lot of techs compare Chiltons and Haynes manuals. I'll tell you the straight up about both of them. The Haynes manual is the tech (shop) manual. If your a tech, you want the Haynes. More nitty gritty and less fluff.

On the other hand, if your just getting into the technical side of things, you want the Chiltons. Sometimes there is not as much detail as the Haynes but it makes things simple with a lot of full illustrations, diagrams and step by step instructions.

In a nutshell, the Haynes will have more specs and a small black and white photo. The Chiltons will have less specs and a half page color picture.
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Old 06-28-2010, 03:57 PM   #17
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brought her home over the weekend and started wrenching. Got all the plugs out, belts off and radiator drained and out of the way. Also got PB blaster and some ZMAX microlube down into the cylinders. Oil and Anti-Freeze both look great, were hoping for the best! We also needed to free up the throttle linkages and start stripping the old air conditioning unit out.

We took a ton of pictures, you can follow along here; http://www.mycobra2.com/

Here are a few of the weekend highlights,
-Chris







Be sure to check out the site for more progress and detailed descriptions!
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Old 06-28-2010, 04:32 PM   #18
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sweet

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