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Checking out a junk yard engine-what to look for

Discussion in 'The Hokey Ass Message Board' started by Comet, Nov 23, 2006.

  1. So tomorrow I'm picking up an engine for my '30 Model A. What I know about it, it was still in the car (pulled today), the car hasn't been licensed since 1978, the car has had a hood on it, but the motor has lots of surface rust. It spins freely and the water was drained. I plan to take it apart and get it checked, but what else should I be on the look out for on an old motor? (1958)
     
  2. bills model a
    Joined: Aug 27, 2004
    Posts: 305

    bills model a
    BANNED

    Bring a battery and some gas and try to start it and then if it sounds good you still wont know till you pull it apart
     
  3. Always good to look, but if the motor is original to the car and the car is a stocker, check the odometer.. if it turns over, it will run, but sitting that long a complete teardown, hot-tank and run brushes through the oil passages won't hurt. As long as it's apart, a new oil pump and timing set along with the gaskets is a good idea. And measure everything.

    Or just throw it in and run it, change the oil 4 or 5 times the first 1000 miles or so, and when it starts to stay pretty clean, live with it.
     
  4. guiseart
    Joined: Apr 7, 2005
    Posts: 3,871

    guiseart
    Member

    I've found that if you hit the engine-shops first, you might have better luck, by phone first then go see em. "StreetRodders" swap stock or even modified engines (perfectly good) for bigger shit all the time, some engine shops have leftovers sitting around they have no use for. Beats ones that have been outdoor winter homes for vermin.

    You could also check the classifieds in here... a good mill can be built for very little if you get all the parts from HAMBers. :)
     
  5. Guiseart, this is a 392 Hemi and I've been scouring all the sources. But engine shops likely wouldn't let this one go.
    Thanks guys for the input. The odometer check is a good one I forgot about. I feel pretty good about this one and the guy I'm buying it from seems like a straight shooter.
     
  6. HEATHEN
    Joined: Nov 22, 2005
    Posts: 8,909

    HEATHEN
    Member
    from SIDNEY, NY

    If it's been sitting that long and still turns over freely, call it a good prospect and don't run it without a teardown. Is it worth ruining parts that aren't ruined yet by insisting on starting it first? One of my friends wiped out the crank and cam in a 330 DeSoto hemi by insisting on hearing it run before he pulled it out--the 40 years' worth of garbage in the oil pan sucked into the oil pump pickup and starved it for oil.
     

  7. The early hemi's had high quality castings, if this engine is coming out of the numbers matching car then I would be suprised if the block and head castings have never been machined, and if the hood was protecting it from the elements it's probably a really solid start.
     
  8. guiseart
    Joined: Apr 7, 2005
    Posts: 3,871

    guiseart
    Member

    well shit, I didn't know you were looking for a HEMI... I just thought you were looking for a replacement. Junkyards aint gonna have no HEMI's, at least not in my neck of the woods.
     
  9. George
    Joined: Jan 1, 2005
    Posts: 7,863

    George
    Member

    Hemi! Check for cracking near the freeze plugs. If there is no cracks there & it turns over it's probably a good core. Don't try to start it w/o at least an oil change & running the oil pump for a while.
     
  10. 40Standard
    Joined: Jul 30, 2005
    Posts: 5,970

    40Standard
    Member
    from Indy

    it doesn't have to be in the car to start the engine. i've started many laying on the ground
     
  11. 49coupe
    Joined: Nov 4, 2005
    Posts: 569

    49coupe
    Member

    Even if it turns over, I wouldn't fire it until I'd at least check the overall condition of the engine. I've seen a few good engines ruined because the oil galleries were plugged or the oil pump stopped working.

    I'd pull the valve cover and the pan at a minimum. If everything looks clean, change the oil, plugs, points, etc. and give it a try while having a manual oil pressure guage hooked up. If its not clean inside, I'd do as has been suggested and hot tank the heads, clean the galleries and put a fresh gasket set on it. I wouldn't expect miracles from an engine that has been sitting for 50 year old engine that has been sitting for almost 30 years.

    The flathead in my '50 Ford had been sitting for 25 years when I got the car. I went through everything on top of the motor, pulled the pan and put in some Lucas oil treatment. She smoked a little and after a few miles she ran better. However, even now, two years later, she runs OK, but she's not a fresh rebuild so I treat her gently. I know that if I drove the car hard for any length time, I'd blow something. Since this is a very desireable engine, I'd definately go through it first myself. This ain't no scrap yard 350 or 302.
     
  12. George
    Joined: Jan 1, 2005
    Posts: 7,863

    George
    Member

    Hemis that sit like that usually have stuck pistons, suprising this one isn't. A little mystery oil, or something simular product. in the cylenders. Plus running up the oil pump, but the safest thing would be to do the overhaul, but that's big money.
     
  13. long island vic
    Joined: Feb 26, 2002
    Posts: 2,193

    long island vic
    Member

    boy are you going too be surprised when you go too get it built.....hope your handy with money
     
  14. 4woody
    Joined: Sep 4, 2002
    Posts: 2,110

    4woody
    Member

    Don't forget to grab every bracket, pulley, and bolt-on widget the guy has. Even stuff that looks tortured or just plain generic should come with you.
     
  15. Thanks guys, just got back. It looks better than the crappy phone pics he sent me. Ain't no way I'm starting it. It's free, but the oil was caked up pretty bad. I'm psyched! And Long Island Vic, yeah no kidding about the $$$. But I've been working butt loads of over time and for the first time in my life, I got more money than time! Does that make me a gold chainer? :D

    And Guiseart, you're right, it wasn't a junk yard motor. I bought it off a guy that is building a FED, but didn't feel he could squeeze the ponies out of the Hemi he wanted. I saw the rails, cool as hell!
     
  16. recardo
    Joined: Aug 31, 2006
    Posts: 833

    recardo
    Member
    from Winslow

    Thus the title of this thread is gimped.

    A 392 in a Model-A??
     

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