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And so the Saga of the Bronco II continues.... Chapter III

Discussion in 'The Lounge' started by sled_dog, Feb 8, 2007.

  1. sled_dog

    sled_dog 1 ton status

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    Tried to pull the head last night, but my 1/2" 2135Ti couldn't budge the exhaust manifold bolts, and due to the large amounts of oil soaking everything in that general area I was very hesitant to torch it. So while the air compressor cycled and regained life, I started organizing a drawer in Dad's "toolbox", by the time I was done half the garage was swept up, organized and sorted. And the Bronco still had 2 heads on the engine.

    Well fast forward to tonight. I had a beer(see my beer post) and calmed down from the day. Went out and torched the manifold bolts off, since they were still not budging after heating the manifold cherry red. Then I came in, ate dinner, had a few more beers and went out to the garage. Hand wrenched the head off(damn compressor won't turn on), and this is what I found upon cylinder head removal:

    [​IMG]

    Dad's reponse, "so what put a piston in it?" "hmm 120k miles, busted piston, I don't forsee throwing just a piston in it...."

    Now here is my thing, where is the piece? That is a sizable chunk. The valves look great(closed, haven't pushed them off of their seats). In fact what I'm finding strange is, the cylinder is clean, really clean really. I didn't crank the engine to look at the cylinder walls, but from what i can see the top ring is intact, the valves and combustion chamber are clean(like they swam in anti-freeze almost), and the top of the piston is relatively clean. I didn't take note of whether the chunk was dirty like it had run like that for a while, but since it had a pretty bad miss when it came in, I bet it was like that.

    This makes perfect sense really. He brought it to me for a miss and massive oil leak. So the piston grenaded, thus the cylinder was down = miss. All the pressure of that cylinder was just acting like an air compressor pumping pressure into the crankcase that the PCV couldn't remove = massive oil leak from seemingly nowhere. Why? It was just leaking from everywhere! He noted later that he kind of thinks the PCV was popped out when he opened the hood initially, so that fits.

    I just wonder, where the heck did that a piece that big go?

    Feel bad for him.... worst thing is, if he wants to junk it or something, what about my bill? Kind of thinking I will offer to put in engine in it(and pray he doesn't want that). And if not then I will say "look I will junk it, whatever I get over what my bill was going to be I will give to you, if it doesn't hit what my bill was going to be we will just call it even".

    Kind of hope there is no chapter IV.
     
  2. mtnman210

    mtnman210 1/2 ton status

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    when did you get a bronco?
     
  3. dogdaysunrise

    dogdaysunrise 1/2 ton status

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    Didn't anyone tell you? That is the new Ferd heat reduction system. That's why everything still looks so good. The compression is only gone because it stayed too cool. :rotfl:
     
  4. Jason4x4

    Jason4x4 1/2 ton status

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    it could have been coming apart in small pieces and blowing threw the exhaust valve, and with the fel pro gaskets, when were the heads off last? maybe there is a connection.
     
  5. sled_dog

    sled_dog 1 ton status

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    10k ago, makes me wonder. These engines are known for cracking cylinder heads. Well it cracked both of them not too long ago. He had both heads put on and all new gaskets in the top end 10k ago.
     
  6. diesel4me

    diesel4me 1 ton status Premium Member

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    yup...stick a fork in it...

    The 250 six that was in my 79 C-10 did the same thing--a good sized chunk of the piston closest to the firewall was missing when I pulled the head off..the truck had made a crunching noise when I was stuck in traffic,and it started skipping..soon after it quieted down again,and it didn't run too bad,though I thought I could feel one cylinder not putting out 100%..I drove it about 50-100 more miles,until I decided to try taking it to CT ,to go to a casino to see a Patty Loveless concert a few days later...

    Never got there!--only got about 15 miles from home,and it really started pinging,slowing down,and TONS of oil smoke was belching out the back!:doah:

    I immediately got off the interstate,and limped it home on backroads,except for the last 5 miles..no one behind me could see!..was lucky no cops saw it,I'm sure I'd have gotten a ticket..

    When I pulled the motor and took off the head,I saw that missing chunk of piston,the top ring exposed for about an inch, I knew right away the motor wasn't worth fixing..the cylinder was scored up pretty bad,probably could have honed it out,but I had a lead on a 305 ,and I wanted a small block in the truck anyway..I never found the missing piston peices--I assume they got spit out the tailpipe!..I was suprised I made it home,it had low oil pressure and was knocking,and the temp gauge was in the red for the last 5 miles..only had about 1-1/2 qts of oil left in it!..


    This is the main reason I'm not in my garage trying to make money fixing others vehicles , because I have been through nightmares like yours before--its tough on friendships and relatives when their vehicle is found to be "beyond reasonable repair" ,meaning it'll cost more than its worth to fix..YOU end up being "blamed" for tearing it apart,then finding it needs a whole motor or tranny,etc,and wasn't the cheap easy fix you predicted earlier..:doah: :( ..now YOU have to make it right somehow,or face loss of friendship or even legal action!.

    I'd rather fix small engines..a lot less liability,and most people wont threaten to sue if their riding mower is beyond repair..plus its a lot easier to work on them than todays overcomplicated vehicles..

    But the worst part of working for yourself in a backyard shop, is the fact many people think because your not a "legit" bussiness,they can put off paying you,or give you rubber checks,etc,just because your not a "real" garage...I find getting PAID harder than fixing the junk I repair much of the time..
    I wish I could pay MY bills when I feel like it,instead of when they are due!...and it really sucks when you've got hours invested fixing something,and you find it needs more work than you figured,and the owners just say "nevermind,I'll just scrap it"--then never pay you for your time,or bad mouth you to others,claiming YOU "wrecked" it!..been there!:mad:
     

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