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Thread: Hello from an old member
          
   
   

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  1. #346
    rspears's Avatar
    rspears is offline CHR Member/Contributor Visit my Photo Gallery
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    You've got a fantastic crew of friends there, Pel! I REALLY like that EFI manifold on the SBC! It looks very nice, clean and pristine, with the cross over inlet bells. SWEET! Who makes it?
    Roger
    Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.

  2. #347
    pel
    pel is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 76 mgb gt V8
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    I'll ask him Roger. ....................................................................................

    I've asked him now and he says he got the manifold on USA Ebay. Crossover Weber Manifold.
    He says the ITB's were made by this guy FOX ENGINEERING CO. - HOME - WEBER EFI REPLACEMENT

  3. #348
    pel
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    The basic news from todays tear down is:
    All con rod bearings worn to the copper, except the two that had vapourised and left nothing but a badly damaged journal and two wrecked rods.
    All of the crank main bearings show galling marks, but the mains on the crank dont look more than just a little scuffed so they will polish up ok.
    The big problem was that the crank was tight to turn even with all of the rods removed. So we removed the main caps as well and it was still tight, but with one loose spot in rotation. So I guess the crank is now bent or distorted in some way ?
    Luckily one of the guys on site today had this problem before and he has a machine shop guy that corrected this for him on his engine. Apparently this guy took his crank and made it straight and then re ground it and balanced it as well for not much money. Then my mate had the crank cryo treated by another guy I know at 195 below in the UK. This is Andy at 195 below who cryo treated my original MGB drive shafts a while back. Believe it or not this made them twice as strong??
    So there may be hope for the old Rover this year. Here is the worst con rod journal from two angles. In the second picture you can see a raised groove between where the shells would have sat





    stovens likes this.

  4. #349
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    Car Year, Make, Model: 34 Ford 3W Coupe Replica
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    Ouch.. I guess it could be worse somehow?

    Perhaps there's a chance to do an offset grind and gain a touch of stroke? I am not familiar with the Rover engine.. but - just thinking out loud here!

    Glad to hear that your mates got it out and identified the issues so now the healing can begin.
    rspears likes this.

  5. #350
    pel
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  6. #351
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    sadly.. no!

  7. #352
    rspears's Avatar
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    Wow! I guess those strong shots of Happy Gas carry a price! Not doubting, but thinking of the forces required to bend a crank that's secured in the mains - that's some POWER, seems to me.
    Roger
    Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.

  8. #353
    pel
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    I'll try to get the video link working guys.
    Its just a few seconds showing the crank running on the test rig with a dial gauge on the centre main journal. We didnt need the dial gauge to be honest? The crank is rotating 3mm out of true YIKES !!!

    I now have to get a spare crank from a mate to drop it into the block to make sure the block is still straight, which will be lucky I think ?

    So while I'm waiting to do more checking I have made a small start on the SBC build. Well, not so much build, but I have just found a really neat set of Mickey Thompson valve covers and a billet alternator bracket

    Pel

  9. #354
    pel
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  10. #355
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    That one works. Shame about the crank, I'll keep good thoughts that the block is ok.
    Last edited by 34_40; 02-07-2015 at 03:23 PM. Reason: lernin tospelz

  11. #356
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    I guess I didn't know that you could bend a casting. I would think that if the block saw enough force to push the limits it would crack vs deform?
    Roger
    Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.

  12. #357
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    Overtighten the intake bolts on a sbf and you can measure the distortion in the base pan rail.

    The block needs to be "flexible" or it will crack. I'm certain PEL is beyond the limits but we'll see for sure now!

  13. #358
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    Quote Originally Posted by 34_40 View Post
    Overtighten the intake bolts on a sbf and you can measure the distortion in the base pan rail.

    The block needs to be "flexible" or it will crack. I'm certain PEL is beyond the limits but we'll see for sure now!
    I know that the cast block is flexible and will deflect, but I wasn't aware that it would deform, with deflection becoming permanent.
    Last edited by rspears; 02-08-2015 at 10:43 AM.
    Roger
    Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.

  14. #359
    pel
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    I'm hoping for good things with the block

    I will try to get off work early tomorrow to go and grab a spare crank so I can drop it in and see if it spins ok ?
    If it doesnt I'll take the crank and block to my engine guy so he can check it to see if it can be line bored to make it work.

    The block has showed no signs of water leakage or cracking anywhere which may be a good thing ?

    Pel

  15. #360
    pel
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    A quick update!
    Work has kept me from doing any checking. I have taken Thursday off this week as Gill and I will be going to the theatre to watch War Horse in London. So early on Thursday morning I will be dropping my block to the engine shop for proper checks to be done by my engine guy. I will also be collecting the SBC from him for my mates Slingshot so we can get that back together for the spring so I can run it on track while my buddy recovers from some surgery he is having next month. So at least I'll be on track for some fun this season
    Results of the block testing to follow ??

    Regards to you guys over there
    Pel

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