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Recent content by TnTrouble

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    Caterpillar 931 sprocket 6s-8270

    This sprocket has been discontinued according to Cat. Anyone aware of an aftermarket worth using? Cat option is a segment sprocket that runs about 1300 dollars US with hardware. Original was 516.00.
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    Cat 931 engine mystery....

    I have a pre-combustion head sitting on the self. I would not use it without getting it checked out and new guides. What part of KY you in?
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    931 sprocket swap

    Caterpillar 931 78U03789. I need to replace both sprockets and the way i see it i have 3 choices on how to accomplish this task. The first couple of steps are the same regardless. Step 1. Raise the machine body onto cribbing to remove track from ground. Step 2. Drain bevel gear oil and...
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    Cat 931 engine mystery....

    I will have to shoot some pics of the stand I made. I used a frame from a dunnage cart set on two 6 wheel equipment rigging skates. The Mcbee parts I have received are mixed bag. Pistons and rings say USA, Pins and snap rings say China. Rod bolts and main bolts came from Off Road of Alcoa Tn. I...
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    Cat 931 engine mystery....

    More
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    Cat 931 engine mystery....

    More Photos
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    Cat 931 engine mystery....

    Started to build the 3204 di. Have the block back bored .020. Crank turned .020 ay the rod lobes, standard at mains. Resurfaced the top plane to the limit without having to modify pistons. Checked the rod pin bearings and they are to spec. Also checked out the rod bolts but opted to change them...
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    Cat 931 engine mystery....

    Nige, Thanks a million sir. Thats exactly what i needed. I should have read it completely before my last post. You are a great resource sir!
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    Cat 931 engine mystery....

    Conrod let go at the crank bolts. Have yet to pull the crank and pistons to get a better look.
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    Cat 931 engine mystery....

    See below pictures. It is a straight 931. No LGP. I believe the arrangement will work. If you notice in the photos the previous owned bypassed the fuel pump in the accessory drive and ran an inline electric pump straight to the filter. My question regarding conversion is, Will the fuel flow be...
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    Cat 931 engine mystery....

    All photos are of Japer engine
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    Are there any horror stories about newly purchased dozers, then break down?

    https://www.heavyequipmentforums.com/threads/cat-931-engine-mystery.101334/
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    Cat 931 engine mystery....

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    Cat 931 engine mystery....

    Starting a new thread as advised. Purchased a Cat 931 without doing due diligence and now I have a bucket of questions that need help sorting out. I have been unable to find a serial number on the machine bevel gear housing will be my last try in the morning. The machine had a jasper engine...
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    Are there any horror stories about newly purchased dozers, then break down?

    Will do
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