Recent content by Addi

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    Motor Knock FZJ80

    Here is Yota1's response. I'm thankful that I wont actually need to swap it out, so long as I don't screw up this process they describe. Does anyone know the recommended clearance for the oil gear?
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    Motor Knock FZJ80

    Will do! Thanks for the tip!
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    Motor Knock FZJ80

    I regret I did not test the pump gear with the bushing before install. I wish I had. From what I can tell the indentation is equal all around the bushing, and the bushing is installed evenly within the block. I don't have any frame of reference for how easy or difficult they should be to...
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    Motor Knock FZJ80

    Finally back working on the engine, but I ran into a fairly concerning hiccup. The oil pump drive gear wont slide into the new bushing that I installed. I purchased a new brass bushing from Yota1 that should be correct for this engine, but no matter what I try I can't get the gear installed...
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    Motor Knock FZJ80

    I'm going to talk to the shop again tomorrow and see what we can work out. I have half a mind to just buy a short block so I don't have to worry about it anymore, but maybe thats a bit drastic. Luckily I went with .25 over for all my pistons to leave room for a future rebuild, so I guess that...
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    Motor Knock FZJ80

    Well it went worse than I could have expected. I told the shop that only the last cylinder needed to be honed, and I gave them the piston to match with. In an attempt to be helpful they went ahead and honed all the cylinders to match this single oversized piston I provided. I was already upset...
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    Motor Knock FZJ80

    I appreciate your guys input. I’d take it back but I don’t live in Santa Fe anymore and it’s difficult to find the time to get back out there. I was able to find a machine shop in town that could do it quickly, so I should be back in business by Monday! He’s also going to measure out all the...
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    Motor Knock FZJ80

    Motor is painted, the main bearings all gauged out perfect, now I'm on to checking piston to sidewall clearances. I'm not very happy with the work that my previous machine shop did, and I wish I had double checked all of this a year ago when I got the parts back. I'm getting numbers all over...
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    Motor Knock FZJ80

    Ok great! This is all good information. I'll see how well I can clean that valve cover on my own, I paused once I thought I might be degrading that sealer with the degreaser or something. It's nice to know that even if some bits do come off they won't do anything besides fall to the bottom...
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    Motor Knock FZJ80

    Also, in my nonstop cleaning I think I found the source of the oil leak that killed the engine in the first place. I assumed it was originally a bad gasket but there's a small crack on the inside of the upper oil pan that connects to a bolt housing. Perhaps a mix of the two are what caused so...
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    Motor Knock FZJ80

    So in preparation for rebuilding the motor finally, I was cleaning the valve cover with some purple power and I noticed some hard black pieces floating around. It looks like it’s maybe a sealer for that plate that’s on the underside of the cover aa it’s around some of the rivets and all along...
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    Motor Knock FZJ80

    Does anyone know how much you can grind off the crankshaft before its too much? I finally got everything to the machine shop, and owner said he'd probably have to take off .5mm from the rod journals and .25mm off the mains. I was told previously that if I had to take off more than .02" then it...
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    Motor Knock FZJ80

    Well I found the culprit. It looks like the bearings in cylinder #5 were spun, and as you can see in the photos, completely destroyed. The rod caps on that piston are difficult to get on and off and I think that maybe they have warped from the heat? This is all very new territory for me, but...
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    Motor Knock FZJ80

    Ok I'm going to try and update this as I go and keep the video up, in case anyone in the future comes across the same problem. Here's the report from Blackstone. They were spot on about the metal. There is a ton in the oil pan. See photos. The engine is out, and seems to be in overall...
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    Motor Knock FZJ80

    Well, I tried unplugging the spark plug and listening to the engine, but there was no noticeable difference. I also tried the "placing one end of long screwdriver to engine, and one end to ear" trick and couldn't discern where it was coming from. So I bought a mechanics stethoscope to try and...
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