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  1. T

    Engine case replacement.

    I was thinking $700 for big bore, boring and whatever else I needed. Ill take a look at getting a cam, cycle x kit and the higher performance springs. Will my stock cam chain and cylinder studs hold up and work well with the above done? I know it's a slippery slope. If I go that far I might as...
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    Engine case replacement.

    So I made great progress yesterday on the build and got to putting the jugs back on. I never ordered the damn rings. With my fingers I grabbed the top ring off of piston #3 and it absolutely fell apart. Soooo here I am again with a delimea. I hope this build helps future first timers. All the...
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    Engine Rebuild

    Good luck man! I am working on my first build now too. Everyone here is helpful. Take tons of pictures as your dismantling. That way you can always reference them if you need to and we all like seeing progress.
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    Engine case replacement.

    Rebuilding the case photos
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    Engine case replacement.

    New engine case is here. There may be a problem with it though. Can someone help me out and let me know if I can proceed on the rebuild? I put a close up picture of one of the journals and it is chipped. I don't want to put this one all together for problems to happen down the road. Thanks...
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    Engine case replacement.

    I bought the new case and it is in the mail. Just waiting on it. Tonight I am prepping my garage for its arrival.
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    Engine case replacement.

    With that case it looks like it is terrible shape outside. Is this something I can sand blast? I spent hours cleaning the case I bought with simple green and wire brushes and don't really want to do that again and it was in good shape. Also When I redo it the bible/manual is not very clear on...
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    Engine case replacement.

    Thanks for your help dirtdigger. Do you know where I can find another case or even better a whole engine for my k8? I have been looking online and have only found one engine for $650 and it doesn't look good and only find cases for cb750A's.
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    Engine case replacement.

    Notice the case near the drive chain sprocket. That was the reason for replacement. To remove nasty stuck screws I heated them up and hammered in a 3/8's drive type allen wrench. Bam. Last photo should be new case that I cracked.
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    Engine case replacement.

    I hand tightened all of the upper and lower case bolts then started to tighten the upper bolts little by little and snapped part of the lower case near the gearshift bearing. When I get done at bar ill post a picture.
  11. T

    Engine case replacement.

    Well folks, I cracked the new case. I am very disappointed. I followed the sequence and on one of the turns... Pop! Back to the drawing board. Anyone have a lower case??? Ha
  12. T

    Engine case replacement.

    How the heck do I get the kick starter stopper pin out? Please help.
  13. T

    Engine case replacement.

    I got the cases apart finally! I ended up taking pistons off to remove top of the case. The patch job that was attempted ended up being terrible and I am very glad I am replacing case. I started to move over the crankshaft, clutch and transmission. Transmission gave me grief so I am going to...
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    Engine case replacement.

    Just ordered screws from Honda. Can't wait to get this build finished! Since I have to do a bunch of hurry up and wait for parts I decided to paint the engine and some covers.
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    Engine case replacement.

    I got 2 out of 4 by heating them up and impact driver. Two things, dreading the Dremel (don't have one and more than likely about to own one) and where do I find the screws to replace them? This is my only transportation and want to finish quickly but do it right. Thanks DD
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    Engine case replacement.

    Dirtdigger I don't completely understand. I removed all of the springs and what not linkage. I could not get off the piece with 4 screws that connects to the bearing. Is there a trick to them? I destroyed my impact driver bit trying.
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    Engine case replacement.

    More progress.. I took the rocker arms off, got the cam shaft out, lifters and all 5 million cylinder stud nuts (really 22 nuts) off. [Note: There are 4 hidden nuts, you will need a thin walled 10mm socket or a light tap with a hammer to the long extension. They are under the rubber seals in...
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    Engine case replacement.

    Oh how could I forget, the damn carbs were harder than crab to pull out. The bible says remove the carburetors in one line! Psshh easier said then done. I destroyed the clamps on the hoses between carbs and air box.
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    Engine case replacement.

    Finally started the tear down. Here are some pics. So far the only real tricky part has been actually getting motor out of frame with just my own two arms.
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    Engine case replacement.

    HAHA Nice bike!
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    Engine case replacement.

    Here is my baby.
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    Engine case replacement.

    Engine case picture My ebay purchase of the bare block case.
  23. T

    Engine case replacement.

    When I bought my 78'K she came with a cracked case. It leaks very little oil out of it. Old owner said the chain broke and had its way with the upper and lower case. He tried to fabricate a patch and got it running but still leaking. (I can't wait to see this patch) I just purchased a new to me...
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    Exhaust question. 1978 cb750k

    New Exhaust on bike. Here are a couple shots of my work in progress on my daily driver.
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    Exhaust question. 1978 cb750k

    Here it is on the bike.
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    Exhaust question. 1978 cb750k

    I have the old exhaust. I'll send you a pic soon. It is an old 4-2 somewhat chrome exhaust.
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    Exhaust question. 1978 cb750k

    Thanks! I got it man. I tried 20 different things yesterday so when I tackled it today it was a cinch to remove old exhaust and install the new one. I did it in 45 min start to finish. I can't thank you enough. Next up is my clutch!
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    Exhaust question. 1978 cb750k

    Thanks jackbeagle! So the half moons do not slide under flange? I guess I had it backwards. I'm headed home to try again.
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