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Recent content by ray_

  1. R

    Valve depressor tool

    I want to buy a good tool for adjusting the valves on my DOHC CB750k. Is the OEM Honda two piece tool (07964-422000A) better to buy or the MotionPro "c-shaped" one?
  2. R

    Rear shocks rebuild

    Is it possible to rebuild the rear shocks on the '79 CB750K? I think I read somewhere that they are gas filled too? Can anyone please explain or direct me to any resources on how the ones on the 750 work? Thanks.
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    Sideways play in front drive sprocket (normal???)

    Thank you @kirky . I am relieved to know that. I will add that I got in touch with a local Honda expert and he said the same so I am guessing we're good! But OMG, 40 years of working on brit iron is very cool!! (I have been on Earth for slightly more than half that time :)). Brit bikes are the...
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    Sideways play in front drive sprocket (normal???)

    I have been rebuilding a 1979 CB750 engine for some time now (on and off). Since it had been so long since I took my engine apart, I decide to do a mock assembly of my crankcase before I close the crankcase up for good! Everything seems to be fitting well and turning/working as intended (and...
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    broken camshaft holder, leaking tachometer oil seal cb750 dohc

    Alright. Thanks dirtdigger. Btw, would you happen to know what's up with amc49? He has helped me a lot on this build but seems to be quiet these days. Hope all is well with amc49
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    broken camshaft holder, leaking tachometer oil seal cb750 dohc

    Alright. Thanks for the response. Will get the cyl checked and get new rings. Also, I came across this blog on breaking in piston rings. Here's the link: http://www.mototuneusa.com/break_in_secrets.htm How valid do you think this method is. Do you have any experience with doing it as he suggests?
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    broken camshaft holder, leaking tachometer oil seal cb750 dohc

    Hello to all! I have been doing some reading on honing cylinders and why it is necessary for the piston rings. I took the cylinders off (about 10 months to a year ago), and they have been oiled and stored all this while. As for the rings, I had taken them off the pistons to check end gaps etc...
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    broken camshaft holder, leaking tachometer oil seal cb750 dohc

    So I finally got down to measuring the clearances on the OG bearings for the mains. The plastigauge indicates the clearance to be very much identical to the new ones. So it leads me to believe that the bolts are not tight enough although I did set them to 18 ft lbs or there is some other...
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    broken camshaft holder, leaking tachometer oil seal cb750 dohc

    Okay... Measured the con rod clearance too. All 4 are are slightly above 0.038mm, which is exactly what I was expecting. Will do the mains one last time and give you an update.
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    broken camshaft holder, leaking tachometer oil seal cb750 dohc

    I fully agree with you on that. I will admit it is my first time doing this level of engine work. That said, I have been very careful and slow about doing things right. I tried plastigauge twice on the mains with 18 lb.ft torque at the bolts and the results were the same. Have not done the...
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    broken camshaft holder, leaking tachometer oil seal cb750 dohc

    Hello all. Back after a long time and I have some updated to share. I plastigauged my main bearings yesterday. My OG bearings were Black for journal 1 and rest all Brown. As per the general sentiment, I went for a looser fit, opting for all green bearings but I was surprised to find how high the...
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    broken camshaft holder, leaking tachometer oil seal cb750 dohc

    Partspitstop an Ron Ayers. Not so much that I have a choice when selecting them but just wanted to understand what I am getting. For the conrod bearings there is a choice to choose between the three brands but for the mains I think they have just one of them. Don't remember which one. But...
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    broken camshaft holder, leaking tachometer oil seal cb750 dohc

    Hi amc49, I am finally done with finalizing my bearing colors and am about to order parts. Just wanted to ask you which bearings are best: Nippon Dia, Taiho or Daido? These are all OEM brands right? Or are they different than the original Honda bearings?
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