I was thinking about running without a cam chain to make my top end quiet and solve all the problems with timing, sprocket noise, ignition advance, etc, but if I really need to have one, which is correct for my CB77E-108333? There's a few on ebay, but I'm not sure they're the right type. cmsnl has the -000 for a lot of euros+shipping, but it looks endless in the picture. The one I took out was a bush-type chain (not roller), and had a master link. A few questions:
What's the difference between the -003 and -000 Honda suffixes?
Endless or master link? (Seems like an endless chain would be inconvenient)
Bush or roller chain? (The one in my engine was not roller chain like the ebay chains)
Is there a later Honda model that uses the same chain at 94L or greater that Honda might still stock?
Thanks!!!
CB77 Timing Chain
Re: CB77 Timing ChainIf ya have a Cam Chain without rollers ya have a rare item for sure.
Knowing the engine as I do I must say that the chain if as ya say ya have would over heat/loose lubrication and fail sooner than a Roller type. Describe your idea how to eliminate the Cam Chain. ..........lm
You have options.
You could use an endless chain like many later model Hondas, but that would require stripping the crank out to replace the chain and unless that needs to be done for other reasons, that would be a PIA. Cam chains come in two basic types. Straight side plates and peanut shaped. Both have their fans. personally I prefer the straight side plate type because it seems to do less damage to the rubber rollers. Other prefer the figure 8 (peanut shape) because it matches the original and it also matches the grooves in the rollers. For Joining links you also have options, rivet or clip. Racers swear blind that it must be riveted and that is probably a stronger option, I have yet to have a clip type fail - maybe I got lucky. My preferred chain is from an SR500 Yamaha which is available as an aftermarket heavy duty chain and last I checked the rivet links were still available. That may be out of date, but any chain should come with a joining link. Most of the chains available for other bikes are longer and have to have a few links removed, but that's not complex. They are all a 219 size and I think the straight plate is BF05. There are several sizes of side plate thickness and pin diameter so buy a spare link or two when you buy the chain. I have several different Honda supplied OEM cam chain links that are different sizes and all useless without exactly the correct matching chain. I'd contact Z1 Enterprises http://www.z1enterprises.com/SearchResu ... am%20chain and ask them for a heavy duty chain with tw links with the number of links you need. They list this one
http://www.z1enterprises.com/detail.aspx?ID=1718 It's a 219H and looks like it might be endless, so be sure to ask for a pair of extra joining links. It will be quite sufficient for any street based motor. Thanks for all the links - What I was really curious about was what the original chain was. Bush-type or roller? There are advantages to the bushing chain like its cheaper and quieter. They may wear a little faster, but as a timing chain, they're in a continuous oil bath so I don't think that's an issue. Just an interesting design choice...
Thanks for the pic.
If ya say there aren't rollers who can disagree. However I do see lines at the contact area which I also find on the chains we get today. (roller) The early/possibly all HONDA issue were/are solid roller rather than rolled steel. I've never seen a pin cam chain in any of the C/CB/CL72/77 engines issued by HONDA for the public to purchase. They do come with pin primary chains however I don't know of any others in the engine. Thanks again for the pic. ..............lm
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