Re: Will not start need help
Posted by
LukeM on
May 10, 2012; 7:43pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Will-not-start-need-help-tp3972898p3978057.html
Which chain got loose: the short one between the 2 cams, or the long one from the crank to the exhaust cam? Pictures may help.
Some things to look at/look for:
You may be able to put it back on without tearing the engine apart. You will probably want to pull the engine from the frame to have better access. You will also want to know if something else got bent or broken when the chain let go. Valves, dents in piston tops, cams, other stuff.
However, you will want to know how/why the chain got off the cam. Possible causes: a VERY loose cam chain tensioner, bad cam chain guide, stretched chain. Once you find that out, it'll add to the list.
You need to count the cost of this repair vs. finding a used motor to replace it. Doing it yourself will save you lots in labor cost, but the parts ain't cheap.
Luke M
Used to have a 1979 CB750L, sold it as a parts bike, now riding a slightly modified 1984 VT700C. Network/Field Engineer. Central OH, USA, Earth, Sol System, Milky Way Galaxy, Universe.