Thanks for that. I measured the cam-holder-to-cam gap at .023 inches. A bit over but not horrible I suppose; about half a millimeter as I guessed. What I don't get it that the points lobes seemed to drift quite a bit more than that. I ought to run the test again and somehow cram a ruler in there. Hopefully it's much ado about nothing; I was just surprised by the motion you can see in the video.
Steve
> ----- Original Message -----
> From:
> lyletrudell
> To:
> anzhonda600owners@yahoogroups.com
> Sent:
> Monday, March 14, 2011 12:47
> PM
> Subject:
> [anzhonda600owners] Re: points
> and camshafts
> Hi Steve, I just looked at my supply of engine parts. I have a Sedan head > and it's the same except for the cam holder on the drivers side.
> But this
> doesn't matter, they both do the same thing.
> I put a cam holder from my
> coupe with the tach drive and it bolted right up!
> This is how the cam is
> located for end play:
> *The 2 cam lobes closest to the ends of the cam shaft
> have a machined surface. This is a controlled distance from the factory, I > measured 3 cams and they check from finished surfaces > (7.473"-7.477").
> *The cam holders are a combination bearing surface and
> they also control end play. When installed with the proper gasket thickness, > the distance should be (.004"-.014") greater than the cam length. This is why > the gasket thickness is so important.
> Other things to look for:
> *
> Worn or damaged cam holders.
> * Damaged surface on the head that the cam
> holders bolt up to.
> * Worn cam or surface re-machined
> undersize.
> Lyle
> --- In
> anzhonda600owners@yahoogroups.com
> ,
> wrote:
> > Steve;
> > The
> thickness of the gasket (thicker) will pull the cam holder away from
> the cam lobe closest to it. A thinner gasket will make it closer. Your > cam > > seems to have to much room between the inside edge of the Cam > holder end > > the the cam. Leaving it room to move back and > forth.
> > Bill
> > -----Original
> Message-----
> > From:
> anzhonda600owners@yahoogroups.com
> [mailto:
> anzhonda600owners@yahoogroups.com
> ]On
> Behalf Of Steven Michelsen
> > Sent: Sunday, March 13, 2011 5:14
> PM
> > To:
> 2cylinderhondas@yahoogroups.com
> ;
> anzhonda600owners@yahoogroups.com
> Subject: [anzhonda600owners] Re: points and camshafts
> > Hi Bill,
> > Not sure which gaskets
> you are reffering to. Also, as I mentioned my
> > coupe has a sedan motor
> in it - no tach setup. I took a look at everything
> > again, and played
> around with some spare parts I have, to try to get a sense > > of how the > parts interact. After pondering all that I made a little webpage > > that > shows what I understand of all of this so far...I will add to it as
> this gets worked out.
> http://www.honda600coupe.com/floating_points_lobes/
> > Steve
> > ----- Original Message -----
> > From:
> billmyong@...
> > To: 2cylinderhondas@Yahoogroups. Com ;
> anzhonda600owners@yahoogroups.com
> Sent: Sunday, March 13, 2011 6:58 AM
> > Subject: [2cylinderhondas] RE:
> [anzhonda600owners] Re: points and
> > camshafts
> > Steve;
> > Lyle said it, the gasket can change
> the gap. When I was looking for the
> > correct width of gasket material I
> noticed that Honda made a couple of
> > different lengths of the camshaft
> (drivers side) bearing (holder). Causing
> > some bearing ends to bind the
> camshaft when the gasket is to thin. That
> > said, I have also noticed
> that some of the shorter bearings looked as if
> > they were filed which
> may also be warn, which applies to both ends. I would
> > look at the
> gasket width first and see if the tach drive gear and bolt are > > causing > excessive wear on the gear/housing. Also, that much movement can > > cause > side wear on the cam chain.
> > Bill
> > -----Original Message-----
> > From:
> anzhonda600owners@yahoogroups.com
> [mailto:
> anzhonda600owners@yahoogroups.com
> ]On
> Behalf Of lyletrudell
> > Sent: Saturday, March 12, 2011 2:32 PM
> To:
> anzhonda600owners@yahoogroups.com
> Subject: [anzhonda600owners] Re: points and camshafts
> > Hi Steve, the cam shaft end play should be (.004" to
> .014").
> > Yours looks to be alot more than the max.
> > Probably the
> cam shaft has worn the holders a little, allowing more
> > end movement.
> Not sure how the sedan cam holder looks.
> > If I remember correct the
> camshaft end controls movement on the tach
> > side, not the gear. On the
> distibutor side the 3rd diameter (largest)
> > controls movement. Probably
> could shim the cam holders or use thinner
> > gaskets.
> > See what
> the Honda experts say.
> > Hey it sounds like it's running good!
> Lyle
> > --- In
> anzhonda600owners@yahoogroups.com
> ,
> Steven Michelsen
> > wrote:
> > > I
> thought I would go through my Coupe a bit and check gaps and such.
> > I
> started with the points gap. I set it to .35mm as it seemed a bit > small, > > though I couldn't detect a problem while driving it. My concern > now is this:
> > I ran the car a bit with the cover off "just to see" and > noticed that the > > end of the camshaft floats in and out. Please look at > the video; is this > > excessive? Note that I have a sedan engine in the > car; maybe the tach setup > > at the other end would prevent the movement > to some extent.
> http://www.youtube.com/watch?v=cJPOffE2Tbg
> > > Thanks,
> > > Steve