Ross in the UK's timing problems Thank you Dale & Miles, but also .

[rossgashley]

Hi,
I am very pleased as I think I have finally found out why my Z Coupe takes so long to start and runs so badly when it does.
I followed the instructions that Dale kindly sent me and found out that when the slot appears on the cam shaft visible through the right hand (viewed from the front)cam holder, the timing mark on the crank shaft pulley lines up incorrectly with the F and Not the T mark on the casing.
Its brilliant that I have finally found out what the problem probably is.
I have followed the Haynes manual, I have very carefully removed the rocker arms & rods, springs and seals, together with the camshaft itself. Photographed it all and stored it very carefully. I couldn't remove the hydraulic cam chain tensioner. The Haynes manual says I should do this, does it need to be done to replace the chain?
I am assuming that the chain needs replacing as it will have stretched and let the timing slip, is this correct or can I infact just reallign the cam and crankshaft using the existing chain? My car has done 55000 miles.
If I do need to replace the chain, Miles said I can to use a 108 Link DID Brand chain which is available in the UK, but is it possible to obtain and add my own split link to fit it, or am I better off trying to get a 1973 Honda CB450 motorcycle chain which has the split pin but which I will need to cut down? I have tried my local bike shop for the Honda CB450 chain and they couldn't help.
Removing the cam shaft was a pretty big deal for me and if I have to reomve the crankshaft also to fit a chain without a split, that would be quite scary for me.
Thank guys, I look forward to hearing from you.
Ross,

[Greg]

A good source for the timing chain is your local kart club, where it is commonly used as the drive chain.

--- In
2cylinderhondas@yahoogroups.com
, "rossgashley" wrote:
> Hi,
> I am very pleased as I think I have finally found out why my Z Coupe takes so long to start and runs so badly when it does.
> I followed the instructions that Dale kindly sent me and found out that when the slot appears on the cam shaft visible through the right hand (viewed from the front)cam holder, the timing mark on the crank shaft pulley lines up incorrectly with the F and Not the T mark on the casing.
> Its brilliant that I have finally found out what the problem probably is.
> I have followed the Haynes manual, I have very carefully removed the rocker arms & rods, springs and seals, together with the camshaft itself. Photographed it all and stored it very carefully. I couldn't remove the hydraulic cam chain tensioner. The Haynes manual says I should do this, does it need to be done to replace the chain?
> I am assuming that the chain needs replacing as it will have stretched and let the timing slip, is this correct or can I infact just reallign the cam and crankshaft using the existing chain? My car has done 55000 miles.
> If I do need to replace the chain, Miles said I can to use a 108 Link DID Brand chain which is available in the UK, but is it possible to obtain and add my own split link to fit it, or am I better off trying to get a 1973 Honda CB450 motorcycle chain which has the split pin but which I will need to cut down? I have tried my local bike shop for the Honda CB450 chain and they couldn't help.
> Removing the cam shaft was a pretty big deal for me and if I have to reomve the crankshaft also to fit a chain without a split, that would be quite scary for me.
> Thank guys, I look forward to hearing from you.
> Ross,

[friend]

Rule of thumb;
    Their are significant differences between an internal and external chain.  Contact the manufacturer before using the wrong chain.
A catastrophic event is going to happen at 6K rpm with the weaker chain.   And, don't forget to look in a mirror when you say "I never do 6K rpm".
Bill

> -----Original Message-----
> From:
> 2cylinderhondas@yahoogroups.com [mailto:2cylinderhondas@yahoogroups.com] > On > Behalf Of > Greg > Sent:
> Tuesday, April 07, 2009 10:39
> PM
> To:
> 2cylinderhondas@yahoogroups.com
> Subject:
> [2cylinderhondas] Re: Ross in the UK's timing problems Thank you Dale & > Miles, but also ...
> A good source for the timing chain is your local kart club, where it is > commonly used as the drive chain.
> --- In
> 2cylinderhondas@ yahoogroups. com
> ,
> "rossgashley" wrote:
> > Hi,
> > I
> am very pleased as I think I have finally found out why my Z Coupe takes so > long to start and runs so badly when it does.
> > I followed the
> instructions that Dale kindly sent me and found out that when the slot appears > on the cam shaft visible through the right hand (viewed from the front)cam > holder, the timing mark on the crank shaft pulley lines up incorrectly with > the F and Not the T mark on the casing.
> > Its brilliant that I
> have finally found out what the problem probably is.
> > I have
> followed the Haynes manual, I have very carefully removed the rocker arms > & rods, springs and seals, together with the camshaft itself. Photographed > it all and stored it very carefully. I couldn't remove the hydraulic cam chain > tensioner. The Haynes manual says I should do this, does it need to be done to > replace the chain?
> > I am assuming that the chain needs
> replacing as it will have stretched and let the timing slip, is this correct > or can I infact just reallign the cam and crankshaft using the existing chain?
> My car has done 55000 miles.
> > If I do need to replace the
> chain, Miles said I can to use a 108 Link DID Brand chain which is available > in the UK, but is it possible to obtain and add my own split link to fit it, > or am I better off trying to get a 1973 Honda CB450 motorcycle chain which has > the split pin but which I will need to cut down? I have tried my local bike > shop for the Honda CB450 chain and they couldn't help.
> Removing the cam shaft was a pretty big deal for me and if I have to reomve > the crankshaft also to fit a chain without a split, that would be quite scary > for me.
> > Thank guys, I look forward to hearing from
> you.
> > Ross,