Re: Timing belt

["Guy Weller" <Guy.Weller@xxxxxxxxxxx>]

Nick,
Thanks, did you see my reply to Kevin?
copied here:

        The guage is reading high, AND the fan is cutting in.
This makes me think that
a) the thermostat is opening, else the sensor for the fan wouldn't be
operating.  So I am assuming the thermostat to be OK
b) You may be right, that the rad may not be doing its job.  So perhaps I
will remove and reverse flush that first.

An Alfa mechanic told me that the (nylon) impeller on these pumps has a
habit of slipping on the shaft and reducing its efficiency.  This is what
made me think of the pump at this mileage, but I am putting off that job
until I have properly eliminated all other (easier) solutions!

Do you think I am right with my analysis of the thrmostat?
Guy

----- Original Message ----- 
From: "Nicky Avery" <nicky@domain.elided>
To: <alfa@domain.elided>
Sent: Tuesday, August 26, 2003 5:45 AM
Subject: Re: Timing belt


> Guy,
>
> Why do you suspect the pump? Is is noisy? Is it leaking?
>
> Possibly dumb ???s - before you rush off and splurge on a water pump,
> have you (1) checked the temp gauge to make sure it's not your
> gauge/sender which is the problem, (2) considered it is possible that
> the thermostat is not up to your recently sub-tropical temperatures
> and/or is is just not opening fully? A sender and/or a thermostat should
> be rather cheaper than a pump.
>
>
> >Not much response to my question about water pump replacement on my 156,
but
> >assuming that it does need replacing can anyone give advice on replacing
the
> >timing belt please?
> >
> >Is there a proceedure for locking the flywheel and camshafts before I
remove
> >the belt so that it doesn't need to be re-timed?
> >Can the belt be re-tensioned without special tools?
> >Anything else to look out for with this job?
> >
> >
>
> A badly installed/adjusted timing belt might cost you a new valve train
> and cylinders ... without wishing to cast aspersions on your technical
> skills, may I suggest it could mean less torment to your heart and
> pocket to pay someone who has already gone up the learning curve?
>
> Nicky
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