Ferrari Mailing List: Re: Rob's Timing Belt Parts Mystery

[Robert Garven (rgarven]

Matt,

Since my cam seals were leaking and my valve covers are glued on so tight I just mark the cams at the seals and the belts and pulleys, mark the new belts and swap them out. Technically the belts should slip on perfectly where you took one off, but  the belt stretches after time making them just off enough not to fit. That definitely would do the trick, but my early car doesn't have anything on the camshaft to hold it while you torque down that bolt, which make me apprehensive to go that route! I tried once before with Peter's help to degree my cams, but that was beyond my capabilities, with the engine in the car.

Rob

On Dec 1, 2021, at 6:40 AM, Matt Boyd <ferrari308driver [at] gmail.com> wrote:

Rob,

It's been several years (hopefully not 12 but I don't remember) since I did the belts on my car, but I always locked the camshafts. To get everything perfect though, for example making sure the teeth on the belt line up with the camshaft gear, I woud knock the little dowel out of the cam pulley and move it around and when everything looked perfect I'd look at how the holes on the pulley lined up with the holes on the end of the cam and then put the dowel back into the best positioned hole. If you've been there, I'm sure that makes sense.

-matt

'85 euro 308

On Tue, Nov 30, 2021 at 7:56 PM Robert Garven <rgarven [at] gmail.com> wrote:

Brian,

Can you or anyone else decoded this date code on the timing belts. I am pretty sure that is what it is, as the F40 belts 

they sent have a 20 starting number, the correct belts start with 21, and the older ones I pulled off from the past start 

with numbers that indicate that the first number is a year??

I know many people lock down the camshafts to change the belts and I did that the first time, but it is near impossible 

to get these belts on without turning both camshafts back-and-forth a little bit to get the teeth to slide in. With the tensioner 

springs completely backed off the belt slide right on but it's a real challenge to get the two camshaft rotated correctly so 

that's all this will happen….Its been too long since I did this, wish I had a lift I would change them weekly!

I am embarrassed to say the ones that I had on there had been installed for 12 years and when I took them off I could hear 

them audibly sigh. They held up but they were overdue for changing that's for sure! I've been really good about service on 

both Ferraris but getting back together with the band, and getting older caused me to put this off for too long. I change the oil/s 

and coolant still every year but getting down to these timing belts really is a lot of work on this car!

Rob

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