Ferrari Mailing List: Re: Cam timing

[Hans E. Hansen (FList]

Your marks may have been added at some point.  There are some marks
in the raw forging itself, but you are lucky if they are accurate.  The
issue on mine is that there are no *external* marks - the cam covers
have to be pulled to check cam timing.  The mechanic is marking the
cams so we don't have to remove the cam covers in the future.  Altho
I can't figure out why any of this has to be done if the sprockets are
checked and properly installed once.

He's also doing the factory bulletin from a few decades ago regarding
the plug in the end of the cam so that full oil pressure isn't pushing
on the distributor shaft O-ring.  Many cars get away without this mod,
but my distributor has seeped oil since the car was new.  (I'm second
owner and I've kept in touch with the original buyer to get filled in
on tidbits of the car's history.)

Hans.

On Wed, Dec 3, 2008 at 12:58 PM,  <jimshadow [at] verizon.net> wrote:
> That's interesting.....my car has very noticeable marks that are dead on.....
> I figured that the first motors (mine is 0058) were carefully put together 
> with the marks and all........
>
> Jim
> ------Original Message------
> From: Hans E. Hansen
> Sender:
> To: Jim
> Cc: The FerrariList
> Subject: Re: [Ferrari] Cam timing
> Sent: Dec 3, 2008 12:46 PM
>
> My car is currently in for a belt change.  The mechanic ask me if I wanted
> him to degree the cams and make a reference mark for future use.  He
> said that there wasn't anything of "real use" on the cams in the early
> years.  He's charging me an extra 3 hours for this.
>
> Hans.
>
> On Wed, Dec 3, 2008 at 7:20 AM,  <jimshadow [at] verizon.net> wrote:
>> There are a bazillion threads on this subject on FChat.    Basically you 
>> need to degree your cams to check for accuracy if you feel they are off.   
>> There are some great threads written about this process.
>> The general concensus is that the marks are 'reference only' marks and 
>> should not be trusted until verified.
>>
>> FWIW, YMMV
>>
>> Jim
>> ------Original Message------
>> From: Peter Pless
>> To: Jim
>> Cc: The FerrariList
>> Subject: [Ferrari] Cam timing
>> Sent: Dec 3, 2008 8:27 AM
>>
>> Has anyone ever experienced the cam timing marks on a ferrari engine being
>> inaccurate? If so, was it because they weren't the original heads or cams,
>> or was it just a factory stuff up?
>>
>>
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