Cam timing, 360 variators etc.

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>>>ALL 360 OWNERS NEED TO READ EVERYTHING ABOVE<<<<

 

All fascinating stuff.

I'm confused as to where you say the line was half a width off one way, then when corrected was half a width off the other way, yet you made a change of 24 degrees. I assume 24 crank degrees, then cam is 12 degrees...That's an awful lot and would be seen by eye to be more than a line width in my opinion. 12 cam degrees is about a whole tooth of belt.

There is some confusion within Ferrari about which inlet valve of the three per cylinder to measure on. The wording is "use the lateral valve", which for me means either one of the outer ones, and not the central one of the three.

Further confusion arises when the tolerance is claimed to be as such, but if you go through and measure every cylinder, the individual lobe grindings are not accurate to within 4 crank degrees, so to fuss over No.1 is just the beginning, are we to check every valve and set the timing to an aggregate.

FWIW, I have checked the cam profile to be symmetrical, and calculate the point of max opening from the timing information, and set timing to that. Tolerance of 2 cam/4 crank degrees each way is acceptable in my opinion, but I aim for spot on usually. belt stretch/pulley wear with age causes retardation of 1-4 degrees anyway.

 

Well written Brian! I seem to recall there were a number of folks that called us "fools wasting time" in the last thread. Something about every mark made on the cams was spot on and provided an accurate form of cam timing. The results cant be denied! Now kindly provide us with the feedback from the owners perspective on how it runs now. There are those that say degreeing the cams is wasted time, HOG WASH! Damn, I am going to search for that last thread now.....
Well done,
Dave

 

Dave used a great term in the F40 don't do this at home thread. "Consumer Acceptable". I still have two Ferraris but I just bought a Vette too. All the performance and no hassles and a billion go fast goodies. GM is so big that everyone has their eye on them. FNA is trying to scoot under the radar. Keep on them rifledriver!

 

I am collecting my 360 this Saturday after having had the variator campaign done, sure as hell hope the boys there in the UK are more careful and that my baby has even better power now. Will let you folks know if it bad, if its good I am going to be drivin and not typing.

 

This is a sad story.............have they offered a crate motor or is it still......."we can fix this one, time and money no object??"

Man, a six man team to degree cams and only ONE of them is actually working!!

Fascinating..........

 

That was fifth gear, he had one more!

 

REALLY laughing out loud!!

I have crews like that as well, carry on!

 

Does anyone know the date and/or chassis assembly # at which point the variator issue was resolved on cars leaving the factory? And also, can someone explain what the problem was in the first place?

Thanks!

Ray

 

I don't have TSB handy for # and dates (But it's quite old now... anything built 02 or later "should" be fine I would think)

.. but the problem is simply that the thread shears where the variator screws into the camshaft... meaning that the pulley still turns no problem... but it isn't spinning the camshaft anymore.... which means all the valves get bent, and maybe guides/seats/pistons damaged too.

 

TSB #1232
Engines below #60769, Vin range: 114015 - 123399.

 

My engine # is below 60769 by a couple of hundred. My VIN # is also within that range. When I called Ferrari North American however (on an un-related issue), the woman checked my VIN# and said there were no outstanding "campaigns" on my car. Does that mean the dealer had already fixed the aviator issue when the previous owner had it?

Ray

 

Ray,

Probably yes, but to be completely sure I would call the dealer, whose stamp is in the service book, who serviced the car since new for the previous owner, and put that specific question to them.

I know of a 2001 car which didn't have the campaign applied until this year, when the car was undergoing updating to comply with Ferrari requirements for the Power Warranty.

 

I do know my car did have a powertrain warranty until August 2006 when I bought it - the dealer (Ferrari of Washington) did mention that. I would assume this warranty would not have been issued if they didn't make sure all the campaigns had been address.

I just went through all the updated and service bulletins for the 360 - I need an advil...

I'll call FNA in the morning, after I slit one of my wrists here..



Ray

 

I'll call FNA tomorrow and start the convesation like this:

"look, first let me explain, I'm going to drive your car very hard, harder than your average 2000 mile per year customer.. so it's important you give me detailed information on anything which may result in the cam shaft exploding at 9500 RPM's"