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Discussion Starter · #1 ·
Got a buddy looking at a 91 34

Got a buddy looking at a 91 348, on the invoice copies he sent me, lists a timing chain update done along with timing belt and top end overhaul. It lists they found the center pulley broken as the cause for the valve damage. I had not seen anything reguarding a T-chain update before, what was changed with the " update "

BTW total bill was $11,700

Thanks
 
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Discussion Starter · #3 ·
What is the shop listed on the

What is the shop listed on the invoice? - it would be worth a call to get the details.

Don't know of any chains on a 348 - can you look in or undeneath to see?

This could prove to be very interesting - I might get one myself.
 
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Discussion Starter · #5 ·
Bob,

yes there is an update


Bob,

yes there is an update.

do a search in the archives of old Fchat, the head mechanic from Ferrari UK (Malcom?) and myself had a discussion and answered this Q for someone within the last 5 months. It does involve an update, however I was thinking it was early cars, 89-90 (91?)...didn't think it extended into the later cars.

I have heard (never seen it happen myself) that the early chains can break. Certianly couldn't be considered a common problem, but perhaps the invoice/car you have verifies it can/does happen occasionaly?

The thread we discussed this in contains part#'s and procedures I believe. Sorry can't remember the heading of the thread, something like 348 Cam Chain or Cam Drive.

Regards, JRV
 
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Discussion Starter · #6 ·
JRV

Thanks, will do some mo


JRV

Thanks, will do some more searching on the old brand X board, this is now the TOP tech board
 
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Discussion Starter · #7 ·
To help with the confusion the

To help with the confusion there is a timing belt that drives from the outside. Thats what most people change. There is a timing chain in the motor from the cranshaft to the shaft that has the outward timing cog that you can see from the outside of the motor above the damper
 
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