F355 Would you buy this car? - Ferrari Life
 
LinkBack Thread Tools Display Modes
post #1 of 15 Old 10-19-2011, 02:39 PM Thread Starter
 
Join Date: Oct 2011
Ferrari Life Posts: 7
Would you buy this car?

Hello, I have the following numbers on an F355 with 30000 mi and full, engine out belt (30k @ Ferrari Deaiership)1000 miles ago:
Cylinder Compression Leakdown %
#1 200 4%
#2 190 14%
#3 210 5%
#4 205 4%
#5 205 5%
#6 205 6%
#7 200 9%
#8 200 3%
The test was dry, up to temperature.
Is cylinder #2 a dealbreaker?
Thanks!!
Antarctica is offline  
Sponsored Links
Advertisement
 
post #2 of 15 Old 10-19-2011, 03:19 PM
Owner
 
il Capolino's Avatar
 
Join Date: Dec 2009
Location: Switzerland
Ferrari Life Posts: 2,455
Quote:
Originally Posted by Antarctica View Post
Hello, I have the following numbers on an F355 with 30000 mi and full, engine out belt (30k @ Ferrari Deaiership)1000 miles ago:
Cylinder Compression Leakdown %
#1 200 4%
#2 190 14%
#3 210 5%
#4 205 4%
#5 205 5%
#6 205 6%
#7 200 9%
#8 200 3%
The test was dry, up to temperature.
Is cylinder #2 a dealbreaker?
Thanks!!
Ask them to redo #2 compression test. Sometimes they don't get it right. Be present though.

Salve,
Capo

The bad news: Time flies
The good news: I'm the pilot

You cannot make life longer but you can make it wider and higher.
il Capolino is offline  
post #3 of 15 Old 10-19-2011, 03:40 PM Thread Starter
 
Join Date: Oct 2011
Ferrari Life Posts: 7
Thanks for the reply.

We did it several times and 14 was best (last reading). First was 19%. Compression was stable.

The leakdown was intake.

The test was dry.

The opinion was that there was buildup on the valve...

plausible??
Antarctica is offline  
 
post #4 of 15 Old 10-19-2011, 04:39 PM
Owner
 
il Capolino's Avatar
 
Join Date: Dec 2009
Location: Switzerland
Ferrari Life Posts: 2,455
Quote:
Originally Posted by Antarctica View Post
Thanks for the reply.

We did it several times and 14 was best (last reading). First was 19%. Compression was stable.

The leakdown was intake.

The test was dry.

The opinion was that there was buildup on the valve...

plausible??
Build-up is normally on the exhaust side from the exposure of the the valve and valve seat sealing surfaces to the combusted gas flowing past at high temperatures. It is normally caused by unfinished combustion (imperfect carburation) which continues to combust after the exhaust valves have opened, damaging the fine sealing surfaces. It always worsens so a valve and valve seat grinding is needed (if it is a build-up). A build-up on the intake is not good at all. It means you're eventually shooting up combustion in the intake internals (fire and damage warning!).

I don't know how the valve design looks in detail on the 355 but bear in mind it has three intake valves so it is a little bit more complex. On the other hand it has hydraulically adjusted valves so valve play should be under control. Perhaps there has been something wrong on the hydraulic valve adjustment causing a valve or two to burn a build-up? Any Ferrari engineers/mechanics around to enlighten us?

Low compression can also come from blow-by meaning a piston ring can be damaged or broken.

Salve,
Capo

The bad news: Time flies
The good news: I'm the pilot

You cannot make life longer but you can make it wider and higher.
il Capolino is offline  
post #5 of 15 Old 10-19-2011, 04:45 PM
Owner
 
355dreamer's Avatar
 
Join Date: Jul 2006
Location: MAR
Ferrari Life Posts: 1,132
What year is this car?
355dreamer is offline  
post #6 of 15 Old 10-19-2011, 04:55 PM Thread Starter
 
Join Date: Oct 2011
Ferrari Life Posts: 7
1996
Antarctica is offline  
post #7 of 15 Old 10-19-2011, 05:05 PM
Owner
 
il Capolino's Avatar
 
Join Date: Dec 2009
Location: Switzerland
Ferrari Life Posts: 2,455
It's a buyer's market, lots of opportunities out there. I say walk.

Salve,
Capo

The bad news: Time flies
The good news: I'm the pilot

You cannot make life longer but you can make it wider and higher.
il Capolino is offline  
post #8 of 15 Old 10-19-2011, 05:17 PM Thread Starter
 
Join Date: Oct 2011
Ferrari Life Posts: 7
I appreciate the honesty!

Consensus?

I'm emotionally tied to getting an F355...but not tied to THIS car.
Antarctica is offline  
post #9 of 15 Old 10-19-2011, 06:21 PM
Owner
 
355dreamer's Avatar
 
Join Date: Jul 2006
Location: MAR
Ferrari Life Posts: 1,132
I think the numbers look pretty good. Is the car a GTB/S or a spider. That would have a big impact on pricing, with the latter being on the lower end.

Knowing the 355 market pretty well, I can't imagine that you will find a closed top car with better numbers for much less. Have the headers been replaced?
355dreamer is offline  
post #10 of 15 Old 10-19-2011, 06:36 PM Thread Starter
 
Join Date: Oct 2011
Ferrari Life Posts: 7
It's a spider that had a major within the last 1000 miles from a F-Dealership. Original headers and no records to support the valves were done...

...that #2 has me tentative...

...the car "looks" beautiful, of course.
Antarctica is offline  
post #11 of 15 Old 10-19-2011, 06:59 PM
Owner
 
355dreamer's Avatar
 
Join Date: Jul 2006
Location: MAR
Ferrari Life Posts: 1,132
1000 miles, but how long ago?
355dreamer is offline  
post #12 of 15 Old 10-19-2011, 07:20 PM Thread Starter
 
Join Date: Oct 2011
Ferrari Life Posts: 7
Sorry, earlier this year; April.


Sad to me Ferrari didn't address the issue then (if it was noticeable...)
Antarctica is offline  
post #13 of 15 Old 10-19-2011, 08:23 PM
Owner
 
Join Date: May 2010
Ferrari Life Posts: 3,322
I would want to know a bit more as to why it's low, but I don't think I'd disqualify the car based solely on the #2 cylinder's leakdown number.
Killer58 is offline  
post #14 of 15 Old 10-19-2011, 08:35 PM Thread Starter
 
Join Date: Oct 2011
Ferrari Life Posts: 7
that cylinder jumped around a bit.
started at 19%, bled down, stroked bled to 14.
Antarctica is offline  
post #15 of 15 Old 10-19-2011, 08:56 PM
Owner
 
a1exander's Avatar
 
Join Date: Jul 2010
Location: Johannesburg RSA
Ferrari Life Posts: 1,094
Difficult question to answer however I in your shoes knowing what I know now would walk away from it. These cars do suffer on the heads somewhat. As Capo says it is unlikely that there would be build up on the inlet side.
a1exander is offline  
Reply

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
Copyright 2012 ONE Media, Inc.
FerrariLife is independently run with no affiliation with Ferrari SpA
Ferrari for Sale | Maserati for Sale