According to the Maserati technical bulletin *any* engine (4.2 or 4.7) with an engine number of <148697 is potentially susceptible to variator issues
C
C
Variators: Which engine
3 reading
Catmanv2
61 - 80 of 141 Posts
Joined
·
2 Posts
https ://m.youtube.com/results?search_query=cam+variator+maserati
Delete space after https before ://m.youtube...
Joined
·
5 Posts
Im new to this group but a long time owner and it infuriates me to know that some of these issues are self induced by untrained or lazy techs using dry sump filters on wet sump cars as is the high number of QP failures to GT cars. Just because it screws on does not make it compatible. About to buy a 4.7 Executive or Sport GT to wrench on that both have excellent records and the right filters on the blocks. I love the V8 in the machines but its the nature of mechanical parts to fail. Its never a matter of if, but when. Using the correct parts helps put off the when.
Absolutely love the 4.2 and 4.7 V8 in these things and hope you all have many thrilling miles ahead of each and every one of you
Absolutely love the 4.2 and 4.7 V8 in these things and hope you all have many thrilling miles ahead of each and every one of you
Joined
·
22 Posts
I've located a 2010 model year Quattroporte GTS that was manufactured in October 2009 -- however, the engine number is 153XXX. Thus, the engine # is newer than the 148697 cutoff.
@owali seems to be in the same situation with his 2010 GTS.
Joined
·
22 Posts
Are you sure about September 2010, or is the engine # cut-off 148697 the correct way to figure this out? I ask because engines beyond 148597 were put in QP5's in Q4 2009 -- a year before the supposed September 2010 date everyone keeps throwing around this site.
Hi everyone,
Gone through this entire thread...I have a 2010 GTS built in late 2009, and the dealership just told me (when I asked) that my engine number is 150690. Is there a way to definitely "see" the fix. Would love to know what the fix looks like if at all possible.
Gone through this entire thread...I have a 2010 GTS built in late 2009, and the dealership just told me (when I asked) that my engine number is 150690. Is there a way to definitely "see" the fix. Would love to know what the fix looks like if at all possible.
Joined
·
22 Posts
Other threads on this site confirm that "to be safe" (factory engines with the new variator part number), you want engines later than 157854.
Joined
·
7,676 Posts
No idea where that number (157854) comes from but the original one was direct from the Maserati technical bulletin.
There are some threads of a visual check
C
Joined
·
22 Posts
If you look at the other threads in which technicians have commented, apparently the Maserati technical bulletin claims that engines beyond 148697 incorporated the variator fix but Maserati didn't actually change the variator part number so it's unclear (without visual inspection of the variators) if they were indeed replaced with an updated version or repaired. What has been stated on this site is that Maserati changed the actual part numbers beginning with 157854 -- so it would stand to reason that this signals a change in the variator part.
So it's possible that Maserati did redesign the variator and install in engines after 148697 but never changed the variator part number until 157854.
Joined
·
1,023 Posts
Look down into the oil filler. If you see a big spring with some screws pointing to the front of the engine, that’s the new variator. There is a pic on one thread.
BTW, I see a new P/N in the parts catalog I use.
Joined
·
9 Posts
Hey guys,
I'm seriously thinking about getting an 08-09 That has a branded title with 50-60 thousand miles. I'm curious as to what the reliability you guys have had and how much maintenance has been. Let me know because it seems like a fun car and both the 4.2 and4.7 engine are made by Ferrari, is that right?
I'm seriously thinking about getting an 08-09 That has a branded title with 50-60 thousand miles. I'm curious as to what the reliability you guys have had and how much maintenance has been. Let me know because it seems like a fun car and both the 4.2 and4.7 engine are made by Ferrari, is that right?
Joined
·
12 Posts
The dealer gave me the engine# and it was < than when they resolved the cam variator issues. I still bought it because the car had 14,200 miles on it and it was 31k total price. I have NOT seen a 08 GT like mine near the low price I paid for it. Most had 30k + miles on them. I have put 3k miles on it and the only issues seem to be electrical. Heater coming on at start, (I just cut it off) just little annoying issues. The car is 12 years old so what the Heck?
Joined
·
10 Posts
My 4.2 built in June 2010 has and engine number starting with 161...
Joined
·
4 Posts
On Coupes, Grandsport, QP or GT it is uderneath on the engine block near the flywheel. You need to get it up on a hoist each to view it.
Every GT engine is wet sump though, be it the 4.2 or 4.7 according to Wikipedia. Is the 1 in 3 chance only relative to the 4.7? Or is the wet sump 4.2 just as unlucky.
-Troy
Just to add my experience on this issue. I got a 08 GT a few months ago at a great price, one of the things I have to do is to get the variators checked, but at the moment I have higher priorities. I did experience a little rattle on cold start if the car had been sitting for over 3 days. I just read this thread with interest, I like the accumulator idea. What I have done as a temporary measure is get a cheap key blank of ebay cut by the local locksmith. As it has no immobiliser transponder chip in it, it will crank the engine without firing. I use this for a cold start to get some oil pressure then just fire it up with the proper key. Never had a rattle since doing this. The history file with the cars shows that the cam cover gaskets have been changed but no mention of the variators, so interesting that you can see from the oil cap if they have been changed, job for the weekend.
Joined
·
280 Posts
I thought the MC Shift cars (robot manuals) had dry sump systems.
Joined
·
10,409 Posts
No, automatic and F1 cars are both wet sump..J
61 - 80 of 141 Posts
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
