4 versus 2 motor mounts

PSk · Post by **PSk** » Tue Feb 27, 2007 8:45 pm

Alignment would be very tricky with 4 motor mounts, and I assume another for the gearbox. I imagine (but do not know) that this is why Ferrari changed to 2 motor and 1 gearbox to make the usual (modern) 3 point mount system, allows for larger inaccuracies, etc.

How do you check the alignment and fit with the 4 (5) mount system?. Do you have to use feeler gauges and pack as required, or are the mounts soft enough to take any miss-alignment. Surely miss-alignment would stress the engine block?

Best
Pete

PSk · Post by **PSk** » Tue Feb 27, 2007 8:46 pm

Sorry this was supposed to be a reply to the thread: motor and transmission mounts

Embarrassed
Pete

Stephanm · Post by **Stephanm** » Tue Feb 27, 2007 10:04 pm

Are you talking about a 275 GTS with a 4 mount engine and open drive-shaft in comparison to a 330 GTS with a 2 mount engine and torque tube?

PSk · Post by **PSk** » Tue Feb 27, 2007 11:17 pm

Stephanm wrote:Are you talking about a 275 GTS with a 4 mount engine and open drive-shaft in comparison to a 330 GTS with a 2 mount engine and torque tube?

I thought that even cars such as the 250GT 2+2 had 4 motor mounts even with the gearbox connected to the rear of the engine. This is the alignment I was talking about.

Ofcourse for a transaxle car 4 mounts would make more sense, but still not be as easy as 3 mounts.
Pete

shill288 · Post by **shill288** » Thu Mar 01, 2007 1:20 am

I believe the four motor mounts were used to try and keep the whole driveline aligned. Once Ferrari went to the torque tube, they were able to go to a two mount system. Those four motor mount systems with open driveshafts on short nose two cams are a drag. My 4cam, GTC, Daytonas, etc. are soooooo much easier to deal with.

Steve