| Author |
Message |
Mitch Alsup (Mitch_alsup)
Member
Username: Mitch_alsup
Post Number: 271
Registered: 4-2002
| | Posted on Thursday, December 19, 2002 - 10:02 am: | |
"Does this mean the 355 will not require valve adjustments? "
The hydraulic tapets are the reason that the 355 has 2X the engine-out service interval of the 348 {30K instead of 15K}.
"How do they get away from valve float at high rpms?"
Careful engineering and light valves. |
Paul Newman (Newman)
Member
Username: Newman
Post Number: 876
Registered: 12-2001
| | Posted on Wednesday, December 18, 2002 - 11:58 pm: | |
The solution to no valve float at high rpm is light valvetrain components, and cam lobe design. Its funny that they went to hydraulic cam followers because domestic cars are going back to solid cam buckets with shims. Most ford engines require valve adjustments using shims. |
John Delvac (Johndelvac)
Junior Member
Username: Johndelvac
Post Number: 188
Registered: 11-2001
| | Posted on Wednesday, December 18, 2002 - 7:48 pm: | |
Does this mean the 355 will not require valve adjustments? Or does it mean that it will suffer the same fate as a P928? |
magoo (Magoo)
Advanced Member
Username: Magoo
Post Number: 3860
Registered: 2-2001
| | Posted on Wednesday, December 18, 2002 - 7:24 pm: | |
How do they get away from valve float at high rpms? |
Mitch Alsup (Mitch_alsup)
Member
Username: Mitch_alsup
Post Number: 274
Registered: 4-2002
| | Posted on Wednesday, December 18, 2002 - 2:44 pm: | |
F355 |
Jim DeRespino (Jimbo)
New member
Username: Jimbo
Post Number: 31
Registered: 10-2001
| | Posted on Wednesday, December 18, 2002 - 2:17 pm: | |
When did ferrari engines begin using hydraulic lifters in place of the shims to adjust valve clearance? |