Home |
Search |
Today's Posts |
#1
![]() |
|||
|
|||
![]()
A friend put in a new Perkins M-30 with Hurth trans 2 years ago (34 ft
sail) and has gone thru 4 Hurth transmissions in 700 engine hours. The M-30 engine is marinized and sold by Volvo as the 2030 with the same Hurth trans private labelled as Volvo's own. The engine is a high speed, high compression (23 to 1) 3 cyl that is subject to high torsional dynamics at lower RPMs and this creates big problems - wears our the splines on the drive plate and then chews up the clutches in the trans. One trans lasted only 50 hours from new. Perkins used a spring drive plate when sold as the M-30 - Volvo switched to a 2 part rubber drive plate and apparently increaded the weight of the flywheel to reduce the torsional destruction - wonder how they knew and Perkins didn't? Anyway - the question - who knows about 2 or 3 cyl diesels with lightweight flywheels that tear up the trans with torsional dynamic activity? |
#2
![]() |
|||
|
|||
![]()
Is this referring to s/v erinmore? th4 Nic 32?
-- Dennis Gibbons S/V Dark Lady CN35-207 email: dennis dash gibbons at worldnet dot att dot net "OMOO" wrote in message ... A friend put in a new Perkins M-30 with Hurth trans 2 years ago (34 ft sail) and has gone thru 4 Hurth transmissions in 700 engine hours. The M-30 engine is marinized and sold by Volvo as the 2030 with the same Hurth trans private labelled as Volvo's own. The engine is a high speed, high compression (23 to 1) 3 cyl that is subject to high torsional dynamics at lower RPMs and this creates big problems - wears our the splines on the drive plate and then chews up the clutches in the trans. One trans lasted only 50 hours from new. Perkins used a spring drive plate when sold as the M-30 - Volvo switched to a 2 part rubber drive plate and apparently increaded the weight of the flywheel to reduce the torsional destruction - wonder how they knew and Perkins didn't? Anyway - the question - who knows about 2 or 3 cyl diesels with lightweight flywheels that tear up the trans with torsional dynamic activity? |
#3
![]() |
|||
|
|||
![]()
no it's a catalina 34 called sea dancer
On Sun, 14 Sep 2003 12:23:14 GMT, "Dennis Gibbons" wrote: Is this referring to s/v erinmore? th4 Nic 32? |
#4
![]() |
|||
|
|||
![]()
The reason I asked is that a member of our Nicholson's group is having the
very same problem. If you would repeat your symptoms here on the list, we may have some ideas -- Dennis Gibbons S/V Dark Lady CN35-207 email: dennis dash gibbons at worldnet dot att dot net "OMOO" wrote in message ... no it's a catalina 34 called sea dancer On Sun, 14 Sep 2003 12:23:14 GMT, "Dennis Gibbons" wrote: Is this referring to s/v erinmore? th4 Nic 32? |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|