[C320-list] New Engine Mounts

[Joe Sever]

My M30 did the same thing. I did adjust the cable so it wouldn't go below 
about 1K and no problems since then.

Joe Sever
Cynjo (148)
Norfolk, VA
----- Original Message ----- 
From: "warren updike" <wupdike at hotmail.com>
To: <c320-list at lists.catalina320.com>
Sent: Sunday, June 29, 2008 10:06 PM
Subject: Re: [C320-list] New Engine Mounts


> Martin, I too have the M30, and it vibrates to beat the band below 1k rpm.
> The diesel mechanic from whom I took a maintenance course said that's 
> common
> with the small diesel engines. His advice was to not run it where it
> vibrates. I've even thought of adjusting the cable so it won't go below 
> 1K.
>
> You didn't say if the vibration was only at very low rpms. Of course, if 
> you
> have that kind of vibration above 1200 rpm I would think that indicates a
> problem to be addressed.
>
> In spite of my low rpm vibration, above 1k the engine runs like a dream. 
> I
> like to cruise at 2700-2800 rpm and do so for hours when necessary with no
> problems.
>
> I'm interested in the outcome and would appreciate your letting me know 
> how
> it is resolved.
>
>
> Warren & Pattie Updke
> Catalina 320, #62, "Warr De Mar"
> Middle River, Chesapeake Bay
>
>
>
>
> -----Original Message-----
> I just replaced my non-stock engine mounts with the stock Perkins mounts 
> per
> the thread below.  To my great distress, the engine now vibrates wildly, 
> to
> the point that the shaft bounces against the shaft tunnel when in gear.  I
> had hoped that the softer stock mounts would solve a long-lasting 
> vibration
> and noise issue I have been experiencing.  Now my mechanic says the real
> culprit may be in the valves and they will be checking that out tomorrow.
> He says he has encountered 2 other Perkins that have serious valve rocker
> wear, and that this can cause the vibration.  Have any of you heard of 
> this
> problem or experienced it yourselves?  Right now I'm feeling rather 
> foolish
> for having invested a huge amount of money in new mounts when those may 
> not
> have been the culprit.  BTW, mine is a 94 Perkins M30.  So let this be a
> caution before blindly switching out motor mounts.  I may have to just go
> back to the old mounts and live with the annoying but tolerable vibration.
> Martin Raphael
> Rhapsody #108
>