[C320-list] Vibration at 1000 RPMs and Perkins Injectors?

[Jeff Smith]

Max RPMs on the Perkins is somewhere between 3,400 and 3,500. If you are only getting 2,700, it sounds like a fuel restriction issue. I just chased a hard start problem (injectors), followed by reduced RPMs under load (I could get 2,100). My reduced RPMs was an issue with my injection pump. I had all of my injectors rebuilt ($240) and my injection pump rebuilt ($360) and everything seems to work fine now, though I winterized after a brief sea trial, so I did not get an extended test under load. We usually only use it to get it and out of the slip, though, so I am happy. 

Good luck. It took me forever to get this figured out.

Jeff Smith
’94, #121

> On Dec 12, 2020, at 8:19 AM, argates2nd at comcast.net wrote:
> 
> Since launch in FL two weeks ago, my 1995 Hull #182 Perkins has expelled grey smoke.  There is no water in the Raycor separator and the fuel is fresh. RPMs seem normal and top out at 2700 under load.
> A mechanic says it may be due to a stuck injector.  Does anyone have relevant experience?
> Thanks, Rollie
> 
>> On 12/11/2020 1:46 PM Christian <ccaper at gmail.com> wrote:
>> 
>> 
>> Just another post sharing same as others about Perkins, once we drop below
>> 1100, it's like in the middle of an earthquake, and rattles my nerves every
>> time.
>> -Christian
>> #138 (Perkins, 1994 C320)