Hello sailors
I have the same problem with my 1968 perkins 4.236 85 bhp engine in my cal 46 sailboat
Thx to the internet I get tips advices and help on how to trouble shoot and fix problems
I seem to remember that I was able to rev my engine passed 1500 rpm before
Recently I'd only go to 1000. The engine starts right away. No black or white smoke. It runs smoothly. No water in the oil. It's not burning oil
It has 1100 hours ( almost new)
I had replaced my secondary fuel filter fearing ( on someone's suggestion) that I had reversed the O ring on the engine-attached fuel filter.... That was okay
But I did see that the O ring on the primary Racor 500 o ring had been TWISTED. After this I bled and ran the engine to 180 F temp and I was able to reach 1500
My stainless steel fuel tanks have been cleaned 5 years ago. The auxiliary
Electric fuel filter is clear and the fuel looks sparking clean coming out of the Racor before it feeds into
When I ran my auxiliary fuel pump it puts out fuel readily indicating there is no impediment
Or obstruction of flow from the fuel tanks, which contain biocides and stabilizers
Does anyone know why my RPM is not reaching maximum? And how can I rule out
Problems with injector pump or perhaps lift pump
Thanks in advance
Edwmama
Cal 46 Lahlia
MdR CA
I have the same problem with my 1968 perkins 4.236 85 bhp engine in my cal 46 sailboat
Thx to the internet I get tips advices and help on how to trouble shoot and fix problems
I seem to remember that I was able to rev my engine passed 1500 rpm before
Recently I'd only go to 1000. The engine starts right away. No black or white smoke. It runs smoothly. No water in the oil. It's not burning oil
It has 1100 hours ( almost new)
I had replaced my secondary fuel filter fearing ( on someone's suggestion) that I had reversed the O ring on the engine-attached fuel filter.... That was okay
But I did see that the O ring on the primary Racor 500 o ring had been TWISTED. After this I bled and ran the engine to 180 F temp and I was able to reach 1500
My stainless steel fuel tanks have been cleaned 5 years ago. The auxiliary
Electric fuel filter is clear and the fuel looks sparking clean coming out of the Racor before it feeds into
When I ran my auxiliary fuel pump it puts out fuel readily indicating there is no impediment
Or obstruction of flow from the fuel tanks, which contain biocides and stabilizers
Does anyone know why my RPM is not reaching maximum? And how can I rule out
Problems with injector pump or perhaps lift pump
Thanks in advance
Edwmama
Cal 46 Lahlia
MdR CA