I had a Perkins 4108 M on my Fjord 33MS. I recently sold this boat as I was not very happy with the cruisibng environment
(Mediterranea), after spending years in the rest of the world , The Bahamas
and the US intracoastal, at that time with a Seafinn 41 fitted with a Perkins 4.236.
From the many freinds I made, i did not encounter anyone happy with a rebuit Diesel engine. On my last Fjord, the engine was rebuit, a real disaster, hard to start, subject to flooding and leaking oil
. If I would have kept the boat, I was ready to change the engine for a new one.
Not knowing your financial status, if you have to keep this engine, at first, have the injectors checked for proper spray, if they are ok, reassemble with the same copper joints but prior to this, on your stove, heat the copper joint to red then plunge it in a glass of cold water. This will restaure the entire properties of the joint for little expense. Idem for all the other small copper joints in the feeding ramp
. Keep always in mind that an old engine is like an old man, it never be as reliable as a new one!
On my Seafinn, since the engine was new, I made about fivety thousands miles without any problem, but the 4.236 is probably the best Perkins made, more especially the US version. Dont go to forums
about the 4.108, it will ruin your spirit! With injectors checked, before reassembly you could verify the compression to ensure valves close properly, if ok then have the pump rechecked. Timing should no be an issue if the engine start (Mine never started azt the first attempt), always using the heating plug
. At this occasion, may be the heating plug
is leaking which could explain easily your problem. To verify, disconnect the fuel
line to the plug (return), have it dumpt in a bottle while you run the engine. You should have the answer almost immediately. B. Regards. Pierre