#2 Unless engine has been uprated and many were, as built you have welded steel after coolers which are designed to fail internally and cause catostropic failure. This is another reason why it is imperitive that motors be allowed reach at least 2,800 rpm EGT's climb real quick when engine is pulling over 315 proper Hp.
Another issue was that CPL 970's always come out high on power, always had 315 Hp (real not metric hp) just in spec however many were 320Hp and a bit more so needed a bit of taming to get through test. 3 and 6 second torque was simply amazing, however as they were using the prop as the LDA, unless propped real light they black smoked like hell. Early 6BTA 300's to CPL 970 used Nippon Denso fuel pump without boost control. #1 You have later Denso fuel pump with boost control. The 11 # is clearly incorrect CPL 970's were build in UK Darlington serial 8 #s starting 21XXXXXX and US Rocky Mount 8 #'s starting 44XXXXXX.Ĥ4573855 came up stright away on the database:Īssumed that first serial was a typo and substituted 44 fot 11 however came up as not on the database?. Wonder if you have any further thoughts on this ?
Exhaust mixing elbow is sound, muffler is not blocked. This engine had problems stopping, when shut down the engine would continue to 'rattle' for 10 secs or so, injectors when removed & tested showed a couple dribbling & not shutting off correctly.Ĭonsensus is, the excess fuel was causing the engine to bounce around on compression, rather than continuing to rotate, causing a vacuum in the exhaust manifold & drawing water up from the muffler. There is no evidence of water in the inlet side. This had been there since the engine was last run some 6 weeks previous. I wonder if I can presume on you for information on this ?Īt the moment this is being rebuilt after raw water ingress into 4 of the 6 cylinders, when things were stripped there was evidence of standing (raw) water in the turbo & exhaust manifold. Latestarter1, sorry to piggyback on this thread, but I am involved with a 20+ year old SeaRay that has a pair of these, one of the pair is CPL 0970 S/N 445643993.
0 kommentar(er)
