Thanks all for the feedback on this - the owner is pretty frustrated and the days are getting shorter.
Thanks Tom - he did replace the injectors last season (no change to the symptoms) but I agree it’s worth verifying their operation before pulling the injector pump regardless. Dave Sent from my iPhone > On Sep 8, 2021, at 1:43 AM, Tom Buscaglia via CnC-List > <[email protected]> wrote: > > I’d go with injectors. > > Tom Buscaglia > S/V Alera > 1990 C&C 37+/40 > Vashon WA > P 206.463.9200 > C 305.409.3660 > > >>> On Sep 7, 2021, at 6:17 PM, Dave via CnC-List <[email protected]> wrote: >>> >> >> Evening all. Trying to help a neighbour here with a diesel issue. His >> engine will rev freely at idle but with the transmission engaged in either >> forward or reverse, revs increase very slowly and only to 1800-2000 RPM on >> the tach. (whether tach is accurate or not, RPM under load is much lower >> than no-load, and RPM increases quite slowly.) >> We have verified that neither the exhaust system nor the fuel supply to the >> high pressure pump is obstructed. Air Intake is clear. The speed lever >> works smoothly to its full travel. The compression release is not engaged. >> The engine runs a new facet electric fuel pump with plenty of flow. >> When the engine is running, no fuel returns to the tank via the return line. >> The return line is not blocked, at least not downstream from the return >> barb at the injector. I am not sure under what circumstances the fuel >> should return to the tank in a diesel, as the return occurs after the high >> pressure pump. >> >> All This leads me to suspect a fuel (volume) problem but i am not exactly >> sure where to look next. I believe all that’s left are injectors and >> high pressure pump. The high pressure pump has a governor, not sure if that >> functions by restricting fuel flow. >> >> Any thoughts? >> >> Many thanks! Dave 33-2 >> >> Sent from Mail for Windows >> >> Thanks to all of the subscribers that contributed to the list to help with >> the costs involved. If you want to show your support to the list - use >> PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - >> Stu > Thanks to all of the subscribers that contributed to the list to help with > the costs involved. If you want to show your support to the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
